first

.gitignore

@@ -0,0 +1 @@
+t

Procfile

@@ -0,0 +1 @@
+web: bin/t

ent/client.go

@@ -0,0 +1,213 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"log"
+
+	"t/ent/migrate"
+
+	"t/ent/users"
+
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql"
+)
+
+// Client is the client that holds all ent builders.
+type Client struct {
+	config
+	// Schema is the client for creating, migrating and dropping schema.
+	Schema *migrate.Schema
+	// Users is the client for interacting with the Users builders.
+	Users *UsersClient
+}
+
+// NewClient creates a new client configured with the given options.
+func NewClient(opts ...Option) *Client {
+	cfg := config{log: log.Println, hooks: &hooks{}}
+	cfg.options(opts...)
+	client := &Client{config: cfg}
+	client.init()
+	return client
+}
+
+func (c *Client) init() {
+	c.Schema = migrate.NewSchema(c.driver)
+	c.Users = NewUsersClient(c.config)
+}
+
+// Open opens a database/sql.DB specified by the driver name and
+// the data source name, and returns a new client attached to it.
+// Optional parameters can be added for configuring the client.
+func Open(driverName, dataSourceName string, options ...Option) (*Client, error) {
+	switch driverName {
+	case dialect.MySQL, dialect.Postgres, dialect.SQLite:
+		drv, err := sql.Open(driverName, dataSourceName)
+		if err != nil {
+			return nil, err
+		}
+		return NewClient(append(options, Driver(drv))...), nil
+	default:
+		return nil, fmt.Errorf("unsupported driver: %q", driverName)
+	}
+}
+
+// Tx returns a new transactional client. The provided context
+// is used until the transaction is committed or rolled back.
+func (c *Client) Tx(ctx context.Context) (*Tx, error) {
+	if _, ok := c.driver.(*txDriver); ok {
+		return nil, fmt.Errorf("ent: cannot start a transaction within a transaction")
+	}
+	tx, err := newTx(ctx, c.driver)
+	if err != nil {
+		return nil, fmt.Errorf("ent: starting a transaction: %w", err)
+	}
+	cfg := c.config
+	cfg.driver = tx
+	return &Tx{
+		ctx:    ctx,
+		config: cfg,
+		Users:  NewUsersClient(cfg),
+	}, nil
+}
+
+// BeginTx returns a transactional client with specified options.
+func (c *Client) BeginTx(ctx context.Context, opts *sql.TxOptions) (*Tx, error) {
+	if _, ok := c.driver.(*txDriver); ok {
+		return nil, fmt.Errorf("ent: cannot start a transaction within a transaction")
+	}
+	tx, err := c.driver.(interface {
+		BeginTx(context.Context, *sql.TxOptions) (dialect.Tx, error)
+	}).BeginTx(ctx, opts)
+	if err != nil {
+		return nil, fmt.Errorf("ent: starting a transaction: %w", err)
+	}
+	cfg := c.config
+	cfg.driver = &txDriver{tx: tx, drv: c.driver}
+	return &Tx{
+		ctx:    ctx,
+		config: cfg,
+		Users:  NewUsersClient(cfg),
+	}, nil
+}
+
+// Debug returns a new debug-client. It's used to get verbose logging on specific operations.
+//
+//	client.Debug().
+//		Users.
+//		Query().
+//		Count(ctx)
+//
+func (c *Client) Debug() *Client {
+	if c.debug {
+		return c
+	}
+	cfg := c.config
+	cfg.driver = dialect.Debug(c.driver, c.log)
+	client := &Client{config: cfg}
+	client.init()
+	return client
+}
+
+// Close closes the database connection and prevents new queries from starting.
+func (c *Client) Close() error {
+	return c.driver.Close()
+}
+
+// Use adds the mutation hooks to all the entity clients.
+// In order to add hooks to a specific client, call: `client.Node.Use(...)`.
+func (c *Client) Use(hooks ...Hook) {
+	c.Users.Use(hooks...)
+}
+
+// UsersClient is a client for the Users schema.
+type UsersClient struct {
+	config
+}
+
+// NewUsersClient returns a client for the Users from the given config.
+func NewUsersClient(c config) *UsersClient {
+	return &UsersClient{config: c}
+}
+
+// Use adds a list of mutation hooks to the hooks stack.
+// A call to `Use(f, g, h)` equals to `users.Hooks(f(g(h())))`.
+func (c *UsersClient) Use(hooks ...Hook) {
+	c.hooks.Users = append(c.hooks.Users, hooks...)
+}
+
+// Create returns a create builder for Users.
+func (c *UsersClient) Create() *UsersCreate {
+	mutation := newUsersMutation(c.config, OpCreate)
+	return &UsersCreate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// CreateBulk returns a builder for creating a bulk of Users entities.
+func (c *UsersClient) CreateBulk(builders ...*UsersCreate) *UsersCreateBulk {
+	return &UsersCreateBulk{config: c.config, builders: builders}
+}
+
+// Update returns an update builder for Users.
+func (c *UsersClient) Update() *UsersUpdate {
+	mutation := newUsersMutation(c.config, OpUpdate)
+	return &UsersUpdate{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOne returns an update builder for the given entity.
+func (c *UsersClient) UpdateOne(u *Users) *UsersUpdateOne {
+	mutation := newUsersMutation(c.config, OpUpdateOne, withUsers(u))
+	return &UsersUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// UpdateOneID returns an update builder for the given id.
+func (c *UsersClient) UpdateOneID(id int) *UsersUpdateOne {
+	mutation := newUsersMutation(c.config, OpUpdateOne, withUsersID(id))
+	return &UsersUpdateOne{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// Delete returns a delete builder for Users.
+func (c *UsersClient) Delete() *UsersDelete {
+	mutation := newUsersMutation(c.config, OpDelete)
+	return &UsersDelete{config: c.config, hooks: c.Hooks(), mutation: mutation}
+}
+
+// DeleteOne returns a delete builder for the given entity.
+func (c *UsersClient) DeleteOne(u *Users) *UsersDeleteOne {
+	return c.DeleteOneID(u.ID)
+}
+
+// DeleteOneID returns a delete builder for the given id.
+func (c *UsersClient) DeleteOneID(id int) *UsersDeleteOne {
+	builder := c.Delete().Where(users.ID(id))
+	builder.mutation.id = &id
+	builder.mutation.op = OpDeleteOne
+	return &UsersDeleteOne{builder}
+}
+
+// Query returns a query builder for Users.
+func (c *UsersClient) Query() *UsersQuery {
+	return &UsersQuery{
+		config: c.config,
+	}
+}
+
+// Get returns a Users entity by its id.
+func (c *UsersClient) Get(ctx context.Context, id int) (*Users, error) {
+	return c.Query().Where(users.ID(id)).Only(ctx)
+}
+
+// GetX is like Get, but panics if an error occurs.
+func (c *UsersClient) GetX(ctx context.Context, id int) *Users {
+	obj, err := c.Get(ctx, id)
+	if err != nil {
+		panic(err)
+	}
+	return obj
+}
+
+// Hooks returns the client hooks.
+func (c *UsersClient) Hooks() []Hook {
+	return c.hooks.Users
+}

ent/config.go

@@ -0,0 +1,59 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"entgo.io/ent"
+	"entgo.io/ent/dialect"
+)
+
+// Option function to configure the client.
+type Option func(*config)
+
+// Config is the configuration for the client and its builder.
+type config struct {
+	// driver used for executing database requests.
+	driver dialect.Driver
+	// debug enable a debug logging.
+	debug bool
+	// log used for logging on debug mode.
+	log func(...interface{})
+	// hooks to execute on mutations.
+	hooks *hooks
+}
+
+// hooks per client, for fast access.
+type hooks struct {
+	Users []ent.Hook
+}
+
+// Options applies the options on the config object.
+func (c *config) options(opts ...Option) {
+	for _, opt := range opts {
+		opt(c)
+	}
+	if c.debug {
+		c.driver = dialect.Debug(c.driver, c.log)
+	}
+}
+
+// Debug enables debug logging on the ent.Driver.
+func Debug() Option {
+	return func(c *config) {
+		c.debug = true
+	}
+}
+
+// Log sets the logging function for debug mode.
+func Log(fn func(...interface{})) Option {
+	return func(c *config) {
+		c.log = fn
+	}
+}
+
+// Driver configures the client driver.
+func Driver(driver dialect.Driver) Option {
+	return func(c *config) {
+		c.driver = driver
+	}
+}

ent/context.go

@@ -0,0 +1,33 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+)
+
+type clientCtxKey struct{}
+
+// FromContext returns a Client stored inside a context, or nil if there isn't one.
+func FromContext(ctx context.Context) *Client {
+	c, _ := ctx.Value(clientCtxKey{}).(*Client)
+	return c
+}
+
+// NewContext returns a new context with the given Client attached.
+func NewContext(parent context.Context, c *Client) context.Context {
+	return context.WithValue(parent, clientCtxKey{}, c)
+}
+
+type txCtxKey struct{}
+
+// TxFromContext returns a Tx stored inside a context, or nil if there isn't one.
+func TxFromContext(ctx context.Context) *Tx {
+	tx, _ := ctx.Value(txCtxKey{}).(*Tx)
+	return tx
+}
+
+// NewTxContext returns a new context with the given Tx attached.
+func NewTxContext(parent context.Context, tx *Tx) context.Context {
+	return context.WithValue(parent, txCtxKey{}, tx)
+}

ent/ent.go

@@ -0,0 +1,259 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"errors"
+	"fmt"
+	"t/ent/users"
+
+	"entgo.io/ent"
+	"entgo.io/ent/dialect/sql"
+)
+
+// ent aliases to avoid import conflicts in user's code.
+type (
+	Op         = ent.Op
+	Hook       = ent.Hook
+	Value      = ent.Value
+	Query      = ent.Query
+	Policy     = ent.Policy
+	Mutator    = ent.Mutator
+	Mutation   = ent.Mutation
+	MutateFunc = ent.MutateFunc
+)
+
+// OrderFunc applies an ordering on the sql selector.
+type OrderFunc func(*sql.Selector)
+
+// columnChecker returns a function indicates if the column exists in the given column.
+func columnChecker(table string) func(string) error {
+	checks := map[string]func(string) bool{
+		users.Table: users.ValidColumn,
+	}
+	check, ok := checks[table]
+	if !ok {
+		return func(string) error {
+			return fmt.Errorf("unknown table %q", table)
+		}
+	}
+	return func(column string) error {
+		if !check(column) {
+			return fmt.Errorf("unknown column %q for table %q", column, table)
+		}
+		return nil
+	}
+}
+
+// Asc applies the given fields in ASC order.
+func Asc(fields ...string) OrderFunc {
+	return func(s *sql.Selector) {
+		check := columnChecker(s.TableName())
+		for _, f := range fields {
+			if err := check(f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Asc(s.C(f)))
+		}
+	}
+}
+
+// Desc applies the given fields in DESC order.
+func Desc(fields ...string) OrderFunc {
+	return func(s *sql.Selector) {
+		check := columnChecker(s.TableName())
+		for _, f := range fields {
+			if err := check(f); err != nil {
+				s.AddError(&ValidationError{Name: f, err: fmt.Errorf("ent: %w", err)})
+			}
+			s.OrderBy(sql.Desc(s.C(f)))
+		}
+	}
+}
+
+// AggregateFunc applies an aggregation step on the group-by traversal/selector.
+type AggregateFunc func(*sql.Selector) string
+
+// As is a pseudo aggregation function for renaming another other functions with custom names. For example:
+//
+//	GroupBy(field1, field2).
+//	Aggregate(ent.As(ent.Sum(field1), "sum_field1"), (ent.As(ent.Sum(field2), "sum_field2")).
+//	Scan(ctx, &v)
+//
+func As(fn AggregateFunc, end string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.As(fn(s), end)
+	}
+}
+
+// Count applies the "count" aggregation function on each group.
+func Count() AggregateFunc {
+	return func(s *sql.Selector) string {
+		return sql.Count("*")
+	}
+}
+
+// Max applies the "max" aggregation function on the given field of each group.
+func Max(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		check := columnChecker(s.TableName())
+		if err := check(field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Max(s.C(field))
+	}
+}
+
+// Mean applies the "mean" aggregation function on the given field of each group.
+func Mean(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		check := columnChecker(s.TableName())
+		if err := check(field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Avg(s.C(field))
+	}
+}
+
+// Min applies the "min" aggregation function on the given field of each group.
+func Min(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		check := columnChecker(s.TableName())
+		if err := check(field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Min(s.C(field))
+	}
+}
+
+// Sum applies the "sum" aggregation function on the given field of each group.
+func Sum(field string) AggregateFunc {
+	return func(s *sql.Selector) string {
+		check := columnChecker(s.TableName())
+		if err := check(field); err != nil {
+			s.AddError(&ValidationError{Name: field, err: fmt.Errorf("ent: %w", err)})
+			return ""
+		}
+		return sql.Sum(s.C(field))
+	}
+}
+
+// ValidationError returns when validating a field or edge fails.
+type ValidationError struct {
+	Name string // Field or edge name.
+	err  error
+}
+
+// Error implements the error interface.
+func (e *ValidationError) Error() string {
+	return e.err.Error()
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ValidationError) Unwrap() error {
+	return e.err
+}
+
+// IsValidationError returns a boolean indicating whether the error is a validation error.
+func IsValidationError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ValidationError
+	return errors.As(err, &e)
+}
+
+// NotFoundError returns when trying to fetch a specific entity and it was not found in the database.
+type NotFoundError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotFoundError) Error() string {
+	return "ent: " + e.label + " not found"
+}
+
+// IsNotFound returns a boolean indicating whether the error is a not found error.
+func IsNotFound(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotFoundError
+	return errors.As(err, &e)
+}
+
+// MaskNotFound masks not found error.
+func MaskNotFound(err error) error {
+	if IsNotFound(err) {
+		return nil
+	}
+	return err
+}
+
+// NotSingularError returns when trying to fetch a singular entity and more then one was found in the database.
+type NotSingularError struct {
+	label string
+}
+
+// Error implements the error interface.
+func (e *NotSingularError) Error() string {
+	return "ent: " + e.label + " not singular"
+}
+
+// IsNotSingular returns a boolean indicating whether the error is a not singular error.
+func IsNotSingular(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotSingularError
+	return errors.As(err, &e)
+}
+
+// NotLoadedError returns when trying to get a node that was not loaded by the query.
+type NotLoadedError struct {
+	edge string
+}
+
+// Error implements the error interface.
+func (e *NotLoadedError) Error() string {
+	return "ent: " + e.edge + " edge was not loaded"
+}
+
+// IsNotLoaded returns a boolean indicating whether the error is a not loaded error.
+func IsNotLoaded(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *NotLoadedError
+	return errors.As(err, &e)
+}
+
+// ConstraintError returns when trying to create/update one or more entities and
+// one or more of their constraints failed. For example, violation of edge or
+// field uniqueness.
+type ConstraintError struct {
+	msg  string
+	wrap error
+}
+
+// Error implements the error interface.
+func (e ConstraintError) Error() string {
+	return "ent: constraint failed: " + e.msg
+}
+
+// Unwrap implements the errors.Wrapper interface.
+func (e *ConstraintError) Unwrap() error {
+	return e.wrap
+}
+
+// IsConstraintError returns a boolean indicating whether the error is a constraint failure.
+func IsConstraintError(err error) bool {
+	if err == nil {
+		return false
+	}
+	var e *ConstraintError
+	return errors.As(err, &e)
+}

ent/entc.go

@@ -0,0 +1,85 @@
+//go:build ignore
+
+package main
+
+import (
+	"log"
+
+	"entgo.io/contrib/entoas"
+	"entgo.io/ent/entc"
+	"entgo.io/ent/entc/gen"
+	"github.com/ariga/ogent"
+	"github.com/ogen-go/ogen"
+)
+
+func main() {
+	spec := new(ogen.Spec)
+
+	//oas, err := entoas.NewExtension(entoas.Spec(spec))
+	oas, err := entoas.NewExtension(
+		entoas.Spec(spec),
+		entoas.Mutations(func(_ *gen.Graph, spec *ogen.Spec) error {
+			spec.AddPathItem("/users/{id}/start", ogen.NewPathItem().
+			SetDescription("Start an draw as done").
+			SetPatch(ogen.NewOperation().
+			SetOperationID("drawStart").
+			SetSummary("Draws a card item as done.").
+			AddTags("Users").
+			AddResponse("204", ogen.NewResponse().SetDescription("Item marked as done")),
+		).
+		AddParameters(ogen.NewParameter().
+		InPath().
+		SetName("id").
+		SetRequired(true).
+		SetSchema(ogen.Int()),
+	),
+)
+return nil
+								}),
+
+//								entoas.Mutations(func(_ *gen.Graph, spec *ogen.Spec) error {
+//									spec.AddPathItem(
+//										"/syui",
+//										ogen.NewPathItem().
+//										SetGet(
+//											ogen.NewOperation().
+//											SetOperationID("customReadUser").
+//
+//			AddResponse("204", ogen.NewResponse().SetDescription("Item marked as done")),
+//										),
+//									)
+//						return nil
+//					}),
+								entoas.Mutations(func(_ *gen.Graph, spec *ogen.Spec) error {
+									spec.AddPathItem("/users/{id}/d", ogen.NewPathItem().
+									SetDescription("Start an draw as done").
+									SetPut(ogen.NewOperation().
+									SetOperationID("drawDone").
+									SetSummary("Draws a card item as done.").
+									AddTags("Users").
+									AddResponse("204", ogen.NewResponse().SetDescription("Item marked as done")),
+									//AddResponse("204", ogen.NewResponse().SetDescription("Item marked as done").SetSchema("test")),
+								).
+								AddParameters(ogen.NewParameter().
+								InPath().
+								SetName("id").
+								SetRequired(true).
+								SetSchema(ogen.Int()),
+							),
+						)
+						return nil
+					}),
+				)
+
+				if err != nil {
+					log.Fatalf("creating entoas extension: %v", err)
+				}
+				ogent, err := ogent.NewExtension(spec)
+				if err != nil {
+					log.Fatalf("creating ogent extension: %v", err)
+				}
+				err = entc.Generate("./schema", &gen.Config{}, entc.Extensions(ogent, oas))
+				if err != nil {
+					log.Fatalf("running ent codegen: %v", err)
+				}
+			}

ent/enttest/enttest.go

@@ -0,0 +1,77 @@
+// Code generated by entc, DO NOT EDIT.
+
+package enttest
+
+import (
+	"context"
+	"t/ent"
+	// required by schema hooks.
+	_ "t/ent/runtime"
+
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+type (
+	// TestingT is the interface that is shared between
+	// testing.T and testing.B and used by enttest.
+	TestingT interface {
+		FailNow()
+		Error(...interface{})
+	}
+
+	// Option configures client creation.
+	Option func(*options)
+
+	options struct {
+		opts        []ent.Option
+		migrateOpts []schema.MigrateOption
+	}
+)
+
+// WithOptions forwards options to client creation.
+func WithOptions(opts ...ent.Option) Option {
+	return func(o *options) {
+		o.opts = append(o.opts, opts...)
+	}
+}
+
+// WithMigrateOptions forwards options to auto migration.
+func WithMigrateOptions(opts ...schema.MigrateOption) Option {
+	return func(o *options) {
+		o.migrateOpts = append(o.migrateOpts, opts...)
+	}
+}
+
+func newOptions(opts []Option) *options {
+	o := &options{}
+	for _, opt := range opts {
+		opt(o)
+	}
+	return o
+}
+
+// Open calls ent.Open and auto-run migration.
+func Open(t TestingT, driverName, dataSourceName string, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c, err := ent.Open(driverName, dataSourceName, o.opts...)
+	if err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	if err := c.Schema.Create(context.Background(), o.migrateOpts...); err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	return c
+}
+
+// NewClient calls ent.NewClient and auto-run migration.
+func NewClient(t TestingT, opts ...Option) *ent.Client {
+	o := newOptions(opts)
+	c := ent.NewClient(o.opts...)
+	if err := c.Schema.Create(context.Background(), o.migrateOpts...); err != nil {
+		t.Error(err)
+		t.FailNow()
+	}
+	return c
+}

ent/generate.go

@@ -0,0 +1,4 @@
+package ent
+
+//go:generate go run -mod=mod entc.go
+

ent/hook/hook.go

@@ -0,0 +1,203 @@
+// Code generated by entc, DO NOT EDIT.
+
+package hook
+
+import (
+	"context"
+	"fmt"
+	"t/ent"
+)
+
+// The UsersFunc type is an adapter to allow the use of ordinary
+// function as Users mutator.
+type UsersFunc func(context.Context, *ent.UsersMutation) (ent.Value, error)
+
+// Mutate calls f(ctx, m).
+func (f UsersFunc) Mutate(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+	mv, ok := m.(*ent.UsersMutation)
+	if !ok {
+		return nil, fmt.Errorf("unexpected mutation type %T. expect *ent.UsersMutation", m)
+	}
+	return f(ctx, mv)
+}
+
+// Condition is a hook condition function.
+type Condition func(context.Context, ent.Mutation) bool
+
+// And groups conditions with the AND operator.
+func And(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if !first(ctx, m) || !second(ctx, m) {
+			return false
+		}
+		for _, cond := range rest {
+			if !cond(ctx, m) {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// Or groups conditions with the OR operator.
+func Or(first, second Condition, rest ...Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		if first(ctx, m) || second(ctx, m) {
+			return true
+		}
+		for _, cond := range rest {
+			if cond(ctx, m) {
+				return true
+			}
+		}
+		return false
+	}
+}
+
+// Not negates a given condition.
+func Not(cond Condition) Condition {
+	return func(ctx context.Context, m ent.Mutation) bool {
+		return !cond(ctx, m)
+	}
+}
+
+// HasOp is a condition testing mutation operation.
+func HasOp(op ent.Op) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		return m.Op().Is(op)
+	}
+}
+
+// HasAddedFields is a condition validating `.AddedField` on fields.
+func HasAddedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.AddedField(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.AddedField(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasClearedFields is a condition validating `.FieldCleared` on fields.
+func HasClearedFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if exists := m.FieldCleared(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if exists := m.FieldCleared(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// HasFields is a condition validating `.Field` on fields.
+func HasFields(field string, fields ...string) Condition {
+	return func(_ context.Context, m ent.Mutation) bool {
+		if _, exists := m.Field(field); !exists {
+			return false
+		}
+		for _, field := range fields {
+			if _, exists := m.Field(field); !exists {
+				return false
+			}
+		}
+		return true
+	}
+}
+
+// If executes the given hook under condition.
+//
+//	hook.If(ComputeAverage, And(HasFields(...), HasAddedFields(...)))
+//
+func If(hk ent.Hook, cond Condition) ent.Hook {
+	return func(next ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(ctx context.Context, m ent.Mutation) (ent.Value, error) {
+			if cond(ctx, m) {
+				return hk(next).Mutate(ctx, m)
+			}
+			return next.Mutate(ctx, m)
+		})
+	}
+}
+
+// On executes the given hook only for the given operation.
+//
+//	hook.On(Log, ent.Delete|ent.Create)
+//
+func On(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, HasOp(op))
+}
+
+// Unless skips the given hook only for the given operation.
+//
+//	hook.Unless(Log, ent.Update|ent.UpdateOne)
+//
+func Unless(hk ent.Hook, op ent.Op) ent.Hook {
+	return If(hk, Not(HasOp(op)))
+}
+
+// FixedError is a hook returning a fixed error.
+func FixedError(err error) ent.Hook {
+	return func(ent.Mutator) ent.Mutator {
+		return ent.MutateFunc(func(context.Context, ent.Mutation) (ent.Value, error) {
+			return nil, err
+		})
+	}
+}
+
+// Reject returns a hook that rejects all operations that match op.
+//
+//	func (T) Hooks() []ent.Hook {
+//		return []ent.Hook{
+//			Reject(ent.Delete|ent.Update),
+//		}
+//	}
+//
+func Reject(op ent.Op) ent.Hook {
+	hk := FixedError(fmt.Errorf("%s operation is not allowed", op))
+	return On(hk, op)
+}
+
+// Chain acts as a list of hooks and is effectively immutable.
+// Once created, it will always hold the same set of hooks in the same order.
+type Chain struct {
+	hooks []ent.Hook
+}
+
+// NewChain creates a new chain of hooks.
+func NewChain(hooks ...ent.Hook) Chain {
+	return Chain{append([]ent.Hook(nil), hooks...)}
+}
+
+// Hook chains the list of hooks and returns the final hook.
+func (c Chain) Hook() ent.Hook {
+	return func(mutator ent.Mutator) ent.Mutator {
+		for i := len(c.hooks) - 1; i >= 0; i-- {
+			mutator = c.hooks[i](mutator)
+		}
+		return mutator
+	}
+}
+
+// Append extends a chain, adding the specified hook
+// as the last ones in the mutation flow.
+func (c Chain) Append(hooks ...ent.Hook) Chain {
+	newHooks := make([]ent.Hook, 0, len(c.hooks)+len(hooks))
+	newHooks = append(newHooks, c.hooks...)
+	newHooks = append(newHooks, hooks...)
+	return Chain{newHooks}
+}
+
+// Extend extends a chain, adding the specified chain
+// as the last ones in the mutation flow.
+func (c Chain) Extend(chain Chain) Chain {
+	return c.Append(chain.hooks...)
+}

ent/http/create.go

@@ -0,0 +1,224 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http
+
+import (
+	"net/http"
+	"strings"
+	"t/ent"
+	"t/ent/compartment"
+	"t/ent/entry"
+	"t/ent/fridge"
+	"t/ent/item"
+
+	"github.com/mailru/easyjson"
+	"go.uber.org/zap"
+)
+
+// Create creates a new ent.Compartment and stores it in the database.
+func (h CompartmentHandler) Create(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Create"))
+	// Get the post data.
+	var d CompartmentCreateRequest
+	if err := easyjson.UnmarshalFromReader(r.Body, &d); err != nil {
+		l.Error("error decoding json", zap.Error(err))
+		BadRequest(w, "invalid json string")
+		return
+	}
+	// Save the data.
+	b := h.client.Compartment.Create()
+	e, err := b.Save(r.Context())
+	if err != nil {
+		switch {
+		default:
+			l.Error("could not create compartment", zap.Error(err))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	// Store id of fresh entity to log errors for the reload.
+	id := e.ID
+	// Reload entry.
+	q := h.client.Compartment.Query().Where(compartment.ID(e.ID))
+	ret, err := q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could not read compartment", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("compartment rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewCompartment3324871446View(ret), w)
+}
+
+// Create creates a new ent.Entry and stores it in the database.
+func (h EntryHandler) Create(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Create"))
+	// Get the post data.
+	var d EntryCreateRequest
+	if err := easyjson.UnmarshalFromReader(r.Body, &d); err != nil {
+		l.Error("error decoding json", zap.Error(err))
+		BadRequest(w, "invalid json string")
+		return
+	}
+	// Validate the data.
+	errs := make(map[string]string)
+	if d.User == nil {
+		errs["user"] = `missing required field: "user"`
+	} else if err := entry.UserValidator(*d.User); err != nil {
+		errs["user"] = strings.TrimPrefix(err.Error(), "entry: ")
+	}
+	if d.First == nil {
+		errs["first"] = `missing required field: "first"`
+	}
+	if len(errs) > 0 {
+		l.Info("validation failed", zapFields(errs)...)
+		BadRequest(w, errs)
+		return
+	}
+	// Save the data.
+	b := h.client.Entry.Create()
+	if d.User != nil {
+		b.SetUser(*d.User)
+	}
+	if d.First != nil {
+		b.SetFirst(*d.First)
+	}
+	if d.CreatedAt != nil {
+		b.SetCreatedAt(*d.CreatedAt)
+	}
+	e, err := b.Save(r.Context())
+	if err != nil {
+		switch {
+		default:
+			l.Error("could not create entry", zap.Error(err))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	// Store id of fresh entity to log errors for the reload.
+	id := e.ID
+	// Reload entry.
+	q := h.client.Entry.Query().Where(entry.ID(e.ID))
+	ret, err := q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.String("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.String("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could not read entry", zap.Error(err), zap.String("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("entry rendered", zap.String("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewEntry2675665849View(ret), w)
+}
+
+// Create creates a new ent.Fridge and stores it in the database.
+func (h FridgeHandler) Create(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Create"))
+	// Get the post data.
+	var d FridgeCreateRequest
+	if err := easyjson.UnmarshalFromReader(r.Body, &d); err != nil {
+		l.Error("error decoding json", zap.Error(err))
+		BadRequest(w, "invalid json string")
+		return
+	}
+	// Save the data.
+	b := h.client.Fridge.Create()
+	e, err := b.Save(r.Context())
+	if err != nil {
+		switch {
+		default:
+			l.Error("could not create fridge", zap.Error(err))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	// Store id of fresh entity to log errors for the reload.
+	id := e.ID
+	// Reload entry.
+	q := h.client.Fridge.Query().Where(fridge.ID(e.ID))
+	ret, err := q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could not read fridge", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("fridge rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewFridge2211356377View(ret), w)
+}
+
+// Create creates a new ent.Item and stores it in the database.
+func (h ItemHandler) Create(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Create"))
+	// Get the post data.
+	var d ItemCreateRequest
+	if err := easyjson.UnmarshalFromReader(r.Body, &d); err != nil {
+		l.Error("error decoding json", zap.Error(err))
+		BadRequest(w, "invalid json string")
+		return
+	}
+	// Save the data.
+	b := h.client.Item.Create()
+	e, err := b.Save(r.Context())
+	if err != nil {
+		switch {
+		default:
+			l.Error("could not create item", zap.Error(err))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	// Store id of fresh entity to log errors for the reload.
+	id := e.ID
+	// Reload entry.
+	q := h.client.Item.Query().Where(item.ID(e.ID))
+	ret, err := q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could not read item", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("item rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewItem1548468123View(ret), w)
+}

ent/http/delete.go

@@ -0,0 +1,116 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http
+
+import (
+	"net/http"
+	"strconv"
+	"t/ent"
+
+	"github.com/go-chi/chi/v5"
+	"go.uber.org/zap"
+)
+
+// Delete removes a ent.Compartment from the database.
+func (h CompartmentHandler) Delete(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Delete"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	err = h.client.Compartment.DeleteOneID(id).Exec(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		default:
+			l.Error("could-not-delete-compartment", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("compartment deleted", zap.Int("id", id))
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// Delete removes a ent.Entry from the database.
+func (h EntryHandler) Delete(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Delete"))
+	// ID is URL parameter.
+	var err error
+	id := chi.URLParam(r, "id")
+	err = h.client.Entry.DeleteOneID(id).Exec(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.String("id", id))
+			NotFound(w, msg)
+		default:
+			l.Error("could-not-delete-entry", zap.Error(err), zap.String("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("entry deleted", zap.String("id", id))
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// Delete removes a ent.Fridge from the database.
+func (h FridgeHandler) Delete(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Delete"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	err = h.client.Fridge.DeleteOneID(id).Exec(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		default:
+			l.Error("could-not-delete-fridge", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("fridge deleted", zap.Int("id", id))
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// Delete removes a ent.Item from the database.
+func (h ItemHandler) Delete(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Delete"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	err = h.client.Item.DeleteOneID(id).Exec(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		default:
+			l.Error("could-not-delete-item", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("item deleted", zap.Int("id", id))
+	w.WriteHeader(http.StatusNoContent)
+}

ent/http/handler.go

@@ -0,0 +1,185 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http
+
+import (
+	"strings"
+	"t/ent"
+
+	"github.com/go-chi/chi/v5"
+	"go.uber.org/zap"
+)
+
+// NewHandler returns a ready to use handler with all generated endpoints mounted.
+func NewHandler(c *ent.Client, l *zap.Logger) chi.Router {
+	r := chi.NewRouter()
+	MountRoutes(c, l, r)
+	return r
+}
+
+// MountRoutes mounts all generated routes on the given router.
+func MountRoutes(c *ent.Client, l *zap.Logger, r chi.Router) {
+	NewCompartmentHandler(c, l).MountRoutes(r)
+	NewEntryHandler(c, l).MountRoutes(r)
+	NewFridgeHandler(c, l).MountRoutes(r)
+	NewItemHandler(c, l).MountRoutes(r)
+}
+
+// CompartmentHandler handles http crud operations on ent.Compartment.
+type CompartmentHandler struct {
+	client *ent.Client
+	log    *zap.Logger
+}
+
+func NewCompartmentHandler(c *ent.Client, l *zap.Logger) *CompartmentHandler {
+	return &CompartmentHandler{
+		client: c,
+		log:    l.With(zap.String("handler", "CompartmentHandler")),
+	}
+}
+func (h *CompartmentHandler) MountCreateRoute(r chi.Router) *CompartmentHandler {
+	r.Post("/compartments", h.Create)
+	return h
+}
+func (h *CompartmentHandler) MountReadRoute(r chi.Router) *CompartmentHandler {
+	r.Get("/compartments/{id}", h.Read)
+	return h
+}
+func (h *CompartmentHandler) MountUpdateRoute(r chi.Router) *CompartmentHandler {
+	r.Patch("/compartments/{id}", h.Update)
+	return h
+}
+func (h *CompartmentHandler) MountDeleteRoute(r chi.Router) *CompartmentHandler {
+	r.Delete("/compartments/{id}", h.Delete)
+	return h
+}
+func (h *CompartmentHandler) MountListRoute(r chi.Router) *CompartmentHandler {
+	r.Get("/compartments", h.List)
+	return h
+}
+func (h *CompartmentHandler) MountRoutes(r chi.Router) {
+	h.MountCreateRoute(r).MountReadRoute(r).MountUpdateRoute(r).MountDeleteRoute(r).MountListRoute(r)
+}
+
+// EntryHandler handles http crud operations on ent.Entry.
+type EntryHandler struct {
+	client *ent.Client
+	log    *zap.Logger
+}
+
+func NewEntryHandler(c *ent.Client, l *zap.Logger) *EntryHandler {
+	return &EntryHandler{
+		client: c,
+		log:    l.With(zap.String("handler", "EntryHandler")),
+	}
+}
+func (h *EntryHandler) MountCreateRoute(r chi.Router) *EntryHandler {
+	r.Post("/entries", h.Create)
+	return h
+}
+func (h *EntryHandler) MountReadRoute(r chi.Router) *EntryHandler {
+	r.Get("/entries/{id}", h.Read)
+	return h
+}
+func (h *EntryHandler) MountUpdateRoute(r chi.Router) *EntryHandler {
+	r.Patch("/entries/{id}", h.Update)
+	return h
+}
+func (h *EntryHandler) MountDeleteRoute(r chi.Router) *EntryHandler {
+	r.Delete("/entries/{id}", h.Delete)
+	return h
+}
+func (h *EntryHandler) MountListRoute(r chi.Router) *EntryHandler {
+	r.Get("/entries", h.List)
+	return h
+}
+func (h *EntryHandler) MountRoutes(r chi.Router) {
+	h.MountCreateRoute(r).MountReadRoute(r).MountUpdateRoute(r).MountDeleteRoute(r).MountListRoute(r)
+}
+
+// FridgeHandler handles http crud operations on ent.Fridge.
+type FridgeHandler struct {
+	client *ent.Client
+	log    *zap.Logger
+}
+
+func NewFridgeHandler(c *ent.Client, l *zap.Logger) *FridgeHandler {
+	return &FridgeHandler{
+		client: c,
+		log:    l.With(zap.String("handler", "FridgeHandler")),
+	}
+}
+func (h *FridgeHandler) MountCreateRoute(r chi.Router) *FridgeHandler {
+	r.Post("/fridges", h.Create)
+	return h
+}
+func (h *FridgeHandler) MountReadRoute(r chi.Router) *FridgeHandler {
+	r.Get("/fridges/{id}", h.Read)
+	return h
+}
+func (h *FridgeHandler) MountUpdateRoute(r chi.Router) *FridgeHandler {
+	r.Patch("/fridges/{id}", h.Update)
+	return h
+}
+func (h *FridgeHandler) MountDeleteRoute(r chi.Router) *FridgeHandler {
+	r.Delete("/fridges/{id}", h.Delete)
+	return h
+}
+func (h *FridgeHandler) MountListRoute(r chi.Router) *FridgeHandler {
+	r.Get("/fridges", h.List)
+	return h
+}
+func (h *FridgeHandler) MountRoutes(r chi.Router) {
+	h.MountCreateRoute(r).MountReadRoute(r).MountUpdateRoute(r).MountDeleteRoute(r).MountListRoute(r)
+}
+
+// ItemHandler handles http crud operations on ent.Item.
+type ItemHandler struct {
+	client *ent.Client
+	log    *zap.Logger
+}
+
+func NewItemHandler(c *ent.Client, l *zap.Logger) *ItemHandler {
+	return &ItemHandler{
+		client: c,
+		log:    l.With(zap.String("handler", "ItemHandler")),
+	}
+}
+func (h *ItemHandler) MountCreateRoute(r chi.Router) *ItemHandler {
+	r.Post("/items", h.Create)
+	return h
+}
+func (h *ItemHandler) MountReadRoute(r chi.Router) *ItemHandler {
+	r.Get("/items/{id}", h.Read)
+	return h
+}
+func (h *ItemHandler) MountUpdateRoute(r chi.Router) *ItemHandler {
+	r.Patch("/items/{id}", h.Update)
+	return h
+}
+func (h *ItemHandler) MountDeleteRoute(r chi.Router) *ItemHandler {
+	r.Delete("/items/{id}", h.Delete)
+	return h
+}
+func (h *ItemHandler) MountListRoute(r chi.Router) *ItemHandler {
+	r.Get("/items", h.List)
+	return h
+}
+func (h *ItemHandler) MountRoutes(r chi.Router) {
+	h.MountCreateRoute(r).MountReadRoute(r).MountUpdateRoute(r).MountDeleteRoute(r).MountListRoute(r)
+}
+
+func stripEntError(err error) string {
+	return strings.TrimPrefix(err.Error(), "ent: ")
+}
+
+func zapFields(errs map[string]string) []zap.Field {
+	if errs == nil || len(errs) == 0 {
+		return nil
+	}
+	r := make([]zap.Field, 0)
+	for k, v := range errs {
+		r = append(r, zap.String(k, v))
+	}
+	return r
+}

ent/http/list.go

@@ -0,0 +1,147 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http
+
+import (
+	"net/http"
+	"strconv"
+
+	"github.com/mailru/easyjson"
+	"go.uber.org/zap"
+)
+
+// Read fetches the ent.Compartment identified by a given url-parameter from the
+// database and returns it to the client.
+func (h *CompartmentHandler) List(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "List"))
+	q := h.client.Compartment.Query()
+	var err error
+	page := 1
+	if d := r.URL.Query().Get("page"); d != "" {
+		page, err = strconv.Atoi(d)
+		if err != nil {
+			l.Info("error parsing query parameter 'page'", zap.String("page", d), zap.Error(err))
+			BadRequest(w, "page must be an integer greater zero")
+			return
+		}
+	}
+	itemsPerPage := 30
+	if d := r.URL.Query().Get("itemsPerPage"); d != "" {
+		itemsPerPage, err = strconv.Atoi(d)
+		if err != nil {
+			l.Info("error parsing query parameter 'itemsPerPage'", zap.String("itemsPerPage", d), zap.Error(err))
+			BadRequest(w, "itemsPerPage must be an integer greater zero")
+			return
+		}
+	}
+	es, err := q.Limit(itemsPerPage).Offset((page - 1) * itemsPerPage).All(r.Context())
+	if err != nil {
+		l.Error("error fetching compartments from db", zap.Error(err))
+		InternalServerError(w, nil)
+		return
+	}
+	l.Info("compartments rendered", zap.Int("amount", len(es)))
+	easyjson.MarshalToHTTPResponseWriter(NewCompartment3324871446Views(es), w)
+}
+
+// Read fetches the ent.Entry identified by a given url-parameter from the
+// database and returns it to the client.
+func (h *EntryHandler) List(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "List"))
+	q := h.client.Entry.Query()
+	var err error
+	page := 1
+	if d := r.URL.Query().Get("page"); d != "" {
+		page, err = strconv.Atoi(d)
+		if err != nil {
+			l.Info("error parsing query parameter 'page'", zap.String("page", d), zap.Error(err))
+			BadRequest(w, "page must be an integer greater zero")
+			return
+		}
+	}
+	itemsPerPage := 30
+	if d := r.URL.Query().Get("itemsPerPage"); d != "" {
+		itemsPerPage, err = strconv.Atoi(d)
+		if err != nil {
+			l.Info("error parsing query parameter 'itemsPerPage'", zap.String("itemsPerPage", d), zap.Error(err))
+			BadRequest(w, "itemsPerPage must be an integer greater zero")
+			return
+		}
+	}
+	es, err := q.Limit(itemsPerPage).Offset((page - 1) * itemsPerPage).All(r.Context())
+	if err != nil {
+		l.Error("error fetching entries from db", zap.Error(err))
+		InternalServerError(w, nil)
+		return
+	}
+	l.Info("entries rendered", zap.Int("amount", len(es)))
+	easyjson.MarshalToHTTPResponseWriter(NewEntry2675665849Views(es), w)
+}
+
+// Read fetches the ent.Fridge identified by a given url-parameter from the
+// database and returns it to the client.
+func (h *FridgeHandler) List(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "List"))
+	q := h.client.Fridge.Query()
+	var err error
+	page := 1
+	if d := r.URL.Query().Get("page"); d != "" {
+		page, err = strconv.Atoi(d)
+		if err != nil {
+			l.Info("error parsing query parameter 'page'", zap.String("page", d), zap.Error(err))
+			BadRequest(w, "page must be an integer greater zero")
+			return
+		}
+	}
+	itemsPerPage := 30
+	if d := r.URL.Query().Get("itemsPerPage"); d != "" {
+		itemsPerPage, err = strconv.Atoi(d)
+		if err != nil {
+			l.Info("error parsing query parameter 'itemsPerPage'", zap.String("itemsPerPage", d), zap.Error(err))
+			BadRequest(w, "itemsPerPage must be an integer greater zero")
+			return
+		}
+	}
+	es, err := q.Limit(itemsPerPage).Offset((page - 1) * itemsPerPage).All(r.Context())
+	if err != nil {
+		l.Error("error fetching fridges from db", zap.Error(err))
+		InternalServerError(w, nil)
+		return
+	}
+	l.Info("fridges rendered", zap.Int("amount", len(es)))
+	easyjson.MarshalToHTTPResponseWriter(NewFridge2211356377Views(es), w)
+}
+
+// Read fetches the ent.Item identified by a given url-parameter from the
+// database and returns it to the client.
+func (h *ItemHandler) List(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "List"))
+	q := h.client.Item.Query()
+	var err error
+	page := 1
+	if d := r.URL.Query().Get("page"); d != "" {
+		page, err = strconv.Atoi(d)
+		if err != nil {
+			l.Info("error parsing query parameter 'page'", zap.String("page", d), zap.Error(err))
+			BadRequest(w, "page must be an integer greater zero")
+			return
+		}
+	}
+	itemsPerPage := 30
+	if d := r.URL.Query().Get("itemsPerPage"); d != "" {
+		itemsPerPage, err = strconv.Atoi(d)
+		if err != nil {
+			l.Info("error parsing query parameter 'itemsPerPage'", zap.String("itemsPerPage", d), zap.Error(err))
+			BadRequest(w, "itemsPerPage must be an integer greater zero")
+			return
+		}
+	}
+	es, err := q.Limit(itemsPerPage).Offset((page - 1) * itemsPerPage).All(r.Context())
+	if err != nil {
+		l.Error("error fetching items from db", zap.Error(err))
+		InternalServerError(w, nil)
+		return
+	}
+	l.Info("items rendered", zap.Int("amount", len(es)))
+	easyjson.MarshalToHTTPResponseWriter(NewItem1548468123Views(es), w)
+}

ent/http/read.go

@@ -0,0 +1,149 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http
+
+import (
+	"net/http"
+	"strconv"
+	"t/ent"
+	"t/ent/compartment"
+	"t/ent/entry"
+	"t/ent/fridge"
+	"t/ent/item"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/mailru/easyjson"
+	"go.uber.org/zap"
+)
+
+// Read fetches the ent.Compartment identified by a given url-parameter from the
+// database and renders it to the client.
+func (h *CompartmentHandler) Read(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Read"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	// Create the query to fetch the Compartment
+	q := h.client.Compartment.Query().Where(compartment.ID(id))
+	e, err := q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could not read compartment", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("compartment rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewCompartment3324871446View(e), w)
+}
+
+// Read fetches the ent.Entry identified by a given url-parameter from the
+// database and renders it to the client.
+func (h *EntryHandler) Read(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Read"))
+	// ID is URL parameter.
+	var err error
+	id := chi.URLParam(r, "id")
+	// Create the query to fetch the Entry
+	q := h.client.Entry.Query().Where(entry.ID(id))
+	e, err := q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.String("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.String("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could not read entry", zap.Error(err), zap.String("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("entry rendered", zap.String("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewEntry2675665849View(e), w)
+}
+
+// Read fetches the ent.Fridge identified by a given url-parameter from the
+// database and renders it to the client.
+func (h *FridgeHandler) Read(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Read"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	// Create the query to fetch the Fridge
+	q := h.client.Fridge.Query().Where(fridge.ID(id))
+	e, err := q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could not read fridge", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("fridge rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewFridge2211356377View(e), w)
+}
+
+// Read fetches the ent.Item identified by a given url-parameter from the
+// database and renders it to the client.
+func (h *ItemHandler) Read(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Read"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	// Create the query to fetch the Item
+	q := h.client.Item.Query().Where(item.ID(id))
+	e, err := q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could not read item", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("item rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewItem1548468123View(e), w)
+}

ent/http/relations.go

@@ -0,0 +1,3 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http

ent/http/request.go

@@ -0,0 +1,42 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http
+
+import (
+	"time"
+)
+
+// Payload of a ent.Compartment create request.
+type CompartmentCreateRequest struct {
+}
+
+// Payload of a ent.Compartment update request.
+type CompartmentUpdateRequest struct {
+}
+
+// Payload of a ent.Entry create request.
+type EntryCreateRequest struct {
+	User      *string    `json:"user"`
+	First     *int       `json:"first"`
+	CreatedAt *time.Time `json:"created_at"`
+}
+
+// Payload of a ent.Entry update request.
+type EntryUpdateRequest struct {
+}
+
+// Payload of a ent.Fridge create request.
+type FridgeCreateRequest struct {
+}
+
+// Payload of a ent.Fridge update request.
+type FridgeUpdateRequest struct {
+}
+
+// Payload of a ent.Item create request.
+type ItemCreateRequest struct {
+}
+
+// Payload of a ent.Item update request.
+type ItemUpdateRequest struct {
+}

ent/http/response.go

@@ -0,0 +1,200 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http
+
+import (
+	"net/http"
+	"strconv"
+	"t/ent"
+	"time"
+
+	"github.com/mailru/easyjson"
+)
+
+// Basic HTTP Error Response
+type ErrResponse struct {
+	Code   int         `json:"code"`             // http response status code
+	Status string      `json:"status"`           // user-level status message
+	Errors interface{} `json:"errors,omitempty"` // application-level error
+}
+
+func (e ErrResponse) MarshalToHTTPResponseWriter(w http.ResponseWriter) (int, error) {
+	d, err := easyjson.Marshal(e)
+	if err != nil {
+		return 0, err
+	}
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	w.Header().Set("Content-Length", strconv.Itoa(len(d)))
+	w.WriteHeader(e.Code)
+	return w.Write(d)
+}
+
+func BadRequest(w http.ResponseWriter, msg interface{}) (int, error) {
+	return ErrResponse{
+		Code:   http.StatusBadRequest,
+		Status: http.StatusText(http.StatusBadRequest),
+		Errors: msg,
+	}.MarshalToHTTPResponseWriter(w)
+}
+
+func Conflict(w http.ResponseWriter, msg interface{}) (int, error) {
+	return ErrResponse{
+		Code:   http.StatusConflict,
+		Status: http.StatusText(http.StatusConflict),
+		Errors: msg,
+	}.MarshalToHTTPResponseWriter(w)
+}
+
+func Forbidden(w http.ResponseWriter, msg interface{}) (int, error) {
+	return ErrResponse{
+		Code:   http.StatusForbidden,
+		Status: http.StatusText(http.StatusForbidden),
+		Errors: msg,
+	}.MarshalToHTTPResponseWriter(w)
+}
+
+func InternalServerError(w http.ResponseWriter, msg interface{}) (int, error) {
+	return ErrResponse{
+		Code:   http.StatusInternalServerError,
+		Status: http.StatusText(http.StatusInternalServerError),
+		Errors: msg,
+	}.MarshalToHTTPResponseWriter(w)
+}
+
+func NotFound(w http.ResponseWriter, msg interface{}) (int, error) {
+	return ErrResponse{
+		Code:   http.StatusNotFound,
+		Status: http.StatusText(http.StatusNotFound),
+		Errors: msg,
+	}.MarshalToHTTPResponseWriter(w)
+}
+
+func Unauthorized(w http.ResponseWriter, msg interface{}) (int, error) {
+	return ErrResponse{
+		Code:   http.StatusUnauthorized,
+		Status: http.StatusText(http.StatusUnauthorized),
+		Errors: msg,
+	}.MarshalToHTTPResponseWriter(w)
+}
+
+type (
+	// Compartment3324871446View represents the data serialized for the following serialization group combinations:
+	// []
+	Compartment3324871446View struct {
+		ID int `json:"id,omitempty"`
+	}
+	Compartment3324871446Views []*Compartment3324871446View
+)
+
+func NewCompartment3324871446View(e *ent.Compartment) *Compartment3324871446View {
+	if e == nil {
+		return nil
+	}
+	return &Compartment3324871446View{
+		ID: e.ID,
+	}
+}
+
+func NewCompartment3324871446Views(es []*ent.Compartment) Compartment3324871446Views {
+	if len(es) == 0 {
+		return nil
+	}
+	r := make(Compartment3324871446Views, len(es))
+	for i, e := range es {
+		r[i] = NewCompartment3324871446View(e)
+	}
+	return r
+}
+
+type (
+	// Entry2675665849View represents the data serialized for the following serialization group combinations:
+	// []
+	Entry2675665849View struct {
+		ID        string    `json:"id,omitempty"`
+		User      string    `json:"user,omitempty"`
+		First     int       `json:"first,omitempty"`
+		CreatedAt time.Time `json:"created_at,omitempty"`
+	}
+	Entry2675665849Views []*Entry2675665849View
+)
+
+func NewEntry2675665849View(e *ent.Entry) *Entry2675665849View {
+	if e == nil {
+		return nil
+	}
+	return &Entry2675665849View{
+		ID:        e.ID,
+		User:      e.User,
+		First:     e.First,
+		CreatedAt: e.CreatedAt,
+	}
+}
+
+func NewEntry2675665849Views(es []*ent.Entry) Entry2675665849Views {
+	if len(es) == 0 {
+		return nil
+	}
+	r := make(Entry2675665849Views, len(es))
+	for i, e := range es {
+		r[i] = NewEntry2675665849View(e)
+	}
+	return r
+}
+
+type (
+	// Fridge2211356377View represents the data serialized for the following serialization group combinations:
+	// []
+	Fridge2211356377View struct {
+		ID int `json:"id,omitempty"`
+	}
+	Fridge2211356377Views []*Fridge2211356377View
+)
+
+func NewFridge2211356377View(e *ent.Fridge) *Fridge2211356377View {
+	if e == nil {
+		return nil
+	}
+	return &Fridge2211356377View{
+		ID: e.ID,
+	}
+}
+
+func NewFridge2211356377Views(es []*ent.Fridge) Fridge2211356377Views {
+	if len(es) == 0 {
+		return nil
+	}
+	r := make(Fridge2211356377Views, len(es))
+	for i, e := range es {
+		r[i] = NewFridge2211356377View(e)
+	}
+	return r
+}
+
+type (
+	// Item1548468123View represents the data serialized for the following serialization group combinations:
+	// []
+	Item1548468123View struct {
+		ID int `json:"id,omitempty"`
+	}
+	Item1548468123Views []*Item1548468123View
+)
+
+func NewItem1548468123View(e *ent.Item) *Item1548468123View {
+	if e == nil {
+		return nil
+	}
+	return &Item1548468123View{
+		ID: e.ID,
+	}
+}
+
+func NewItem1548468123Views(es []*ent.Item) Item1548468123Views {
+	if len(es) == 0 {
+		return nil
+	}
+	r := make(Item1548468123Views, len(es))
+	for i, e := range es {
+		r[i] = NewItem1548468123View(e)
+	}
+	return r
+}

ent/http/update.go

@@ -0,0 +1,260 @@
+// Code generated by entc, DO NOT EDIT.
+
+package http
+
+import (
+	"net/http"
+	"strconv"
+	"t/ent"
+	"t/ent/compartment"
+	"t/ent/entry"
+	"t/ent/fridge"
+	"t/ent/item"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/mailru/easyjson"
+	"go.uber.org/zap"
+)
+
+// Update updates a given ent.Compartment and saves the changes to the database.
+func (h CompartmentHandler) Update(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Update"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	// Get the post data.
+	var d CompartmentUpdateRequest
+	if err := easyjson.UnmarshalFromReader(r.Body, &d); err != nil {
+		l.Error("error decoding json", zap.Error(err))
+		BadRequest(w, "invalid json string")
+		return
+	}
+	// Save the data.
+	b := h.client.Compartment.UpdateOneID(id)
+	// Store in database.
+	e, err := b.Save(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could-not-update-compartment", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	// Reload entry.
+	q := h.client.Compartment.Query().Where(compartment.ID(e.ID))
+	e, err = q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could-not-read-compartment", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("compartment rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewCompartment3324871446View(e), w)
+}
+
+// Update updates a given ent.Entry and saves the changes to the database.
+func (h EntryHandler) Update(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Update"))
+	// ID is URL parameter.
+	var err error
+	id := chi.URLParam(r, "id")
+	// Get the post data.
+	var d EntryUpdateRequest
+	if err := easyjson.UnmarshalFromReader(r.Body, &d); err != nil {
+		l.Error("error decoding json", zap.Error(err))
+		BadRequest(w, "invalid json string")
+		return
+	}
+	// Validate the data.
+	errs := make(map[string]string)
+	if len(errs) > 0 {
+		l.Info("validation failed", zapFields(errs)...)
+		BadRequest(w, errs)
+		return
+	}
+	// Save the data.
+	b := h.client.Entry.UpdateOneID(id)
+	// Store in database.
+	e, err := b.Save(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.String("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.String("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could-not-update-entry", zap.Error(err), zap.String("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	// Reload entry.
+	q := h.client.Entry.Query().Where(entry.ID(e.ID))
+	e, err = q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.String("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.String("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could-not-read-entry", zap.Error(err), zap.String("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("entry rendered", zap.String("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewEntry2675665849View(e), w)
+}
+
+// Update updates a given ent.Fridge and saves the changes to the database.
+func (h FridgeHandler) Update(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Update"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	// Get the post data.
+	var d FridgeUpdateRequest
+	if err := easyjson.UnmarshalFromReader(r.Body, &d); err != nil {
+		l.Error("error decoding json", zap.Error(err))
+		BadRequest(w, "invalid json string")
+		return
+	}
+	// Save the data.
+	b := h.client.Fridge.UpdateOneID(id)
+	// Store in database.
+	e, err := b.Save(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could-not-update-fridge", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	// Reload entry.
+	q := h.client.Fridge.Query().Where(fridge.ID(e.ID))
+	e, err = q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could-not-read-fridge", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("fridge rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewFridge2211356377View(e), w)
+}
+
+// Update updates a given ent.Item and saves the changes to the database.
+func (h ItemHandler) Update(w http.ResponseWriter, r *http.Request) {
+	l := h.log.With(zap.String("method", "Update"))
+	// ID is URL parameter.
+	id, err := strconv.Atoi(chi.URLParam(r, "id"))
+	if err != nil {
+		l.Error("error getting id from url parameter", zap.String("id", chi.URLParam(r, "id")), zap.Error(err))
+		BadRequest(w, "id must be an integer")
+		return
+	}
+	// Get the post data.
+	var d ItemUpdateRequest
+	if err := easyjson.UnmarshalFromReader(r.Body, &d); err != nil {
+		l.Error("error decoding json", zap.Error(err))
+		BadRequest(w, "invalid json string")
+		return
+	}
+	// Save the data.
+	b := h.client.Item.UpdateOneID(id)
+	// Store in database.
+	e, err := b.Save(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could-not-update-item", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	// Reload entry.
+	q := h.client.Item.Query().Where(item.ID(e.ID))
+	e, err = q.Only(r.Context())
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			msg := stripEntError(err)
+			l.Info(msg, zap.Error(err), zap.Int("id", id))
+			NotFound(w, msg)
+		case ent.IsNotSingular(err):
+			msg := stripEntError(err)
+			l.Error(msg, zap.Error(err), zap.Int("id", id))
+			BadRequest(w, msg)
+		default:
+			l.Error("could-not-read-item", zap.Error(err), zap.Int("id", id))
+			InternalServerError(w, nil)
+		}
+		return
+	}
+	l.Info("item rendered", zap.Int("id", id))
+	easyjson.MarshalToHTTPResponseWriter(NewItem1548468123View(e), w)
+}

ent/migrate/migrate.go

@@ -0,0 +1,71 @@
+// Code generated by entc, DO NOT EDIT.
+
+package migrate
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"entgo.io/ent/dialect"
+	"entgo.io/ent/dialect/sql/schema"
+)
+
+var (
+	// WithGlobalUniqueID sets the universal ids options to the migration.
+	// If this option is enabled, ent migration will allocate a 1<<32 range
+	// for the ids of each entity (table).
+	// Note that this option cannot be applied on tables that already exist.
+	WithGlobalUniqueID = schema.WithGlobalUniqueID
+	// WithDropColumn sets the drop column option to the migration.
+	// If this option is enabled, ent migration will drop old columns
+	// that were used for both fields and edges. This defaults to false.
+	WithDropColumn = schema.WithDropColumn
+	// WithDropIndex sets the drop index option to the migration.
+	// If this option is enabled, ent migration will drop old indexes
+	// that were defined in the schema. This defaults to false.
+	// Note that unique constraints are defined using `UNIQUE INDEX`,
+	// and therefore, it's recommended to enable this option to get more
+	// flexibility in the schema changes.
+	WithDropIndex = schema.WithDropIndex
+	// WithFixture sets the foreign-key renaming option to the migration when upgrading
+	// ent from v0.1.0 (issue-#285). Defaults to false.
+	WithFixture = schema.WithFixture
+	// WithForeignKeys enables creating foreign-key in schema DDL. This defaults to true.
+	WithForeignKeys = schema.WithForeignKeys
+)
+
+// Schema is the API for creating, migrating and dropping a schema.
+type Schema struct {
+	drv dialect.Driver
+}
+
+// NewSchema creates a new schema client.
+func NewSchema(drv dialect.Driver) *Schema { return &Schema{drv: drv} }
+
+// Create creates all schema resources.
+func (s *Schema) Create(ctx context.Context, opts ...schema.MigrateOption) error {
+	migrate, err := schema.NewMigrate(s.drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.Create(ctx, Tables...)
+}
+
+// WriteTo writes the schema changes to w instead of running them against the database.
+//
+// 	if err := client.Schema.WriteTo(context.Background(), os.Stdout); err != nil {
+//		log.Fatal(err)
+// 	}
+//
+func (s *Schema) WriteTo(ctx context.Context, w io.Writer, opts ...schema.MigrateOption) error {
+	drv := &schema.WriteDriver{
+		Writer: w,
+		Driver: s.drv,
+	}
+	migrate, err := schema.NewMigrate(drv, opts...)
+	if err != nil {
+		return fmt.Errorf("ent/migrate: %w", err)
+	}
+	return migrate.Create(ctx, Tables...)
+}

ent/migrate/schema.go

@@ -0,0 +1,46 @@
+// Code generated by entc, DO NOT EDIT.
+
+package migrate
+
+import (
+	"entgo.io/ent/dialect/sql/schema"
+	"entgo.io/ent/schema/field"
+)
+
+var (
+	// UsersColumns holds the columns for the "users" table.
+	UsersColumns = []*schema.Column{
+		{Name: "id", Type: field.TypeInt, Increment: true},
+		{Name: "user", Type: field.TypeString, Unique: true, Size: 7},
+		{Name: "chara", Type: field.TypeString, Nullable: true, Default: "ponta"},
+		{Name: "skill", Type: field.TypeInt, Nullable: true, Default: 7},
+		{Name: "hp", Type: field.TypeInt, Nullable: true, Default: 7},
+		{Name: "attack", Type: field.TypeInt, Nullable: true, Default: 8},
+		{Name: "defense", Type: field.TypeInt, Nullable: true, Default: 19},
+		{Name: "critical", Type: field.TypeInt, Nullable: true, Default: 7},
+		{Name: "battle", Type: field.TypeInt, Nullable: true, Default: 1},
+		{Name: "win", Type: field.TypeInt, Nullable: true, Default: 0},
+		{Name: "day", Type: field.TypeInt, Nullable: true, Default: 0},
+		{Name: "percentage", Type: field.TypeFloat64, Nullable: true, Default: 0},
+		{Name: "limit", Type: field.TypeBool, Nullable: true, Default: false},
+		{Name: "status", Type: field.TypeString, Nullable: true, Default: "normal"},
+		{Name: "comment", Type: field.TypeString, Nullable: true, Default: ""},
+		{Name: "created_at", Type: field.TypeTime, Nullable: true},
+		{Name: "next", Type: field.TypeString, Nullable: true, Default: "20220617"},
+		{Name: "updated_at", Type: field.TypeTime, Nullable: true},
+		{Name: "url", Type: field.TypeString, Nullable: true, Default: "https://syui.cf/api"},
+	}
+	// UsersTable holds the schema information for the "users" table.
+	UsersTable = &schema.Table{
+		Name:       "users",
+		Columns:    UsersColumns,
+		PrimaryKey: []*schema.Column{UsersColumns[0]},
+	}
+	// Tables holds all the tables in the schema.
+	Tables = []*schema.Table{
+		UsersTable,
+	}
+)
+
+func init() {
+}

ent/ogent/oas_cfg_gen.go

@@ -0,0 +1,165 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+// bufPool is pool of bytes.Buffer for encoding and decoding.
+var bufPool = &sync.Pool{
+	New: func() interface{} {
+		return new(bytes.Buffer)
+	},
+}
+
+// getBuf returns buffer from pool.
+func getBuf() *bytes.Buffer {
+	return bufPool.Get().(*bytes.Buffer)
+}
+
+// putBuf puts buffer to pool.
+func putBuf(b *bytes.Buffer) {
+	b.Reset()
+	bufPool.Put(b)
+}
+
+type config struct {
+	TracerProvider trace.TracerProvider
+	Tracer         trace.Tracer
+	MeterProvider  metric.MeterProvider
+	Meter          metric.Meter
+	Client         ht.Client
+	NotFound       http.HandlerFunc
+}
+
+func newConfig(opts ...Option) config {
+	cfg := config{
+		TracerProvider: otel.GetTracerProvider(),
+		MeterProvider:  metric.NewNoopMeterProvider(),
+		Client:         http.DefaultClient,
+		NotFound:       http.NotFound,
+	}
+	for _, opt := range opts {
+		opt.apply(&cfg)
+	}
+	cfg.Tracer = cfg.TracerProvider.Tracer(otelogen.Name,
+		trace.WithInstrumentationVersion(otelogen.SemVersion()),
+	)
+	cfg.Meter = cfg.MeterProvider.Meter(otelogen.Name)
+	return cfg
+}
+
+type Option interface {
+	apply(*config)
+}
+
+type optionFunc func(*config)
+
+func (o optionFunc) apply(c *config) {
+	o(c)
+}
+
+// WithTracerProvider specifies a tracer provider to use for creating a tracer.
+//
+// If none is specified, the global provider is used.
+func WithTracerProvider(provider trace.TracerProvider) Option {
+	return optionFunc(func(cfg *config) {
+		if provider != nil {
+			cfg.TracerProvider = provider
+		}
+	})
+}
+
+// WithMeterProvider specifies a meter provider to use for creating a meter.
+//
+// If none is specified, the metric.NewNoopMeterProvider is used.
+func WithMeterProvider(provider metric.MeterProvider) Option {
+	return optionFunc(func(cfg *config) {
+		if provider != nil {
+			cfg.MeterProvider = provider
+		}
+	})
+}
+
+// WithClient specifies http client to use.
+func WithClient(client ht.Client) Option {
+	return optionFunc(func(cfg *config) {
+		if client != nil {
+			cfg.Client = client
+		}
+	})
+}
+
+// WithNotFound specifies http handler to use.
+func WithNotFound(notFound http.HandlerFunc) Option {
+	return optionFunc(func(cfg *config) {
+		if notFound != nil {
+			cfg.NotFound = notFound
+		}
+	})
+}

ent/ogent/oas_client_gen.go

@@ -0,0 +1,564 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+// Client implements OAS client.
+type Client struct {
+	serverURL *url.URL
+	cfg       config
+	requests  metric.Int64Counter
+	errors    metric.Int64Counter
+	duration  metric.Int64Histogram
+}
+
+// NewClient initializes new Client defined by OAS.
+func NewClient(serverURL string, opts ...Option) (*Client, error) {
+	u, err := url.Parse(serverURL)
+	if err != nil {
+		return nil, err
+	}
+	c := &Client{
+		cfg:       newConfig(opts...),
+		serverURL: u,
+	}
+	if c.requests, err = c.cfg.Meter.NewInt64Counter(otelogen.ClientRequestCount); err != nil {
+		return nil, err
+	}
+	if c.errors, err = c.cfg.Meter.NewInt64Counter(otelogen.ClientErrorsCount); err != nil {
+		return nil, err
+	}
+	if c.duration, err = c.cfg.Meter.NewInt64Histogram(otelogen.ClientDuration); err != nil {
+		return nil, err
+	}
+	return c, nil
+}
+
+// CreateUsers invokes createUsers operation.
+//
+// Creates a new Users and persists it to storage.
+//
+// POST /users
+func (c *Client) CreateUsers(ctx context.Context, request CreateUsersReq) (res CreateUsersRes, err error) {
+	if err := func() error {
+		if err := request.Validate(); err != nil {
+			return err
+		}
+		return nil
+	}(); err != nil {
+		return res, errors.Wrap(err, "validate")
+	}
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("createUsers"),
+	}
+	ctx, span := c.cfg.Tracer.Start(ctx, "CreateUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindClient),
+	)
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			c.errors.Add(ctx, 1, otelAttrs...)
+		} else {
+			elapsedDuration := time.Since(startTime)
+			c.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+		}
+		span.End()
+	}()
+	c.requests.Add(ctx, 1, otelAttrs...)
+	var (
+		contentType string
+		reqBody     io.Reader
+	)
+	contentType = "application/json"
+	buf, err := encodeCreateUsersRequestJSON(request, span)
+	if err != nil {
+		return res, err
+	}
+	defer jx.PutEncoder(buf)
+	reqBody = bytes.NewReader(buf.Bytes())
+
+	u := uri.Clone(c.serverURL)
+	u.Path += "/users"
+
+	r := ht.NewRequest(ctx, "POST", u, reqBody)
+	defer ht.PutRequest(r)
+
+	r.Header.Set("Content-Type", contentType)
+
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	result, err := decodeCreateUsersResponse(resp, span)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}
+
+// DeleteUsers invokes deleteUsers operation.
+//
+// Deletes the Users with the requested ID.
+//
+// DELETE /users/{id}
+func (c *Client) DeleteUsers(ctx context.Context, params DeleteUsersParams) (res DeleteUsersRes, err error) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("deleteUsers"),
+	}
+	ctx, span := c.cfg.Tracer.Start(ctx, "DeleteUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindClient),
+	)
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			c.errors.Add(ctx, 1, otelAttrs...)
+		} else {
+			elapsedDuration := time.Since(startTime)
+			c.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+		}
+		span.End()
+	}()
+	c.requests.Add(ctx, 1, otelAttrs...)
+	u := uri.Clone(c.serverURL)
+	u.Path += "/users/"
+	{
+		// Encode "id" parameter.
+		e := uri.NewPathEncoder(uri.PathEncoderConfig{
+			Param:   "id",
+			Style:   uri.PathStyleSimple,
+			Explode: false,
+		})
+		if err := func() error {
+			return e.EncodeValue(conv.IntToString(params.ID))
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		u.Path += e.Result()
+	}
+
+	r := ht.NewRequest(ctx, "DELETE", u, nil)
+	defer ht.PutRequest(r)
+
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	result, err := decodeDeleteUsersResponse(resp, span)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}
+
+// DrawDone invokes drawDone operation.
+//
+// PUT /users/{id}/d
+func (c *Client) DrawDone(ctx context.Context, params DrawDoneParams) (res DrawDoneNoContent, err error) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("drawDone"),
+	}
+	ctx, span := c.cfg.Tracer.Start(ctx, "DrawDone",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindClient),
+	)
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			c.errors.Add(ctx, 1, otelAttrs...)
+		} else {
+			elapsedDuration := time.Since(startTime)
+			c.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+		}
+		span.End()
+	}()
+	c.requests.Add(ctx, 1, otelAttrs...)
+	u := uri.Clone(c.serverURL)
+	u.Path += "/users/"
+	{
+		// Encode "id" parameter.
+		e := uri.NewPathEncoder(uri.PathEncoderConfig{
+			Param:   "id",
+			Style:   uri.PathStyleSimple,
+			Explode: false,
+		})
+		if err := func() error {
+			return e.EncodeValue(conv.IntToString(params.ID))
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		u.Path += e.Result()
+	}
+	u.Path += "/d"
+
+	r := ht.NewRequest(ctx, "PUT", u, nil)
+	defer ht.PutRequest(r)
+
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	result, err := decodeDrawDoneResponse(resp, span)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}
+
+// DrawStart invokes drawStart operation.
+//
+// PATCH /users/{id}/start
+func (c *Client) DrawStart(ctx context.Context, params DrawStartParams) (res DrawStartNoContent, err error) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("drawStart"),
+	}
+	ctx, span := c.cfg.Tracer.Start(ctx, "DrawStart",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindClient),
+	)
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			c.errors.Add(ctx, 1, otelAttrs...)
+		} else {
+			elapsedDuration := time.Since(startTime)
+			c.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+		}
+		span.End()
+	}()
+	c.requests.Add(ctx, 1, otelAttrs...)
+	u := uri.Clone(c.serverURL)
+	u.Path += "/users/"
+	{
+		// Encode "id" parameter.
+		e := uri.NewPathEncoder(uri.PathEncoderConfig{
+			Param:   "id",
+			Style:   uri.PathStyleSimple,
+			Explode: false,
+		})
+		if err := func() error {
+			return e.EncodeValue(conv.IntToString(params.ID))
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		u.Path += e.Result()
+	}
+	u.Path += "/start"
+
+	r := ht.NewRequest(ctx, "PATCH", u, nil)
+	defer ht.PutRequest(r)
+
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	result, err := decodeDrawStartResponse(resp, span)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}
+
+// ListUsers invokes listUsers operation.
+//
+// List Users.
+//
+// GET /users
+func (c *Client) ListUsers(ctx context.Context, params ListUsersParams) (res ListUsersRes, err error) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("listUsers"),
+	}
+	ctx, span := c.cfg.Tracer.Start(ctx, "ListUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindClient),
+	)
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			c.errors.Add(ctx, 1, otelAttrs...)
+		} else {
+			elapsedDuration := time.Since(startTime)
+			c.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+		}
+		span.End()
+	}()
+	c.requests.Add(ctx, 1, otelAttrs...)
+	u := uri.Clone(c.serverURL)
+	u.Path += "/users"
+
+	q := u.Query()
+	{
+		// Encode "page" parameter.
+		e := uri.NewQueryEncoder(uri.QueryEncoderConfig{
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		})
+		if err := func() error {
+			if val, ok := params.Page.Get(); ok {
+				return e.EncodeValue(conv.IntToString(val))
+			}
+			return nil
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode query")
+		}
+		q["page"] = e.Result()
+	}
+	{
+		// Encode "itemsPerPage" parameter.
+		e := uri.NewQueryEncoder(uri.QueryEncoderConfig{
+			Style:   uri.QueryStyleForm,
+			Explode: true,
+		})
+		if err := func() error {
+			if val, ok := params.ItemsPerPage.Get(); ok {
+				return e.EncodeValue(conv.IntToString(val))
+			}
+			return nil
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode query")
+		}
+		q["itemsPerPage"] = e.Result()
+	}
+	u.RawQuery = q.Encode()
+
+	r := ht.NewRequest(ctx, "GET", u, nil)
+	defer ht.PutRequest(r)
+
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	result, err := decodeListUsersResponse(resp, span)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}
+
+// ReadUsers invokes readUsers operation.
+//
+// Finds the Users with the requested ID and returns it.
+//
+// GET /users/{id}
+func (c *Client) ReadUsers(ctx context.Context, params ReadUsersParams) (res ReadUsersRes, err error) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("readUsers"),
+	}
+	ctx, span := c.cfg.Tracer.Start(ctx, "ReadUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindClient),
+	)
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			c.errors.Add(ctx, 1, otelAttrs...)
+		} else {
+			elapsedDuration := time.Since(startTime)
+			c.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+		}
+		span.End()
+	}()
+	c.requests.Add(ctx, 1, otelAttrs...)
+	u := uri.Clone(c.serverURL)
+	u.Path += "/users/"
+	{
+		// Encode "id" parameter.
+		e := uri.NewPathEncoder(uri.PathEncoderConfig{
+			Param:   "id",
+			Style:   uri.PathStyleSimple,
+			Explode: false,
+		})
+		if err := func() error {
+			return e.EncodeValue(conv.IntToString(params.ID))
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		u.Path += e.Result()
+	}
+
+	r := ht.NewRequest(ctx, "GET", u, nil)
+	defer ht.PutRequest(r)
+
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	result, err := decodeReadUsersResponse(resp, span)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}
+
+// UpdateUsers invokes updateUsers operation.
+//
+// Updates a Users and persists changes to storage.
+//
+// PATCH /users/{id}
+func (c *Client) UpdateUsers(ctx context.Context, request UpdateUsersReq, params UpdateUsersParams) (res UpdateUsersRes, err error) {
+	if err := func() error {
+		if err := request.Validate(); err != nil {
+			return err
+		}
+		return nil
+	}(); err != nil {
+		return res, errors.Wrap(err, "validate")
+	}
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("updateUsers"),
+	}
+	ctx, span := c.cfg.Tracer.Start(ctx, "UpdateUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindClient),
+	)
+	defer func() {
+		if err != nil {
+			span.RecordError(err)
+			c.errors.Add(ctx, 1, otelAttrs...)
+		} else {
+			elapsedDuration := time.Since(startTime)
+			c.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+		}
+		span.End()
+	}()
+	c.requests.Add(ctx, 1, otelAttrs...)
+	var (
+		contentType string
+		reqBody     io.Reader
+	)
+	contentType = "application/json"
+	buf, err := encodeUpdateUsersRequestJSON(request, span)
+	if err != nil {
+		return res, err
+	}
+	defer jx.PutEncoder(buf)
+	reqBody = bytes.NewReader(buf.Bytes())
+
+	u := uri.Clone(c.serverURL)
+	u.Path += "/users/"
+	{
+		// Encode "id" parameter.
+		e := uri.NewPathEncoder(uri.PathEncoderConfig{
+			Param:   "id",
+			Style:   uri.PathStyleSimple,
+			Explode: false,
+		})
+		if err := func() error {
+			return e.EncodeValue(conv.IntToString(params.ID))
+		}(); err != nil {
+			return res, errors.Wrap(err, "encode path")
+		}
+		u.Path += e.Result()
+	}
+
+	r := ht.NewRequest(ctx, "PATCH", u, reqBody)
+	defer ht.PutRequest(r)
+
+	r.Header.Set("Content-Type", contentType)
+
+	resp, err := c.cfg.Client.Do(r)
+	if err != nil {
+		return res, errors.Wrap(err, "do request")
+	}
+	defer resp.Body.Close()
+
+	result, err := decodeUpdateUsersResponse(resp, span)
+	if err != nil {
+		return res, errors.Wrap(err, "decode response")
+	}
+
+	return result, nil
+}

ent/ogent/oas_defaults_gen.go

@@ -0,0 +1,71 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)

ent/ogent/oas_handlers_gen.go

@@ -0,0 +1,390 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+// HandleCreateUsersRequest handles createUsers operation.
+//
+// POST /users
+func (s *Server) handleCreateUsersRequest(args [0]string, w http.ResponseWriter, r *http.Request) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("createUsers"),
+	}
+	ctx, span := s.cfg.Tracer.Start(r.Context(), "CreateUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindServer),
+	)
+	s.requests.Add(ctx, 1, otelAttrs...)
+	defer span.End()
+
+	var err error
+	request, err := decodeCreateUsersRequest(r, span)
+	if err != nil {
+		s.badRequest(ctx, w, span, otelAttrs, err)
+		return
+	}
+
+	response, err := s.h.CreateUsers(ctx, request)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Internal")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		respondError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	if err := encodeCreateUsersResponse(response, w, span); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Response")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		return
+	}
+	span.SetStatus(codes.Ok, "Ok")
+	elapsedDuration := time.Since(startTime)
+	s.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+}
+
+// HandleDeleteUsersRequest handles deleteUsers operation.
+//
+// DELETE /users/{id}
+func (s *Server) handleDeleteUsersRequest(args [1]string, w http.ResponseWriter, r *http.Request) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("deleteUsers"),
+	}
+	ctx, span := s.cfg.Tracer.Start(r.Context(), "DeleteUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindServer),
+	)
+	s.requests.Add(ctx, 1, otelAttrs...)
+	defer span.End()
+
+	var err error
+	params, err := decodeDeleteUsersParams(args, r)
+	if err != nil {
+		s.badRequest(ctx, w, span, otelAttrs, err)
+		return
+	}
+
+	response, err := s.h.DeleteUsers(ctx, params)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Internal")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		respondError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	if err := encodeDeleteUsersResponse(response, w, span); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Response")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		return
+	}
+	span.SetStatus(codes.Ok, "Ok")
+	elapsedDuration := time.Since(startTime)
+	s.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+}
+
+// HandleDrawDoneRequest handles drawDone operation.
+//
+// PUT /users/{id}/d
+func (s *Server) handleDrawDoneRequest(args [1]string, w http.ResponseWriter, r *http.Request) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("drawDone"),
+	}
+	ctx, span := s.cfg.Tracer.Start(r.Context(), "DrawDone",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindServer),
+	)
+	s.requests.Add(ctx, 1, otelAttrs...)
+	defer span.End()
+
+	var err error
+	params, err := decodeDrawDoneParams(args, r)
+	if err != nil {
+		s.badRequest(ctx, w, span, otelAttrs, err)
+		return
+	}
+
+	response, err := s.h.DrawDone(ctx, params)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Internal")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		respondError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	if err := encodeDrawDoneResponse(response, w, span); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Response")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		return
+	}
+	span.SetStatus(codes.Ok, "Ok")
+	elapsedDuration := time.Since(startTime)
+	s.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+}
+
+// HandleDrawStartRequest handles drawStart operation.
+//
+// PATCH /users/{id}/start
+func (s *Server) handleDrawStartRequest(args [1]string, w http.ResponseWriter, r *http.Request) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("drawStart"),
+	}
+	ctx, span := s.cfg.Tracer.Start(r.Context(), "DrawStart",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindServer),
+	)
+	s.requests.Add(ctx, 1, otelAttrs...)
+	defer span.End()
+
+	var err error
+	params, err := decodeDrawStartParams(args, r)
+	if err != nil {
+		s.badRequest(ctx, w, span, otelAttrs, err)
+		return
+	}
+
+	response, err := s.h.DrawStart(ctx, params)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Internal")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		respondError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	if err := encodeDrawStartResponse(response, w, span); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Response")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		return
+	}
+	span.SetStatus(codes.Ok, "Ok")
+	elapsedDuration := time.Since(startTime)
+	s.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+}
+
+// HandleListUsersRequest handles listUsers operation.
+//
+// GET /users
+func (s *Server) handleListUsersRequest(args [0]string, w http.ResponseWriter, r *http.Request) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("listUsers"),
+	}
+	ctx, span := s.cfg.Tracer.Start(r.Context(), "ListUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindServer),
+	)
+	s.requests.Add(ctx, 1, otelAttrs...)
+	defer span.End()
+
+	var err error
+	params, err := decodeListUsersParams(args, r)
+	if err != nil {
+		s.badRequest(ctx, w, span, otelAttrs, err)
+		return
+	}
+
+	response, err := s.h.ListUsers(ctx, params)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Internal")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		respondError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	if err := encodeListUsersResponse(response, w, span); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Response")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		return
+	}
+	span.SetStatus(codes.Ok, "Ok")
+	elapsedDuration := time.Since(startTime)
+	s.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+}
+
+// HandleReadUsersRequest handles readUsers operation.
+//
+// GET /users/{id}
+func (s *Server) handleReadUsersRequest(args [1]string, w http.ResponseWriter, r *http.Request) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("readUsers"),
+	}
+	ctx, span := s.cfg.Tracer.Start(r.Context(), "ReadUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindServer),
+	)
+	s.requests.Add(ctx, 1, otelAttrs...)
+	defer span.End()
+
+	var err error
+	params, err := decodeReadUsersParams(args, r)
+	if err != nil {
+		s.badRequest(ctx, w, span, otelAttrs, err)
+		return
+	}
+
+	response, err := s.h.ReadUsers(ctx, params)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Internal")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		respondError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	if err := encodeReadUsersResponse(response, w, span); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Response")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		return
+	}
+	span.SetStatus(codes.Ok, "Ok")
+	elapsedDuration := time.Since(startTime)
+	s.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+}
+
+// HandleUpdateUsersRequest handles updateUsers operation.
+//
+// PATCH /users/{id}
+func (s *Server) handleUpdateUsersRequest(args [1]string, w http.ResponseWriter, r *http.Request) {
+	startTime := time.Now()
+	otelAttrs := []attribute.KeyValue{
+		otelogen.OperationID("updateUsers"),
+	}
+	ctx, span := s.cfg.Tracer.Start(r.Context(), "UpdateUsers",
+		trace.WithAttributes(otelAttrs...),
+		trace.WithSpanKind(trace.SpanKindServer),
+	)
+	s.requests.Add(ctx, 1, otelAttrs...)
+	defer span.End()
+
+	var err error
+	params, err := decodeUpdateUsersParams(args, r)
+	if err != nil {
+		s.badRequest(ctx, w, span, otelAttrs, err)
+		return
+	}
+	request, err := decodeUpdateUsersRequest(r, span)
+	if err != nil {
+		s.badRequest(ctx, w, span, otelAttrs, err)
+		return
+	}
+
+	response, err := s.h.UpdateUsers(ctx, request, params)
+	if err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Internal")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		respondError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	if err := encodeUpdateUsersResponse(response, w, span); err != nil {
+		span.RecordError(err)
+		span.SetStatus(codes.Error, "Response")
+		s.errors.Add(ctx, 1, otelAttrs...)
+		return
+	}
+	span.SetStatus(codes.Ok, "Ok")
+	elapsedDuration := time.Since(startTime)
+	s.duration.Record(ctx, elapsedDuration.Microseconds(), otelAttrs...)
+}
+
+func (s *Server) badRequest(ctx context.Context, w http.ResponseWriter, span trace.Span, otelAttrs []attribute.KeyValue, err error) {
+	span.RecordError(err)
+	span.SetStatus(codes.Error, "BadRequest")
+	s.errors.Add(ctx, 1, otelAttrs...)
+	respondError(w, http.StatusBadRequest, err)
+}
+
+func respondError(w http.ResponseWriter, code int, err error) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(code)
+	data, writeErr := json.Marshal(struct {
+		ErrorMessage string `json:"error_message"`
+	}{
+		ErrorMessage: err.Error(),
+	})
+	if writeErr == nil {
+		w.Write(data)
+	}
+}

ent/ogent/oas_interfaces_gen.go

@@ -0,0 +1,22 @@
+// Code generated by ogen, DO NOT EDIT.
+package ogent
+
+type CreateUsersRes interface {
+	createUsersRes()
+}
+
+type DeleteUsersRes interface {
+	deleteUsersRes()
+}
+
+type ListUsersRes interface {
+	listUsersRes()
+}
+
+type ReadUsersRes interface {
+	readUsersRes()
+}
+
+type UpdateUsersRes interface {
+	updateUsersRes()
+}

ent/ogent/oas_param_dec_gen.go

@@ -0,0 +1,339 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+func decodeDeleteUsersParams(args [1]string, r *http.Request) (DeleteUsersParams, error) {
+	var (
+		params DeleteUsersParams
+	)
+	// Decode path: id.
+	{
+		param := args[0]
+		if len(param) > 0 {
+			d := uri.NewPathDecoder(uri.PathDecoderConfig{
+				Param:   "id",
+				Value:   param,
+				Style:   uri.PathStyleSimple,
+				Explode: false,
+			})
+
+			if err := func() error {
+				s, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt(s)
+				if err != nil {
+					return err
+				}
+
+				params.ID = c
+				return nil
+			}(); err != nil {
+				return params, err
+			}
+		} else {
+			return params, errors.New("path: id: not specified")
+		}
+	}
+	return params, nil
+}
+
+func decodeDrawDoneParams(args [1]string, r *http.Request) (DrawDoneParams, error) {
+	var (
+		params DrawDoneParams
+	)
+	// Decode path: id.
+	{
+		param := args[0]
+		if len(param) > 0 {
+			d := uri.NewPathDecoder(uri.PathDecoderConfig{
+				Param:   "id",
+				Value:   param,
+				Style:   uri.PathStyleSimple,
+				Explode: false,
+			})
+
+			if err := func() error {
+				s, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt(s)
+				if err != nil {
+					return err
+				}
+
+				params.ID = c
+				return nil
+			}(); err != nil {
+				return params, err
+			}
+		} else {
+			return params, errors.New("path: id: not specified")
+		}
+	}
+	return params, nil
+}
+
+func decodeDrawStartParams(args [1]string, r *http.Request) (DrawStartParams, error) {
+	var (
+		params DrawStartParams
+	)
+	// Decode path: id.
+	{
+		param := args[0]
+		if len(param) > 0 {
+			d := uri.NewPathDecoder(uri.PathDecoderConfig{
+				Param:   "id",
+				Value:   param,
+				Style:   uri.PathStyleSimple,
+				Explode: false,
+			})
+
+			if err := func() error {
+				s, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt(s)
+				if err != nil {
+					return err
+				}
+
+				params.ID = c
+				return nil
+			}(); err != nil {
+				return params, err
+			}
+		} else {
+			return params, errors.New("path: id: not specified")
+		}
+	}
+	return params, nil
+}
+
+func decodeListUsersParams(args [0]string, r *http.Request) (ListUsersParams, error) {
+	var (
+		params    ListUsersParams
+		queryArgs = r.URL.Query()
+	)
+	// Decode query: page.
+	{
+		values, ok := queryArgs["page"]
+		if ok {
+			d := uri.NewQueryDecoder(uri.QueryDecoderConfig{
+				Values:  values,
+				Style:   uri.QueryStyleForm,
+				Explode: true,
+			})
+
+			if err := func() error {
+				var paramsDotPageVal int
+				if err := func() error {
+					s, err := d.DecodeValue()
+					if err != nil {
+						return err
+					}
+
+					c, err := conv.ToInt(s)
+					if err != nil {
+						return err
+					}
+
+					paramsDotPageVal = c
+					return nil
+				}(); err != nil {
+					return err
+				}
+				params.Page.SetTo(paramsDotPageVal)
+				return nil
+			}(); err != nil {
+				return params, errors.Wrap(err, "query: page: parse")
+			}
+		}
+	}
+	// Decode query: itemsPerPage.
+	{
+		values, ok := queryArgs["itemsPerPage"]
+		if ok {
+			d := uri.NewQueryDecoder(uri.QueryDecoderConfig{
+				Values:  values,
+				Style:   uri.QueryStyleForm,
+				Explode: true,
+			})
+
+			if err := func() error {
+				var paramsDotItemsPerPageVal int
+				if err := func() error {
+					s, err := d.DecodeValue()
+					if err != nil {
+						return err
+					}
+
+					c, err := conv.ToInt(s)
+					if err != nil {
+						return err
+					}
+
+					paramsDotItemsPerPageVal = c
+					return nil
+				}(); err != nil {
+					return err
+				}
+				params.ItemsPerPage.SetTo(paramsDotItemsPerPageVal)
+				return nil
+			}(); err != nil {
+				return params, errors.Wrap(err, "query: itemsPerPage: parse")
+			}
+		}
+	}
+	return params, nil
+}
+
+func decodeReadUsersParams(args [1]string, r *http.Request) (ReadUsersParams, error) {
+	var (
+		params ReadUsersParams
+	)
+	// Decode path: id.
+	{
+		param := args[0]
+		if len(param) > 0 {
+			d := uri.NewPathDecoder(uri.PathDecoderConfig{
+				Param:   "id",
+				Value:   param,
+				Style:   uri.PathStyleSimple,
+				Explode: false,
+			})
+
+			if err := func() error {
+				s, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt(s)
+				if err != nil {
+					return err
+				}
+
+				params.ID = c
+				return nil
+			}(); err != nil {
+				return params, err
+			}
+		} else {
+			return params, errors.New("path: id: not specified")
+		}
+	}
+	return params, nil
+}
+
+func decodeUpdateUsersParams(args [1]string, r *http.Request) (UpdateUsersParams, error) {
+	var (
+		params UpdateUsersParams
+	)
+	// Decode path: id.
+	{
+		param := args[0]
+		if len(param) > 0 {
+			d := uri.NewPathDecoder(uri.PathDecoderConfig{
+				Param:   "id",
+				Value:   param,
+				Style:   uri.PathStyleSimple,
+				Explode: false,
+			})
+
+			if err := func() error {
+				s, err := d.DecodeValue()
+				if err != nil {
+					return err
+				}
+
+				c, err := conv.ToInt(s)
+				if err != nil {
+					return err
+				}
+
+				params.ID = c
+				return nil
+			}(); err != nil {
+				return params, err
+			}
+		} else {
+			return params, errors.New("path: id: not specified")
+		}
+	}
+	return params, nil
+}

ent/ogent/oas_param_gen.go

@@ -0,0 +1,101 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+type DeleteUsersParams struct {
+	// ID of the Users.
+	ID int
+}
+
+type DrawDoneParams struct {
+	ID int
+}
+
+type DrawStartParams struct {
+	ID int
+}
+
+type ListUsersParams struct {
+	// What page to render.
+	Page OptInt
+	// Item count to render per page.
+	ItemsPerPage OptInt
+}
+
+type ReadUsersParams struct {
+	// ID of the Users.
+	ID int
+}
+
+type UpdateUsersParams struct {
+	// ID of the Users.
+	ID int
+}

ent/ogent/oas_req_dec_gen.go

@@ -0,0 +1,159 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+func decodeCreateUsersRequest(r *http.Request, span trace.Span) (req CreateUsersReq, err error) {
+	switch ct := r.Header.Get("Content-Type"); ct {
+	case "application/json":
+		if r.ContentLength == 0 {
+			return req, validate.ErrBodyRequired
+		}
+
+		var request CreateUsersReq
+		buf := getBuf()
+		defer putBuf(buf)
+		written, err := io.Copy(buf, r.Body)
+		if err != nil {
+			return req, err
+		}
+
+		if written == 0 {
+			return req, validate.ErrBodyRequired
+		}
+
+		d := jx.GetDecoder()
+		defer jx.PutDecoder(d)
+		d.ResetBytes(buf.Bytes())
+		if err := func() error {
+			if err := request.Decode(d); err != nil {
+				return err
+			}
+			return nil
+		}(); err != nil {
+			return req, errors.Wrap(err, "decode CreateUsers:application/json request")
+		}
+		if err := func() error {
+			if err := request.Validate(); err != nil {
+				return err
+			}
+			return nil
+		}(); err != nil {
+			return req, errors.Wrap(err, "validate CreateUsers request")
+		}
+		return request, nil
+	default:
+		return req, validate.InvalidContentType(ct)
+	}
+}
+
+func decodeUpdateUsersRequest(r *http.Request, span trace.Span) (req UpdateUsersReq, err error) {
+	switch ct := r.Header.Get("Content-Type"); ct {
+	case "application/json":
+		if r.ContentLength == 0 {
+			return req, validate.ErrBodyRequired
+		}
+
+		var request UpdateUsersReq
+		buf := getBuf()
+		defer putBuf(buf)
+		written, err := io.Copy(buf, r.Body)
+		if err != nil {
+			return req, err
+		}
+
+		if written == 0 {
+			return req, validate.ErrBodyRequired
+		}
+
+		d := jx.GetDecoder()
+		defer jx.PutDecoder(d)
+		d.ResetBytes(buf.Bytes())
+		if err := func() error {
+			if err := request.Decode(d); err != nil {
+				return err
+			}
+			return nil
+		}(); err != nil {
+			return req, errors.Wrap(err, "decode UpdateUsers:application/json request")
+		}
+		if err := func() error {
+			if err := request.Validate(); err != nil {
+				return err
+			}
+			return nil
+		}(); err != nil {
+			return req, errors.Wrap(err, "validate UpdateUsers request")
+		}
+		return request, nil
+	default:
+		return req, validate.InvalidContentType(ct)
+	}
+}

ent/ogent/oas_req_enc_gen.go

@@ -0,0 +1,87 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+func encodeCreateUsersRequestJSON(req CreateUsersReq, span trace.Span) (data *jx.Encoder, err error) {
+	e := jx.GetEncoder()
+
+	req.Encode(e)
+
+	return e, nil
+}
+
+func encodeUpdateUsersRequestJSON(req UpdateUsersReq, span trace.Span) (data *jx.Encoder, err error) {
+	e := jx.GetEncoder()
+
+	req.Encode(e)
+
+	return e, nil
+}

ent/ogent/oas_res_dec_gen.go

@@ -0,0 +1,747 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+func decodeCreateUsersResponse(resp *http.Response, span trace.Span) (res CreateUsersRes, err error) {
+	switch resp.StatusCode {
+	case 200:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response UsersCreate
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 400:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R400
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 409:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R409
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 500:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R500
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	default:
+		return res, validate.UnexpectedStatusCode(resp.StatusCode)
+	}
+}
+
+func decodeDeleteUsersResponse(resp *http.Response, span trace.Span) (res DeleteUsersRes, err error) {
+	switch resp.StatusCode {
+	case 204:
+		return &DeleteUsersNoContent{}, nil
+	case 400:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R400
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 404:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R404
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 409:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R409
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 500:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R500
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	default:
+		return res, validate.UnexpectedStatusCode(resp.StatusCode)
+	}
+}
+
+func decodeDrawDoneResponse(resp *http.Response, span trace.Span) (res DrawDoneNoContent, err error) {
+	switch resp.StatusCode {
+	case 204:
+		return DrawDoneNoContent{}, nil
+	default:
+		return res, validate.UnexpectedStatusCode(resp.StatusCode)
+	}
+}
+
+func decodeDrawStartResponse(resp *http.Response, span trace.Span) (res DrawStartNoContent, err error) {
+	switch resp.StatusCode {
+	case 204:
+		return DrawStartNoContent{}, nil
+	default:
+		return res, validate.UnexpectedStatusCode(resp.StatusCode)
+	}
+}
+
+func decodeListUsersResponse(resp *http.Response, span trace.Span) (res ListUsersRes, err error) {
+	switch resp.StatusCode {
+	case 200:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response ListUsersOKApplicationJSON
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 400:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R400
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 404:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R404
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 409:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R409
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 500:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R500
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	default:
+		return res, validate.UnexpectedStatusCode(resp.StatusCode)
+	}
+}
+
+func decodeReadUsersResponse(resp *http.Response, span trace.Span) (res ReadUsersRes, err error) {
+	switch resp.StatusCode {
+	case 200:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response UsersRead
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 400:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R400
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 404:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R404
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 409:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R409
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 500:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R500
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	default:
+		return res, validate.UnexpectedStatusCode(resp.StatusCode)
+	}
+}
+
+func decodeUpdateUsersResponse(resp *http.Response, span trace.Span) (res UpdateUsersRes, err error) {
+	switch resp.StatusCode {
+	case 200:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response UsersUpdate
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 400:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R400
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 404:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R404
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 409:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R409
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	case 500:
+		switch ct := resp.Header.Get("Content-Type"); ct {
+		case "application/json":
+			buf := getBuf()
+			defer putBuf(buf)
+			if _, err := io.Copy(buf, resp.Body); err != nil {
+				return res, err
+			}
+
+			d := jx.GetDecoder()
+			defer jx.PutDecoder(d)
+			d.ResetBytes(buf.Bytes())
+
+			var response R500
+			if err := func() error {
+				if err := response.Decode(d); err != nil {
+					return err
+				}
+				return nil
+			}(); err != nil {
+				return res, err
+			}
+
+			return &response, nil
+		default:
+			return res, validate.InvalidContentType(ct)
+		}
+	default:
+		return res, validate.UnexpectedStatusCode(resp.StatusCode)
+	}
+}

ent/ogent/oas_res_enc_gen.go

@@ -0,0 +1,395 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+func encodeCreateUsersResponse(response CreateUsersRes, w http.ResponseWriter, span trace.Span) error {
+	switch response := response.(type) {
+	case *UsersCreate:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(200)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R400:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(400)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R409:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(409)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R500:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(500)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	default:
+		return errors.Errorf("/users"+`: unexpected response type: %T`, response)
+	}
+}
+
+func encodeDeleteUsersResponse(response DeleteUsersRes, w http.ResponseWriter, span trace.Span) error {
+	switch response := response.(type) {
+	case *DeleteUsersNoContent:
+		w.WriteHeader(204)
+		return nil
+	case *R400:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(400)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R404:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(404)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R409:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(409)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R500:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(500)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	default:
+		return errors.Errorf("/users/{id}"+`: unexpected response type: %T`, response)
+	}
+}
+
+func encodeDrawDoneResponse(response DrawDoneNoContent, w http.ResponseWriter, span trace.Span) error {
+	w.WriteHeader(204)
+	return nil
+}
+
+func encodeDrawStartResponse(response DrawStartNoContent, w http.ResponseWriter, span trace.Span) error {
+	w.WriteHeader(204)
+	return nil
+}
+
+func encodeListUsersResponse(response ListUsersRes, w http.ResponseWriter, span trace.Span) error {
+	switch response := response.(type) {
+	case *ListUsersOKApplicationJSON:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(200)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R400:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(400)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R404:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(404)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R409:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(409)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R500:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(500)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	default:
+		return errors.Errorf("/users"+`: unexpected response type: %T`, response)
+	}
+}
+
+func encodeReadUsersResponse(response ReadUsersRes, w http.ResponseWriter, span trace.Span) error {
+	switch response := response.(type) {
+	case *UsersRead:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(200)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R400:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(400)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R404:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(404)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R409:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(409)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R500:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(500)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	default:
+		return errors.Errorf("/users/{id}"+`: unexpected response type: %T`, response)
+	}
+}
+
+func encodeUpdateUsersResponse(response UpdateUsersRes, w http.ResponseWriter, span trace.Span) error {
+	switch response := response.(type) {
+	case *UsersUpdate:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(200)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R400:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(400)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R404:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(404)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R409:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(409)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	case *R500:
+		w.Header().Set("Content-Type", "application/json")
+		w.WriteHeader(500)
+		e := jx.GetEncoder()
+		defer jx.PutEncoder(e)
+
+		response.Encode(e)
+		if _, err := e.WriteTo(w); err != nil {
+			return errors.Wrap(err, "write")
+		}
+
+		return nil
+	default:
+		return errors.Errorf("/users/{id}"+`: unexpected response type: %T`, response)
+	}
+}

ent/ogent/oas_router_gen.go

@@ -0,0 +1,467 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+func (s *Server) notFound(w http.ResponseWriter, r *http.Request) {
+	s.cfg.NotFound(w, r)
+}
+
+// ServeHTTP serves http request as defined by OpenAPI v3 specification,
+// calling handler that matches the path or returning not found error.
+func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	elem := r.URL.Path
+	if len(elem) == 0 {
+		s.notFound(w, r)
+		return
+	}
+	args := [1]string{}
+	// Static code generated router with unwrapped path search.
+	switch r.Method {
+	case "DELETE":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users/"
+			if l := len("/users/"); len(elem) >= l && elem[0:l] == "/users/" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			// Param: "id"
+			// Leaf parameter
+			args[0] = elem
+			elem = ""
+
+			if len(elem) == 0 {
+				// Leaf: DeleteUsers
+				s.handleDeleteUsersRequest([1]string{
+					args[0],
+				}, w, r)
+
+				return
+			}
+		}
+	case "GET":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users"
+			if l := len("/users"); len(elem) >= l && elem[0:l] == "/users" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			if len(elem) == 0 {
+				s.handleListUsersRequest([0]string{}, w, r)
+
+				return
+			}
+			switch elem[0] {
+			case '/': // Prefix: "/"
+				if l := len("/"); len(elem) >= l && elem[0:l] == "/" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				// Param: "id"
+				// Leaf parameter
+				args[0] = elem
+				elem = ""
+
+				if len(elem) == 0 {
+					// Leaf: ReadUsers
+					s.handleReadUsersRequest([1]string{
+						args[0],
+					}, w, r)
+
+					return
+				}
+			}
+		}
+	case "PATCH":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users/"
+			if l := len("/users/"); len(elem) >= l && elem[0:l] == "/users/" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			// Param: "id"
+			// Match until "/"
+			idx := strings.IndexByte(elem, '/')
+			if idx < 0 {
+				idx = len(elem)
+			}
+			args[0] = elem[:idx]
+			elem = elem[idx:]
+
+			if len(elem) == 0 {
+				s.handleUpdateUsersRequest([1]string{
+					args[0],
+				}, w, r)
+
+				return
+			}
+			switch elem[0] {
+			case '/': // Prefix: "/start"
+				if l := len("/start"); len(elem) >= l && elem[0:l] == "/start" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				if len(elem) == 0 {
+					// Leaf: DrawStart
+					s.handleDrawStartRequest([1]string{
+						args[0],
+					}, w, r)
+
+					return
+				}
+			}
+		}
+	case "POST":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users"
+			if l := len("/users"); len(elem) >= l && elem[0:l] == "/users" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			if len(elem) == 0 {
+				// Leaf: CreateUsers
+				s.handleCreateUsersRequest([0]string{}, w, r)
+
+				return
+			}
+		}
+	case "PUT":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users/"
+			if l := len("/users/"); len(elem) >= l && elem[0:l] == "/users/" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			// Param: "id"
+			// Match until "/"
+			idx := strings.IndexByte(elem, '/')
+			if idx < 0 {
+				idx = len(elem)
+			}
+			args[0] = elem[:idx]
+			elem = elem[idx:]
+
+			if len(elem) == 0 {
+				break
+			}
+			switch elem[0] {
+			case '/': // Prefix: "/d"
+				if l := len("/d"); len(elem) >= l && elem[0:l] == "/d" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				if len(elem) == 0 {
+					// Leaf: DrawDone
+					s.handleDrawDoneRequest([1]string{
+						args[0],
+					}, w, r)
+
+					return
+				}
+			}
+		}
+	}
+	s.notFound(w, r)
+}
+
+// Route is route object.
+type Route struct {
+	name  string
+	count int
+	args  [1]string
+}
+
+// OperationID returns OpenAPI operationId.
+func (r Route) OperationID() string {
+	return r.name
+}
+
+// Args returns parsed arguments.
+func (r Route) Args() []string {
+	return r.args[:r.count]
+}
+
+// FindRoute finds Route for given method and path.
+func (s *Server) FindRoute(method, path string) (r Route, _ bool) {
+	var (
+		args = [1]string{}
+		elem = path
+	)
+	r.args = args
+	if elem == "" {
+		return r, false
+	}
+
+	// Static code generated router with unwrapped path search.
+	switch method {
+	case "DELETE":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users/"
+			if l := len("/users/"); len(elem) >= l && elem[0:l] == "/users/" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			// Param: "id"
+			// Leaf parameter
+			args[0] = elem
+			elem = ""
+
+			if len(elem) == 0 {
+				// Leaf: DeleteUsers
+				r.name = "DeleteUsers"
+				r.args = args
+				r.count = 1
+				return r, true
+			}
+		}
+	case "GET":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users"
+			if l := len("/users"); len(elem) >= l && elem[0:l] == "/users" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			if len(elem) == 0 {
+				r.name = "ListUsers"
+				r.args = args
+				r.count = 0
+				return r, true
+			}
+			switch elem[0] {
+			case '/': // Prefix: "/"
+				if l := len("/"); len(elem) >= l && elem[0:l] == "/" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				// Param: "id"
+				// Leaf parameter
+				args[0] = elem
+				elem = ""
+
+				if len(elem) == 0 {
+					// Leaf: ReadUsers
+					r.name = "ReadUsers"
+					r.args = args
+					r.count = 1
+					return r, true
+				}
+			}
+		}
+	case "PATCH":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users/"
+			if l := len("/users/"); len(elem) >= l && elem[0:l] == "/users/" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			// Param: "id"
+			// Match until "/"
+			idx := strings.IndexByte(elem, '/')
+			if idx < 0 {
+				idx = len(elem)
+			}
+			args[0] = elem[:idx]
+			elem = elem[idx:]
+
+			if len(elem) == 0 {
+				r.name = "UpdateUsers"
+				r.args = args
+				r.count = 1
+				return r, true
+			}
+			switch elem[0] {
+			case '/': // Prefix: "/start"
+				if l := len("/start"); len(elem) >= l && elem[0:l] == "/start" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				if len(elem) == 0 {
+					// Leaf: DrawStart
+					r.name = "DrawStart"
+					r.args = args
+					r.count = 1
+					return r, true
+				}
+			}
+		}
+	case "POST":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users"
+			if l := len("/users"); len(elem) >= l && elem[0:l] == "/users" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			if len(elem) == 0 {
+				// Leaf: CreateUsers
+				r.name = "CreateUsers"
+				r.args = args
+				r.count = 0
+				return r, true
+			}
+		}
+	case "PUT":
+		if len(elem) == 0 {
+			break
+		}
+		switch elem[0] {
+		case '/': // Prefix: "/users/"
+			if l := len("/users/"); len(elem) >= l && elem[0:l] == "/users/" {
+				elem = elem[l:]
+			} else {
+				break
+			}
+
+			// Param: "id"
+			// Match until "/"
+			idx := strings.IndexByte(elem, '/')
+			if idx < 0 {
+				idx = len(elem)
+			}
+			args[0] = elem[:idx]
+			elem = elem[idx:]
+
+			if len(elem) == 0 {
+				break
+			}
+			switch elem[0] {
+			case '/': // Prefix: "/d"
+				if l := len("/d"); len(elem) >= l && elem[0:l] == "/d" {
+					elem = elem[l:]
+				} else {
+					break
+				}
+
+				if len(elem) == 0 {
+					// Leaf: DrawDone
+					r.name = "DrawDone"
+					r.args = args
+					r.count = 1
+					return r, true
+				}
+			}
+		}
+	}
+	return r, false
+}

ent/ogent/oas_schemas_gen.go

@@ -0,0 +1,497 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+type CreateUsersReq struct {
+	User       string      "json:\"user\""
+	Chara      OptString   "json:\"chara\""
+	Skill      OptInt      "json:\"skill\""
+	Hp         OptInt      "json:\"hp\""
+	Attack     OptInt      "json:\"attack\""
+	Defense    OptInt      "json:\"defense\""
+	Critical   OptInt      "json:\"critical\""
+	Battle     OptInt      "json:\"battle\""
+	Win        OptInt      "json:\"win\""
+	Day        OptInt      "json:\"day\""
+	Percentage OptFloat64  "json:\"percentage\""
+	Limit      OptBool     "json:\"limit\""
+	Status     OptString   "json:\"status\""
+	Comment    OptString   "json:\"comment\""
+	CreatedAt  OptDateTime "json:\"created_at\""
+	Next       OptString   "json:\"next\""
+	UpdatedAt  OptDateTime "json:\"updated_at\""
+	URL        OptString   "json:\"url\""
+}
+
+// DeleteUsersNoContent is response for DeleteUsers operation.
+type DeleteUsersNoContent struct{}
+
+func (*DeleteUsersNoContent) deleteUsersRes() {}
+
+// DrawDoneNoContent is response for DrawDone operation.
+type DrawDoneNoContent struct{}
+
+// DrawStartNoContent is response for DrawStart operation.
+type DrawStartNoContent struct{}
+
+type ListUsersOKApplicationJSON []UsersList
+
+func (ListUsersOKApplicationJSON) listUsersRes() {}
+
+// NewOptBool returns new OptBool with value set to v.
+func NewOptBool(v bool) OptBool {
+	return OptBool{
+		Value: v,
+		Set:   true,
+	}
+}
+
+// OptBool is optional bool.
+type OptBool struct {
+	Value bool
+	Set   bool
+}
+
+// IsSet returns true if OptBool was set.
+func (o OptBool) IsSet() bool { return o.Set }
+
+// Reset unsets value.
+func (o *OptBool) Reset() {
+	var v bool
+	o.Value = v
+	o.Set = false
+}
+
+// SetTo sets value to v.
+func (o *OptBool) SetTo(v bool) {
+	o.Set = true
+	o.Value = v
+}
+
+// Get returns value and boolean that denotes whether value was set.
+func (o OptBool) Get() (v bool, ok bool) {
+	if !o.Set {
+		return v, false
+	}
+	return o.Value, true
+}
+
+// Or returns value if set, or given parameter if does not.
+func (o OptBool) Or(d bool) bool {
+	if v, ok := o.Get(); ok {
+		return v
+	}
+	return d
+}
+
+// NewOptDateTime returns new OptDateTime with value set to v.
+func NewOptDateTime(v time.Time) OptDateTime {
+	return OptDateTime{
+		Value: v,
+		Set:   true,
+	}
+}
+
+// OptDateTime is optional time.Time.
+type OptDateTime struct {
+	Value time.Time
+	Set   bool
+}
+
+// IsSet returns true if OptDateTime was set.
+func (o OptDateTime) IsSet() bool { return o.Set }
+
+// Reset unsets value.
+func (o *OptDateTime) Reset() {
+	var v time.Time
+	o.Value = v
+	o.Set = false
+}
+
+// SetTo sets value to v.
+func (o *OptDateTime) SetTo(v time.Time) {
+	o.Set = true
+	o.Value = v
+}
+
+// Get returns value and boolean that denotes whether value was set.
+func (o OptDateTime) Get() (v time.Time, ok bool) {
+	if !o.Set {
+		return v, false
+	}
+	return o.Value, true
+}
+
+// Or returns value if set, or given parameter if does not.
+func (o OptDateTime) Or(d time.Time) time.Time {
+	if v, ok := o.Get(); ok {
+		return v
+	}
+	return d
+}
+
+// NewOptFloat64 returns new OptFloat64 with value set to v.
+func NewOptFloat64(v float64) OptFloat64 {
+	return OptFloat64{
+		Value: v,
+		Set:   true,
+	}
+}
+
+// OptFloat64 is optional float64.
+type OptFloat64 struct {
+	Value float64
+	Set   bool
+}
+
+// IsSet returns true if OptFloat64 was set.
+func (o OptFloat64) IsSet() bool { return o.Set }
+
+// Reset unsets value.
+func (o *OptFloat64) Reset() {
+	var v float64
+	o.Value = v
+	o.Set = false
+}
+
+// SetTo sets value to v.
+func (o *OptFloat64) SetTo(v float64) {
+	o.Set = true
+	o.Value = v
+}
+
+// Get returns value and boolean that denotes whether value was set.
+func (o OptFloat64) Get() (v float64, ok bool) {
+	if !o.Set {
+		return v, false
+	}
+	return o.Value, true
+}
+
+// Or returns value if set, or given parameter if does not.
+func (o OptFloat64) Or(d float64) float64 {
+	if v, ok := o.Get(); ok {
+		return v
+	}
+	return d
+}
+
+// NewOptInt returns new OptInt with value set to v.
+func NewOptInt(v int) OptInt {
+	return OptInt{
+		Value: v,
+		Set:   true,
+	}
+}
+
+// OptInt is optional int.
+type OptInt struct {
+	Value int
+	Set   bool
+}
+
+// IsSet returns true if OptInt was set.
+func (o OptInt) IsSet() bool { return o.Set }
+
+// Reset unsets value.
+func (o *OptInt) Reset() {
+	var v int
+	o.Value = v
+	o.Set = false
+}
+
+// SetTo sets value to v.
+func (o *OptInt) SetTo(v int) {
+	o.Set = true
+	o.Value = v
+}
+
+// Get returns value and boolean that denotes whether value was set.
+func (o OptInt) Get() (v int, ok bool) {
+	if !o.Set {
+		return v, false
+	}
+	return o.Value, true
+}
+
+// Or returns value if set, or given parameter if does not.
+func (o OptInt) Or(d int) int {
+	if v, ok := o.Get(); ok {
+		return v
+	}
+	return d
+}
+
+// NewOptString returns new OptString with value set to v.
+func NewOptString(v string) OptString {
+	return OptString{
+		Value: v,
+		Set:   true,
+	}
+}
+
+// OptString is optional string.
+type OptString struct {
+	Value string
+	Set   bool
+}
+
+// IsSet returns true if OptString was set.
+func (o OptString) IsSet() bool { return o.Set }
+
+// Reset unsets value.
+func (o *OptString) Reset() {
+	var v string
+	o.Value = v
+	o.Set = false
+}
+
+// SetTo sets value to v.
+func (o *OptString) SetTo(v string) {
+	o.Set = true
+	o.Value = v
+}
+
+// Get returns value and boolean that denotes whether value was set.
+func (o OptString) Get() (v string, ok bool) {
+	if !o.Set {
+		return v, false
+	}
+	return o.Value, true
+}
+
+// Or returns value if set, or given parameter if does not.
+func (o OptString) Or(d string) string {
+	if v, ok := o.Get(); ok {
+		return v
+	}
+	return d
+}
+
+type R400 struct {
+	Code   int    "json:\"code\""
+	Status string "json:\"status\""
+	Errors jx.Raw "json:\"errors\""
+}
+
+func (*R400) createUsersRes() {}
+func (*R400) deleteUsersRes() {}
+func (*R400) listUsersRes()   {}
+func (*R400) readUsersRes()   {}
+func (*R400) updateUsersRes() {}
+
+type R404 struct {
+	Code   int    "json:\"code\""
+	Status string "json:\"status\""
+	Errors jx.Raw "json:\"errors\""
+}
+
+func (*R404) deleteUsersRes() {}
+func (*R404) listUsersRes()   {}
+func (*R404) readUsersRes()   {}
+func (*R404) updateUsersRes() {}
+
+type R409 struct {
+	Code   int    "json:\"code\""
+	Status string "json:\"status\""
+	Errors jx.Raw "json:\"errors\""
+}
+
+func (*R409) createUsersRes() {}
+func (*R409) deleteUsersRes() {}
+func (*R409) listUsersRes()   {}
+func (*R409) readUsersRes()   {}
+func (*R409) updateUsersRes() {}
+
+type R500 struct {
+	Code   int    "json:\"code\""
+	Status string "json:\"status\""
+	Errors jx.Raw "json:\"errors\""
+}
+
+func (*R500) createUsersRes() {}
+func (*R500) deleteUsersRes() {}
+func (*R500) listUsersRes()   {}
+func (*R500) readUsersRes()   {}
+func (*R500) updateUsersRes() {}
+
+type UpdateUsersReq struct {
+	Hp         OptInt      "json:\"hp\""
+	Attack     OptInt      "json:\"attack\""
+	Defense    OptInt      "json:\"defense\""
+	Critical   OptInt      "json:\"critical\""
+	Battle     OptInt      "json:\"battle\""
+	Win        OptInt      "json:\"win\""
+	Day        OptInt      "json:\"day\""
+	Percentage OptFloat64  "json:\"percentage\""
+	Limit      OptBool     "json:\"limit\""
+	Comment    OptString   "json:\"comment\""
+	Next       OptString   "json:\"next\""
+	UpdatedAt  OptDateTime "json:\"updated_at\""
+}
+
+// Ref: #/components/schemas/UsersCreate
+type UsersCreate struct {
+	ID         int         "json:\"id\""
+	User       string      "json:\"user\""
+	Chara      OptString   "json:\"chara\""
+	Skill      OptInt      "json:\"skill\""
+	Hp         OptInt      "json:\"hp\""
+	Attack     OptInt      "json:\"attack\""
+	Defense    OptInt      "json:\"defense\""
+	Critical   OptInt      "json:\"critical\""
+	Battle     OptInt      "json:\"battle\""
+	Win        OptInt      "json:\"win\""
+	Day        OptInt      "json:\"day\""
+	Percentage OptFloat64  "json:\"percentage\""
+	Limit      OptBool     "json:\"limit\""
+	Status     OptString   "json:\"status\""
+	Comment    OptString   "json:\"comment\""
+	CreatedAt  OptDateTime "json:\"created_at\""
+	Next       OptString   "json:\"next\""
+	UpdatedAt  OptDateTime "json:\"updated_at\""
+	URL        OptString   "json:\"url\""
+}
+
+func (*UsersCreate) createUsersRes() {}
+
+// Ref: #/components/schemas/UsersList
+type UsersList struct {
+	ID         int         "json:\"id\""
+	User       string      "json:\"user\""
+	Chara      OptString   "json:\"chara\""
+	Skill      OptInt      "json:\"skill\""
+	Hp         OptInt      "json:\"hp\""
+	Attack     OptInt      "json:\"attack\""
+	Defense    OptInt      "json:\"defense\""
+	Critical   OptInt      "json:\"critical\""
+	Battle     OptInt      "json:\"battle\""
+	Win        OptInt      "json:\"win\""
+	Day        OptInt      "json:\"day\""
+	Percentage OptFloat64  "json:\"percentage\""
+	Limit      OptBool     "json:\"limit\""
+	Status     OptString   "json:\"status\""
+	Comment    OptString   "json:\"comment\""
+	CreatedAt  OptDateTime "json:\"created_at\""
+	Next       OptString   "json:\"next\""
+	UpdatedAt  OptDateTime "json:\"updated_at\""
+	URL        OptString   "json:\"url\""
+}
+
+// Ref: #/components/schemas/UsersRead
+type UsersRead struct {
+	ID         int         "json:\"id\""
+	User       string      "json:\"user\""
+	Chara      OptString   "json:\"chara\""
+	Skill      OptInt      "json:\"skill\""
+	Hp         OptInt      "json:\"hp\""
+	Attack     OptInt      "json:\"attack\""
+	Defense    OptInt      "json:\"defense\""
+	Critical   OptInt      "json:\"critical\""
+	Battle     OptInt      "json:\"battle\""
+	Win        OptInt      "json:\"win\""
+	Day        OptInt      "json:\"day\""
+	Percentage OptFloat64  "json:\"percentage\""
+	Limit      OptBool     "json:\"limit\""
+	Status     OptString   "json:\"status\""
+	Comment    OptString   "json:\"comment\""
+	CreatedAt  OptDateTime "json:\"created_at\""
+	Next       OptString   "json:\"next\""
+	UpdatedAt  OptDateTime "json:\"updated_at\""
+	URL        OptString   "json:\"url\""
+}
+
+func (*UsersRead) readUsersRes() {}
+
+// Ref: #/components/schemas/UsersUpdate
+type UsersUpdate struct {
+	ID         int         "json:\"id\""
+	User       string      "json:\"user\""
+	Chara      OptString   "json:\"chara\""
+	Skill      OptInt      "json:\"skill\""
+	Hp         OptInt      "json:\"hp\""
+	Attack     OptInt      "json:\"attack\""
+	Defense    OptInt      "json:\"defense\""
+	Critical   OptInt      "json:\"critical\""
+	Battle     OptInt      "json:\"battle\""
+	Win        OptInt      "json:\"win\""
+	Day        OptInt      "json:\"day\""
+	Percentage OptFloat64  "json:\"percentage\""
+	Limit      OptBool     "json:\"limit\""
+	Status     OptString   "json:\"status\""
+	Comment    OptString   "json:\"comment\""
+	CreatedAt  OptDateTime "json:\"created_at\""
+	Next       OptString   "json:\"next\""
+	UpdatedAt  OptDateTime "json:\"updated_at\""
+	URL        OptString   "json:\"url\""
+}
+
+func (*UsersUpdate) updateUsersRes() {}

ent/ogent/oas_security_gen.go

@@ -0,0 +1,71 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)

ent/ogent/oas_server_gen.go

@@ -0,0 +1,142 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+// Handler handles operations described by OpenAPI v3 specification.
+type Handler interface {
+	// CreateUsers implements createUsers operation.
+	//
+	// Creates a new Users and persists it to storage.
+	//
+	// POST /users
+	CreateUsers(ctx context.Context, req CreateUsersReq) (CreateUsersRes, error)
+	// DeleteUsers implements deleteUsers operation.
+	//
+	// Deletes the Users with the requested ID.
+	//
+	// DELETE /users/{id}
+	DeleteUsers(ctx context.Context, params DeleteUsersParams) (DeleteUsersRes, error)
+	// DrawDone implements drawDone operation.
+	//
+	// PUT /users/{id}/d
+	DrawDone(ctx context.Context, params DrawDoneParams) (DrawDoneNoContent, error)
+	// DrawStart implements drawStart operation.
+	//
+	// PATCH /users/{id}/start
+	DrawStart(ctx context.Context, params DrawStartParams) (DrawStartNoContent, error)
+	// ListUsers implements listUsers operation.
+	//
+	// List Users.
+	//
+	// GET /users
+	ListUsers(ctx context.Context, params ListUsersParams) (ListUsersRes, error)
+	// ReadUsers implements readUsers operation.
+	//
+	// Finds the Users with the requested ID and returns it.
+	//
+	// GET /users/{id}
+	ReadUsers(ctx context.Context, params ReadUsersParams) (ReadUsersRes, error)
+	// UpdateUsers implements updateUsers operation.
+	//
+	// Updates a Users and persists changes to storage.
+	//
+	// PATCH /users/{id}
+	UpdateUsers(ctx context.Context, req UpdateUsersReq, params UpdateUsersParams) (UpdateUsersRes, error)
+}
+
+// Server implements http server based on OpenAPI v3 specification and
+// calls Handler to handle requests.
+type Server struct {
+	h   Handler
+	cfg config
+
+	requests metric.Int64Counter
+	errors   metric.Int64Counter
+	duration metric.Int64Histogram
+}
+
+func NewServer(h Handler, opts ...Option) (*Server, error) {
+	s := &Server{
+		h:   h,
+		cfg: newConfig(opts...),
+	}
+	var err error
+	if s.requests, err = s.cfg.Meter.NewInt64Counter(otelogen.ServerRequestCount); err != nil {
+		return nil, err
+	}
+	if s.errors, err = s.cfg.Meter.NewInt64Counter(otelogen.ServerErrorsCount); err != nil {
+		return nil, err
+	}
+	if s.duration, err = s.cfg.Meter.NewInt64Histogram(otelogen.ServerDuration); err != nil {
+		return nil, err
+	}
+	return s, nil
+}

ent/ogent/oas_unimplemented_gen.go

@@ -0,0 +1,135 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+var _ Handler = UnimplementedHandler{}
+
+// UnimplementedHandler is no-op Handler which returns http.ErrNotImplemented.
+type UnimplementedHandler struct{}
+
+// CreateUsers implements createUsers operation.
+//
+// Creates a new Users and persists it to storage.
+//
+// POST /users
+func (UnimplementedHandler) CreateUsers(ctx context.Context, req CreateUsersReq) (r CreateUsersRes, _ error) {
+	return r, ht.ErrNotImplemented
+}
+
+// DeleteUsers implements deleteUsers operation.
+//
+// Deletes the Users with the requested ID.
+//
+// DELETE /users/{id}
+func (UnimplementedHandler) DeleteUsers(ctx context.Context, params DeleteUsersParams) (r DeleteUsersRes, _ error) {
+	return r, ht.ErrNotImplemented
+}
+
+// DrawDone implements drawDone operation.
+//
+// PUT /users/{id}/d
+func (UnimplementedHandler) DrawDone(ctx context.Context, params DrawDoneParams) (r DrawDoneNoContent, _ error) {
+	return r, ht.ErrNotImplemented
+}
+
+// DrawStart implements drawStart operation.
+//
+// PATCH /users/{id}/start
+func (UnimplementedHandler) DrawStart(ctx context.Context, params DrawStartParams) (r DrawStartNoContent, _ error) {
+	return r, ht.ErrNotImplemented
+}
+
+// ListUsers implements listUsers operation.
+//
+// List Users.
+//
+// GET /users
+func (UnimplementedHandler) ListUsers(ctx context.Context, params ListUsersParams) (r ListUsersRes, _ error) {
+	return r, ht.ErrNotImplemented
+}
+
+// ReadUsers implements readUsers operation.
+//
+// Finds the Users with the requested ID and returns it.
+//
+// GET /users/{id}
+func (UnimplementedHandler) ReadUsers(ctx context.Context, params ReadUsersParams) (r ReadUsersRes, _ error) {
+	return r, ht.ErrNotImplemented
+}
+
+// UpdateUsers implements updateUsers operation.
+//
+// Updates a Users and persists changes to storage.
+//
+// PATCH /users/{id}
+func (UnimplementedHandler) UpdateUsers(ctx context.Context, req UpdateUsersReq, params UpdateUsersParams) (r UpdateUsersRes, _ error) {
+	return r, ht.ErrNotImplemented
+}

ent/ogent/oas_validators_gen.go

@@ -0,0 +1,252 @@
+// Code generated by ogen, DO NOT EDIT.
+
+package ogent
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"io"
+	"math"
+	"math/big"
+	"math/bits"
+	"net"
+	"net/http"
+	"net/url"
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-faster/errors"
+	"github.com/go-faster/jx"
+	"github.com/google/uuid"
+	"github.com/ogen-go/ogen/conv"
+	ht "github.com/ogen-go/ogen/http"
+	"github.com/ogen-go/ogen/json"
+	"github.com/ogen-go/ogen/otelogen"
+	"github.com/ogen-go/ogen/uri"
+	"github.com/ogen-go/ogen/validate"
+	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/codes"
+	"go.opentelemetry.io/otel/metric"
+	"go.opentelemetry.io/otel/trace"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = sort.Ints
+	_ = http.MethodGet
+	_ = io.Copy
+	_ = json.Marshal
+	_ = bytes.NewReader
+	_ = strconv.ParseInt
+	_ = time.Time{}
+	_ = conv.ToInt32
+	_ = uuid.UUID{}
+	_ = uri.PathEncoder{}
+	_ = url.URL{}
+	_ = math.Mod
+	_ = bits.LeadingZeros64
+	_ = big.Rat{}
+	_ = validate.Int{}
+	_ = ht.NewRequest
+	_ = net.IP{}
+	_ = otelogen.Version
+	_ = attribute.KeyValue{}
+	_ = trace.TraceIDFromHex
+	_ = otel.GetTracerProvider
+	_ = metric.NewNoopMeterProvider
+	_ = regexp.MustCompile
+	_ = jx.Null
+	_ = sync.Pool{}
+	_ = codes.Unset
+)
+
+func (s CreateUsersReq) Validate() error {
+	var failures []validate.FieldError
+	if err := func() error {
+		if s.Percentage.Set {
+			if err := func() error {
+				if err := (validate.Float{}).Validate(float64(s.Percentage.Value)); err != nil {
+					return errors.Wrap(err, "float")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		}
+		return nil
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "percentage",
+			Error: err,
+		})
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}
+func (s ListUsersOKApplicationJSON) Validate() error {
+	if s == nil {
+		return errors.New("nil is invalid value")
+	}
+	var failures []validate.FieldError
+	for i, elem := range s {
+		if err := func() error {
+			if err := elem.Validate(); err != nil {
+				return err
+			}
+			return nil
+		}(); err != nil {
+			failures = append(failures, validate.FieldError{
+				Name:  fmt.Sprintf("[%d]", i),
+				Error: err,
+			})
+		}
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}
+
+func (s UpdateUsersReq) Validate() error {
+	var failures []validate.FieldError
+	if err := func() error {
+		if s.Percentage.Set {
+			if err := func() error {
+				if err := (validate.Float{}).Validate(float64(s.Percentage.Value)); err != nil {
+					return errors.Wrap(err, "float")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		}
+		return nil
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "percentage",
+			Error: err,
+		})
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}
+func (s UsersCreate) Validate() error {
+	var failures []validate.FieldError
+	if err := func() error {
+		if s.Percentage.Set {
+			if err := func() error {
+				if err := (validate.Float{}).Validate(float64(s.Percentage.Value)); err != nil {
+					return errors.Wrap(err, "float")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		}
+		return nil
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "percentage",
+			Error: err,
+		})
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}
+func (s UsersList) Validate() error {
+	var failures []validate.FieldError
+	if err := func() error {
+		if s.Percentage.Set {
+			if err := func() error {
+				if err := (validate.Float{}).Validate(float64(s.Percentage.Value)); err != nil {
+					return errors.Wrap(err, "float")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		}
+		return nil
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "percentage",
+			Error: err,
+		})
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}
+func (s UsersRead) Validate() error {
+	var failures []validate.FieldError
+	if err := func() error {
+		if s.Percentage.Set {
+			if err := func() error {
+				if err := (validate.Float{}).Validate(float64(s.Percentage.Value)); err != nil {
+					return errors.Wrap(err, "float")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		}
+		return nil
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "percentage",
+			Error: err,
+		})
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}
+func (s UsersUpdate) Validate() error {
+	var failures []validate.FieldError
+	if err := func() error {
+		if s.Percentage.Set {
+			if err := func() error {
+				if err := (validate.Float{}).Validate(float64(s.Percentage.Value)); err != nil {
+					return errors.Wrap(err, "float")
+				}
+				return nil
+			}(); err != nil {
+				return err
+			}
+		}
+		return nil
+		return nil
+	}(); err != nil {
+		failures = append(failures, validate.FieldError{
+			Name:  "percentage",
+			Error: err,
+		})
+	}
+	if len(failures) > 0 {
+		return &validate.Error{Fields: failures}
+	}
+	return nil
+}

ent/ogent/ogent.go

@@ -0,0 +1,274 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ogent
+
+import (
+	"context"
+	"net/http"
+
+	"t/ent"
+	"t/ent/users"
+
+	"github.com/go-faster/jx"
+)
+
+// OgentHandler implements the ogen generated Handler interface and uses Ent as data layer.
+type OgentHandler struct {
+	client *ent.Client
+}
+
+// NewOgentHandler returns a new OgentHandler.
+func NewOgentHandler(c *ent.Client) *OgentHandler { return &OgentHandler{c} }
+
+// rawError renders err as json string.
+func rawError(err error) jx.Raw {
+	var e jx.Encoder
+	e.Str(err.Error())
+	return e.Bytes()
+}
+
+// CreateUsers handles POST /users-slice requests.
+func (h *OgentHandler) CreateUsers(ctx context.Context, req CreateUsersReq) (CreateUsersRes, error) {
+	b := h.client.Users.Create()
+	// Add all fields.
+	b.SetUser(req.User)
+	if v, ok := req.Chara.Get(); ok {
+		b.SetChara(v)
+	}
+	if v, ok := req.Skill.Get(); ok {
+		b.SetSkill(v)
+	}
+	if v, ok := req.Hp.Get(); ok {
+		b.SetHp(v)
+	}
+	if v, ok := req.Attack.Get(); ok {
+		b.SetAttack(v)
+	}
+	if v, ok := req.Defense.Get(); ok {
+		b.SetDefense(v)
+	}
+	if v, ok := req.Critical.Get(); ok {
+		b.SetCritical(v)
+	}
+	if v, ok := req.Battle.Get(); ok {
+		b.SetBattle(v)
+	}
+	if v, ok := req.Win.Get(); ok {
+		b.SetWin(v)
+	}
+	if v, ok := req.Day.Get(); ok {
+		b.SetDay(v)
+	}
+	if v, ok := req.Percentage.Get(); ok {
+		b.SetPercentage(v)
+	}
+	if v, ok := req.Limit.Get(); ok {
+		b.SetLimit(v)
+	}
+	if v, ok := req.Status.Get(); ok {
+		b.SetStatus(v)
+	}
+	if v, ok := req.Comment.Get(); ok {
+		b.SetComment(v)
+	}
+	if v, ok := req.CreatedAt.Get(); ok {
+		b.SetCreatedAt(v)
+	}
+	if v, ok := req.Next.Get(); ok {
+		b.SetNext(v)
+	}
+	if v, ok := req.UpdatedAt.Get(); ok {
+		b.SetUpdatedAt(v)
+	}
+	if v, ok := req.URL.Get(); ok {
+		b.SetURL(v)
+	}
+	// Add all edges.
+	// Persist to storage.
+	e, err := b.Save(ctx)
+	if err != nil {
+		switch {
+		case ent.IsNotSingular(err):
+			return &R409{
+				Code:   http.StatusConflict,
+				Status: http.StatusText(http.StatusConflict),
+				Errors: rawError(err),
+			}, nil
+		case ent.IsConstraintError(err):
+			return &R409{
+				Code:   http.StatusConflict,
+				Status: http.StatusText(http.StatusConflict),
+				Errors: rawError(err),
+			}, nil
+		default:
+			// Let the server handle the error.
+			return nil, err
+		}
+	}
+	// Reload the entity to attach all eager-loaded edges.
+	q := h.client.Users.Query().Where(users.ID(e.ID))
+	e, err = q.Only(ctx)
+	if err != nil {
+		// This should never happen.
+		return nil, err
+	}
+	return NewUsersCreate(e), nil
+}
+
+// ReadUsers handles GET /users-slice/{id} requests.
+func (h *OgentHandler) ReadUsers(ctx context.Context, params ReadUsersParams) (ReadUsersRes, error) {
+	q := h.client.Users.Query().Where(users.IDEQ(params.ID))
+	e, err := q.Only(ctx)
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			return &R404{
+				Code:   http.StatusNotFound,
+				Status: http.StatusText(http.StatusNotFound),
+				Errors: rawError(err),
+			}, nil
+		case ent.IsNotSingular(err):
+			return &R409{
+				Code:   http.StatusConflict,
+				Status: http.StatusText(http.StatusConflict),
+				Errors: rawError(err),
+			}, nil
+		default:
+			// Let the server handle the error.
+			return nil, err
+		}
+	}
+	return NewUsersRead(e), nil
+}
+
+// UpdateUsers handles PATCH /users-slice/{id} requests.
+func (h *OgentHandler) UpdateUsers(ctx context.Context, req UpdateUsersReq, params UpdateUsersParams) (UpdateUsersRes, error) {
+	b := h.client.Users.UpdateOneID(params.ID)
+	// Add all fields.
+	if v, ok := req.Hp.Get(); ok {
+		b.SetHp(v)
+	}
+	if v, ok := req.Attack.Get(); ok {
+		b.SetAttack(v)
+	}
+	if v, ok := req.Defense.Get(); ok {
+		b.SetDefense(v)
+	}
+	if v, ok := req.Critical.Get(); ok {
+		b.SetCritical(v)
+	}
+	if v, ok := req.Battle.Get(); ok {
+		b.SetBattle(v)
+	}
+	if v, ok := req.Win.Get(); ok {
+		b.SetWin(v)
+	}
+	if v, ok := req.Day.Get(); ok {
+		b.SetDay(v)
+	}
+	if v, ok := req.Percentage.Get(); ok {
+		b.SetPercentage(v)
+	}
+	if v, ok := req.Limit.Get(); ok {
+		b.SetLimit(v)
+	}
+	if v, ok := req.Comment.Get(); ok {
+		b.SetComment(v)
+	}
+	if v, ok := req.Next.Get(); ok {
+		b.SetNext(v)
+	}
+	if v, ok := req.UpdatedAt.Get(); ok {
+		b.SetUpdatedAt(v)
+	}
+	// Add all edges.
+	// Persist to storage.
+	e, err := b.Save(ctx)
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			return &R404{
+				Code:   http.StatusNotFound,
+				Status: http.StatusText(http.StatusNotFound),
+				Errors: rawError(err),
+			}, nil
+		case ent.IsConstraintError(err):
+			return &R409{
+				Code:   http.StatusConflict,
+				Status: http.StatusText(http.StatusConflict),
+				Errors: rawError(err),
+			}, nil
+		default:
+			// Let the server handle the error.
+			return nil, err
+		}
+	}
+	// Reload the entity to attach all eager-loaded edges.
+	q := h.client.Users.Query().Where(users.ID(e.ID))
+	e, err = q.Only(ctx)
+	if err != nil {
+		// This should never happen.
+		return nil, err
+	}
+	return NewUsersUpdate(e), nil
+}
+
+// DeleteUsers handles DELETE /users-slice/{id} requests.
+func (h *OgentHandler) DeleteUsers(ctx context.Context, params DeleteUsersParams) (DeleteUsersRes, error) {
+	err := h.client.Users.DeleteOneID(params.ID).Exec(ctx)
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			return &R404{
+				Code:   http.StatusNotFound,
+				Status: http.StatusText(http.StatusNotFound),
+				Errors: rawError(err),
+			}, nil
+		case ent.IsConstraintError(err):
+			return &R409{
+				Code:   http.StatusConflict,
+				Status: http.StatusText(http.StatusConflict),
+				Errors: rawError(err),
+			}, nil
+		default:
+			// Let the server handle the error.
+			return nil, err
+		}
+	}
+	return new(DeleteUsersNoContent), nil
+
+}
+
+// ListUsers handles GET /users-slice requests.
+func (h *OgentHandler) ListUsers(ctx context.Context, params ListUsersParams) (ListUsersRes, error) {
+	q := h.client.Users.Query()
+	page := 1
+	if v, ok := params.Page.Get(); ok {
+		page = v
+	}
+	itemsPerPage := 30
+	if v, ok := params.ItemsPerPage.Get(); ok {
+		itemsPerPage = v
+	}
+	es, err := q.Limit(itemsPerPage).Offset((page - 1) * itemsPerPage).All(ctx)
+	if err != nil {
+		switch {
+		case ent.IsNotFound(err):
+			return &R404{
+				Code:   http.StatusNotFound,
+				Status: http.StatusText(http.StatusNotFound),
+				Errors: rawError(err),
+			}, nil
+		case ent.IsNotSingular(err):
+			return &R409{
+				Code:   http.StatusConflict,
+				Status: http.StatusText(http.StatusConflict),
+				Errors: rawError(err),
+			}, nil
+		default:
+			// Let the server handle the error.
+			return nil, err
+		}
+	}
+	return ListUsersOKApplicationJSON(NewUsersLists(es)), nil
+}

ent/ogent/responses.go

@@ -0,0 +1,185 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ogent
+
+import "t/ent"
+
+func NewUsersCreate(e *ent.Users) *UsersCreate {
+	if e == nil {
+		return nil
+	}
+	return &UsersCreate{
+		ID:         e.ID,
+		User:       e.User,
+		Chara:      NewOptString(e.Chara),
+		Skill:      NewOptInt(e.Skill),
+		Hp:         NewOptInt(e.Hp),
+		Attack:     NewOptInt(e.Attack),
+		Defense:    NewOptInt(e.Defense),
+		Critical:   NewOptInt(e.Critical),
+		Battle:     NewOptInt(e.Battle),
+		Win:        NewOptInt(e.Win),
+		Day:        NewOptInt(e.Day),
+		Percentage: NewOptFloat64(e.Percentage),
+		Limit:      NewOptBool(e.Limit),
+		Status:     NewOptString(e.Status),
+		Comment:    NewOptString(e.Comment),
+		CreatedAt:  NewOptDateTime(e.CreatedAt),
+		Next:       NewOptString(e.Next),
+		UpdatedAt:  NewOptDateTime(e.UpdatedAt),
+		URL:        NewOptString(e.URL),
+	}
+}
+
+func NewUsersCreates(es []*ent.Users) []UsersCreate {
+	if len(es) == 0 {
+		return nil
+	}
+	r := make([]UsersCreate, len(es))
+	for i, e := range es {
+		r[i] = NewUsersCreate(e).Elem()
+	}
+	return r
+}
+
+func (u *UsersCreate) Elem() UsersCreate {
+	if u != nil {
+		return UsersCreate{}
+	}
+	return *u
+}
+
+func NewUsersList(e *ent.Users) *UsersList {
+	if e == nil {
+		return nil
+	}
+	return &UsersList{
+		ID:         e.ID,
+		User:       e.User,
+		Chara:      NewOptString(e.Chara),
+		Skill:      NewOptInt(e.Skill),
+		Hp:         NewOptInt(e.Hp),
+		Attack:     NewOptInt(e.Attack),
+		Defense:    NewOptInt(e.Defense),
+		Critical:   NewOptInt(e.Critical),
+		Battle:     NewOptInt(e.Battle),
+		Win:        NewOptInt(e.Win),
+		Day:        NewOptInt(e.Day),
+		Percentage: NewOptFloat64(e.Percentage),
+		Limit:      NewOptBool(e.Limit),
+		Status:     NewOptString(e.Status),
+		Comment:    NewOptString(e.Comment),
+		CreatedAt:  NewOptDateTime(e.CreatedAt),
+		Next:       NewOptString(e.Next),
+		UpdatedAt:  NewOptDateTime(e.UpdatedAt),
+		URL:        NewOptString(e.URL),
+	}
+}
+
+func NewUsersLists(es []*ent.Users) []UsersList {
+	if len(es) == 0 {
+		return nil
+	}
+	r := make([]UsersList, len(es))
+	for i, e := range es {
+		r[i] = NewUsersList(e).Elem()
+	}
+	return r
+}
+
+func (u *UsersList) Elem() UsersList {
+	if u != nil {
+		return UsersList{}
+	}
+	return *u
+}
+
+func NewUsersRead(e *ent.Users) *UsersRead {
+	if e == nil {
+		return nil
+	}
+	return &UsersRead{
+		ID:         e.ID,
+		User:       e.User,
+		Chara:      NewOptString(e.Chara),
+		Skill:      NewOptInt(e.Skill),
+		Hp:         NewOptInt(e.Hp),
+		Attack:     NewOptInt(e.Attack),
+		Defense:    NewOptInt(e.Defense),
+		Critical:   NewOptInt(e.Critical),
+		Battle:     NewOptInt(e.Battle),
+		Win:        NewOptInt(e.Win),
+		Day:        NewOptInt(e.Day),
+		Percentage: NewOptFloat64(e.Percentage),
+		Limit:      NewOptBool(e.Limit),
+		Status:     NewOptString(e.Status),
+		Comment:    NewOptString(e.Comment),
+		CreatedAt:  NewOptDateTime(e.CreatedAt),
+		Next:       NewOptString(e.Next),
+		UpdatedAt:  NewOptDateTime(e.UpdatedAt),
+		URL:        NewOptString(e.URL),
+	}
+}
+
+func NewUsersReads(es []*ent.Users) []UsersRead {
+	if len(es) == 0 {
+		return nil
+	}
+	r := make([]UsersRead, len(es))
+	for i, e := range es {
+		r[i] = NewUsersRead(e).Elem()
+	}
+	return r
+}
+
+func (u *UsersRead) Elem() UsersRead {
+	if u != nil {
+		return UsersRead{}
+	}
+	return *u
+}
+
+func NewUsersUpdate(e *ent.Users) *UsersUpdate {
+	if e == nil {
+		return nil
+	}
+	return &UsersUpdate{
+		ID:         e.ID,
+		User:       e.User,
+		Chara:      NewOptString(e.Chara),
+		Skill:      NewOptInt(e.Skill),
+		Hp:         NewOptInt(e.Hp),
+		Attack:     NewOptInt(e.Attack),
+		Defense:    NewOptInt(e.Defense),
+		Critical:   NewOptInt(e.Critical),
+		Battle:     NewOptInt(e.Battle),
+		Win:        NewOptInt(e.Win),
+		Day:        NewOptInt(e.Day),
+		Percentage: NewOptFloat64(e.Percentage),
+		Limit:      NewOptBool(e.Limit),
+		Status:     NewOptString(e.Status),
+		Comment:    NewOptString(e.Comment),
+		CreatedAt:  NewOptDateTime(e.CreatedAt),
+		Next:       NewOptString(e.Next),
+		UpdatedAt:  NewOptDateTime(e.UpdatedAt),
+		URL:        NewOptString(e.URL),
+	}
+}
+
+func NewUsersUpdates(es []*ent.Users) []UsersUpdate {
+	if len(es) == 0 {
+		return nil
+	}
+	r := make([]UsersUpdate, len(es))
+	for i, e := range es {
+		r[i] = NewUsersUpdate(e).Elem()
+	}
+	return r
+}
+
+func (u *UsersUpdate) Elem() UsersUpdate {
+	if u != nil {
+		return UsersUpdate{}
+	}
+	return *u
+}

ent/openapi.json

@@ -0,0 +1,858 @@
+{
+  "openapi": "3.0.3",
+  "info": {
+    "title": "Ent Schema API",
+    "description": "This is an auto generated API description made out of an Ent schema definition",
+    "version": "0.1.0"
+  },
+  "paths": {
+    "/users": {
+      "get": {
+        "tags": [
+          "Users"
+        ],
+        "summary": "List Users",
+        "description": "List Users.",
+        "operationId": "listUsers",
+        "parameters": [
+          {
+            "name": "page",
+            "in": "query",
+            "description": "what page to render",
+            "schema": {
+              "type": "integer"
+            }
+          },
+          {
+            "name": "itemsPerPage",
+            "in": "query",
+            "description": "item count to render per page",
+            "schema": {
+              "type": "integer"
+            }
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "result Users list",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "type": "array",
+                  "items": {
+                    "$ref": "#/components/schemas/UsersList"
+                  }
+                }
+              }
+            }
+          },
+          "400": {
+            "$ref": "#/components/responses/400"
+          },
+          "404": {
+            "$ref": "#/components/responses/404"
+          },
+          "409": {
+            "$ref": "#/components/responses/409"
+          },
+          "500": {
+            "$ref": "#/components/responses/500"
+          }
+        }
+      },
+      "post": {
+        "tags": [
+          "Users"
+        ],
+        "summary": "Create a new Users",
+        "description": "Creates a new Users and persists it to storage.",
+        "operationId": "createUsers",
+        "requestBody": {
+          "description": "Users to create",
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "object",
+                "properties": {
+                  "user": {
+                    "type": "string"
+                  },
+                  "chara": {
+                    "type": "string"
+                  },
+                  "skill": {
+                    "type": "integer"
+                  },
+                  "hp": {
+                    "type": "integer"
+                  },
+                  "attack": {
+                    "type": "integer"
+                  },
+                  "defense": {
+                    "type": "integer"
+                  },
+                  "critical": {
+                    "type": "integer"
+                  },
+                  "battle": {
+                    "type": "integer"
+                  },
+                  "win": {
+                    "type": "integer"
+                  },
+                  "day": {
+                    "type": "integer"
+                  },
+                  "percentage": {
+                    "type": "number",
+                    "format": "double"
+                  },
+                  "limit": {
+                    "type": "boolean"
+                  },
+                  "status": {
+                    "type": "string"
+                  },
+                  "comment": {
+                    "type": "string"
+                  },
+                  "created_at": {
+                    "type": "string",
+                    "format": "date-time"
+                  },
+                  "next": {
+                    "type": "string"
+                  },
+                  "updated_at": {
+                    "type": "string",
+                    "format": "date-time"
+                  },
+                  "url": {
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "user"
+                ]
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "Users created",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UsersCreate"
+                }
+              }
+            }
+          },
+          "400": {
+            "$ref": "#/components/responses/400"
+          },
+          "409": {
+            "$ref": "#/components/responses/409"
+          },
+          "500": {
+            "$ref": "#/components/responses/500"
+          }
+        }
+      }
+    },
+    "/users/{id}": {
+      "get": {
+        "tags": [
+          "Users"
+        ],
+        "summary": "Find a Users by ID",
+        "description": "Finds the Users with the requested ID and returns it.",
+        "operationId": "readUsers",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "description": "ID of the Users",
+            "schema": {
+              "type": "integer"
+            },
+            "required": true
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Users with requested ID was found",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UsersRead"
+                }
+              }
+            }
+          },
+          "400": {
+            "$ref": "#/components/responses/400"
+          },
+          "404": {
+            "$ref": "#/components/responses/404"
+          },
+          "409": {
+            "$ref": "#/components/responses/409"
+          },
+          "500": {
+            "$ref": "#/components/responses/500"
+          }
+        }
+      },
+      "delete": {
+        "tags": [
+          "Users"
+        ],
+        "summary": "Deletes a Users by ID",
+        "description": "Deletes the Users with the requested ID.",
+        "operationId": "deleteUsers",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "description": "ID of the Users",
+            "schema": {
+              "type": "integer"
+            },
+            "required": true
+          }
+        ],
+        "responses": {
+          "204": {
+            "description": "Users with requested ID was deleted"
+          },
+          "400": {
+            "$ref": "#/components/responses/400"
+          },
+          "404": {
+            "$ref": "#/components/responses/404"
+          },
+          "409": {
+            "$ref": "#/components/responses/409"
+          },
+          "500": {
+            "$ref": "#/components/responses/500"
+          }
+        }
+      },
+      "patch": {
+        "tags": [
+          "Users"
+        ],
+        "summary": "Updates a Users",
+        "description": "Updates a Users and persists changes to storage.",
+        "operationId": "updateUsers",
+        "parameters": [
+          {
+            "name": "id",
+            "in": "path",
+            "description": "ID of the Users",
+            "schema": {
+              "type": "integer"
+            },
+            "required": true
+          }
+        ],
+        "requestBody": {
+          "description": "Users properties to update",
+          "content": {
+            "application/json": {
+              "schema": {
+                "type": "object",
+                "properties": {
+                  "hp": {
+                    "type": "integer"
+                  },
+                  "attack": {
+                    "type": "integer"
+                  },
+                  "defense": {
+                    "type": "integer"
+                  },
+                  "critical": {
+                    "type": "integer"
+                  },
+                  "battle": {
+                    "type": "integer"
+                  },
+                  "win": {
+                    "type": "integer"
+                  },
+                  "day": {
+                    "type": "integer"
+                  },
+                  "percentage": {
+                    "type": "number",
+                    "format": "double"
+                  },
+                  "limit": {
+                    "type": "boolean"
+                  },
+                  "comment": {
+                    "type": "string"
+                  },
+                  "next": {
+                    "type": "string"
+                  },
+                  "updated_at": {
+                    "type": "string",
+                    "format": "date-time"
+                  }
+                }
+              }
+            }
+          },
+          "required": true
+        },
+        "responses": {
+          "200": {
+            "description": "Users updated",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UsersUpdate"
+                }
+              }
+            }
+          },
+          "400": {
+            "$ref": "#/components/responses/400"
+          },
+          "404": {
+            "$ref": "#/components/responses/404"
+          },
+          "409": {
+            "$ref": "#/components/responses/409"
+          },
+          "500": {
+            "$ref": "#/components/responses/500"
+          }
+        }
+      }
+    },
+    "/users/{id}/d": {
+      "description": "Start an draw as done",
+      "put": {
+        "tags": [
+          "Users"
+        ],
+        "summary": "Draws a card item as done.",
+        "operationId": "drawDone",
+        "responses": {
+          "204": {
+            "description": "Item marked as done"
+          }
+        }
+      },
+      "parameters": [
+        {
+          "name": "id",
+          "in": "path",
+          "schema": {
+            "type": "integer"
+          },
+          "required": true
+        }
+      ]
+    },
+    "/users/{id}/start": {
+      "description": "Start an draw as done",
+      "patch": {
+        "tags": [
+          "Users"
+        ],
+        "summary": "Draws a card item as done.",
+        "operationId": "drawStart",
+        "responses": {
+          "204": {
+            "description": "Item marked as done"
+          }
+        }
+      },
+      "parameters": [
+        {
+          "name": "id",
+          "in": "path",
+          "schema": {
+            "type": "integer"
+          },
+          "required": true
+        }
+      ]
+    }
+  },
+  "components": {
+    "schemas": {
+      "Users": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "integer"
+          },
+          "user": {
+            "type": "string"
+          },
+          "chara": {
+            "type": "string"
+          },
+          "skill": {
+            "type": "integer"
+          },
+          "hp": {
+            "type": "integer"
+          },
+          "attack": {
+            "type": "integer"
+          },
+          "defense": {
+            "type": "integer"
+          },
+          "critical": {
+            "type": "integer"
+          },
+          "battle": {
+            "type": "integer"
+          },
+          "win": {
+            "type": "integer"
+          },
+          "day": {
+            "type": "integer"
+          },
+          "percentage": {
+            "type": "number",
+            "format": "double"
+          },
+          "limit": {
+            "type": "boolean"
+          },
+          "status": {
+            "type": "string"
+          },
+          "comment": {
+            "type": "string"
+          },
+          "created_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "next": {
+            "type": "string"
+          },
+          "updated_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "user"
+        ]
+      },
+      "UsersCreate": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "integer"
+          },
+          "user": {
+            "type": "string"
+          },
+          "chara": {
+            "type": "string"
+          },
+          "skill": {
+            "type": "integer"
+          },
+          "hp": {
+            "type": "integer"
+          },
+          "attack": {
+            "type": "integer"
+          },
+          "defense": {
+            "type": "integer"
+          },
+          "critical": {
+            "type": "integer"
+          },
+          "battle": {
+            "type": "integer"
+          },
+          "win": {
+            "type": "integer"
+          },
+          "day": {
+            "type": "integer"
+          },
+          "percentage": {
+            "type": "number",
+            "format": "double"
+          },
+          "limit": {
+            "type": "boolean"
+          },
+          "status": {
+            "type": "string"
+          },
+          "comment": {
+            "type": "string"
+          },
+          "created_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "next": {
+            "type": "string"
+          },
+          "updated_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "user"
+        ]
+      },
+      "UsersList": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "integer"
+          },
+          "user": {
+            "type": "string"
+          },
+          "chara": {
+            "type": "string"
+          },
+          "skill": {
+            "type": "integer"
+          },
+          "hp": {
+            "type": "integer"
+          },
+          "attack": {
+            "type": "integer"
+          },
+          "defense": {
+            "type": "integer"
+          },
+          "critical": {
+            "type": "integer"
+          },
+          "battle": {
+            "type": "integer"
+          },
+          "win": {
+            "type": "integer"
+          },
+          "day": {
+            "type": "integer"
+          },
+          "percentage": {
+            "type": "number",
+            "format": "double"
+          },
+          "limit": {
+            "type": "boolean"
+          },
+          "status": {
+            "type": "string"
+          },
+          "comment": {
+            "type": "string"
+          },
+          "created_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "next": {
+            "type": "string"
+          },
+          "updated_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "user"
+        ]
+      },
+      "UsersRead": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "integer"
+          },
+          "user": {
+            "type": "string"
+          },
+          "chara": {
+            "type": "string"
+          },
+          "skill": {
+            "type": "integer"
+          },
+          "hp": {
+            "type": "integer"
+          },
+          "attack": {
+            "type": "integer"
+          },
+          "defense": {
+            "type": "integer"
+          },
+          "critical": {
+            "type": "integer"
+          },
+          "battle": {
+            "type": "integer"
+          },
+          "win": {
+            "type": "integer"
+          },
+          "day": {
+            "type": "integer"
+          },
+          "percentage": {
+            "type": "number",
+            "format": "double"
+          },
+          "limit": {
+            "type": "boolean"
+          },
+          "status": {
+            "type": "string"
+          },
+          "comment": {
+            "type": "string"
+          },
+          "created_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "next": {
+            "type": "string"
+          },
+          "updated_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "user"
+        ]
+      },
+      "UsersUpdate": {
+        "type": "object",
+        "properties": {
+          "id": {
+            "type": "integer"
+          },
+          "user": {
+            "type": "string"
+          },
+          "chara": {
+            "type": "string"
+          },
+          "skill": {
+            "type": "integer"
+          },
+          "hp": {
+            "type": "integer"
+          },
+          "attack": {
+            "type": "integer"
+          },
+          "defense": {
+            "type": "integer"
+          },
+          "critical": {
+            "type": "integer"
+          },
+          "battle": {
+            "type": "integer"
+          },
+          "win": {
+            "type": "integer"
+          },
+          "day": {
+            "type": "integer"
+          },
+          "percentage": {
+            "type": "number",
+            "format": "double"
+          },
+          "limit": {
+            "type": "boolean"
+          },
+          "status": {
+            "type": "string"
+          },
+          "comment": {
+            "type": "string"
+          },
+          "created_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "next": {
+            "type": "string"
+          },
+          "updated_at": {
+            "type": "string",
+            "format": "date-time"
+          },
+          "url": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "id",
+          "user"
+        ]
+      }
+    },
+    "responses": {
+      "400": {
+        "description": "invalid input, data invalid",
+        "content": {
+          "application/json": {
+            "schema": {
+              "type": "object",
+              "properties": {
+                "code": {
+                  "type": "integer"
+                },
+                "status": {
+                  "type": "string"
+                },
+                "errors": {}
+              },
+              "required": [
+                "code",
+                "status"
+              ]
+            }
+          }
+        }
+      },
+      "403": {
+        "description": "insufficient permissions",
+        "content": {
+          "application/json": {
+            "schema": {
+              "type": "object",
+              "properties": {
+                "code": {
+                  "type": "integer"
+                },
+                "status": {
+                  "type": "string"
+                },
+                "errors": {}
+              },
+              "required": [
+                "code",
+                "status"
+              ]
+            }
+          }
+        }
+      },
+      "404": {
+        "description": "resource not found",
+        "content": {
+          "application/json": {
+            "schema": {
+              "type": "object",
+              "properties": {
+                "code": {
+                  "type": "integer"
+                },
+                "status": {
+                  "type": "string"
+                },
+                "errors": {}
+              },
+              "required": [
+                "code",
+                "status"
+              ]
+            }
+          }
+        }
+      },
+      "409": {
+        "description": "conflicting resources",
+        "content": {
+          "application/json": {
+            "schema": {
+              "type": "object",
+              "properties": {
+                "code": {
+                  "type": "integer"
+                },
+                "status": {
+                  "type": "string"
+                },
+                "errors": {}
+              },
+              "required": [
+                "code",
+                "status"
+              ]
+            }
+          }
+        }
+      },
+      "500": {
+        "description": "unexpected error",
+        "content": {
+          "application/json": {
+            "schema": {
+              "type": "object",
+              "properties": {
+                "code": {
+                  "type": "integer"
+                },
+                "status": {
+                  "type": "string"
+                },
+                "errors": {}
+              },
+              "required": [
+                "code",
+                "status"
+              ]
+            }
+          }
+        }
+      }
+    }
+  }
+}

ent/predicate/predicate.go

@@ -0,0 +1,10 @@
+// Code generated by entc, DO NOT EDIT.
+
+package predicate
+
+import (
+	"entgo.io/ent/dialect/sql"
+)
+
+// Users is the predicate function for users builders.
+type Users func(*sql.Selector)

ent/runtime.go

@@ -0,0 +1,104 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"t/ent/schema"
+	"t/ent/users"
+	"time"
+)
+
+// The init function reads all schema descriptors with runtime code
+// (default values, validators, hooks and policies) and stitches it
+// to their package variables.
+func init() {
+	usersFields := schema.Users{}.Fields()
+	_ = usersFields
+	// usersDescUser is the schema descriptor for user field.
+	usersDescUser := usersFields[0].Descriptor()
+	// users.UserValidator is a validator for the "user" field. It is called by the builders before save.
+	users.UserValidator = func() func(string) error {
+		validators := usersDescUser.Validators
+		fns := [...]func(string) error{
+			validators[0].(func(string) error),
+			validators[1].(func(string) error),
+			validators[2].(func(string) error),
+		}
+		return func(user string) error {
+			for _, fn := range fns {
+				if err := fn(user); err != nil {
+					return err
+				}
+			}
+			return nil
+		}
+	}()
+	// usersDescChara is the schema descriptor for chara field.
+	usersDescChara := usersFields[1].Descriptor()
+	// users.DefaultChara holds the default value on creation for the chara field.
+	users.DefaultChara = usersDescChara.Default.(string)
+	// usersDescSkill is the schema descriptor for skill field.
+	usersDescSkill := usersFields[2].Descriptor()
+	// users.DefaultSkill holds the default value on creation for the skill field.
+	users.DefaultSkill = usersDescSkill.Default.(int)
+	// usersDescHp is the schema descriptor for hp field.
+	usersDescHp := usersFields[3].Descriptor()
+	// users.DefaultHp holds the default value on creation for the hp field.
+	users.DefaultHp = usersDescHp.Default.(int)
+	// usersDescAttack is the schema descriptor for attack field.
+	usersDescAttack := usersFields[4].Descriptor()
+	// users.DefaultAttack holds the default value on creation for the attack field.
+	users.DefaultAttack = usersDescAttack.Default.(int)
+	// usersDescDefense is the schema descriptor for defense field.
+	usersDescDefense := usersFields[5].Descriptor()
+	// users.DefaultDefense holds the default value on creation for the defense field.
+	users.DefaultDefense = usersDescDefense.Default.(int)
+	// usersDescCritical is the schema descriptor for critical field.
+	usersDescCritical := usersFields[6].Descriptor()
+	// users.DefaultCritical holds the default value on creation for the critical field.
+	users.DefaultCritical = usersDescCritical.Default.(int)
+	// usersDescBattle is the schema descriptor for battle field.
+	usersDescBattle := usersFields[7].Descriptor()
+	// users.DefaultBattle holds the default value on creation for the battle field.
+	users.DefaultBattle = usersDescBattle.Default.(int)
+	// usersDescWin is the schema descriptor for win field.
+	usersDescWin := usersFields[8].Descriptor()
+	// users.DefaultWin holds the default value on creation for the win field.
+	users.DefaultWin = usersDescWin.Default.(int)
+	// usersDescDay is the schema descriptor for day field.
+	usersDescDay := usersFields[9].Descriptor()
+	// users.DefaultDay holds the default value on creation for the day field.
+	users.DefaultDay = usersDescDay.Default.(int)
+	// usersDescPercentage is the schema descriptor for percentage field.
+	usersDescPercentage := usersFields[10].Descriptor()
+	// users.DefaultPercentage holds the default value on creation for the percentage field.
+	users.DefaultPercentage = usersDescPercentage.Default.(float64)
+	// usersDescLimit is the schema descriptor for limit field.
+	usersDescLimit := usersFields[11].Descriptor()
+	// users.DefaultLimit holds the default value on creation for the limit field.
+	users.DefaultLimit = usersDescLimit.Default.(bool)
+	// usersDescStatus is the schema descriptor for status field.
+	usersDescStatus := usersFields[12].Descriptor()
+	// users.DefaultStatus holds the default value on creation for the status field.
+	users.DefaultStatus = usersDescStatus.Default.(string)
+	// usersDescComment is the schema descriptor for comment field.
+	usersDescComment := usersFields[13].Descriptor()
+	// users.DefaultComment holds the default value on creation for the comment field.
+	users.DefaultComment = usersDescComment.Default.(string)
+	// usersDescCreatedAt is the schema descriptor for created_at field.
+	usersDescCreatedAt := usersFields[14].Descriptor()
+	// users.DefaultCreatedAt holds the default value on creation for the created_at field.
+	users.DefaultCreatedAt = usersDescCreatedAt.Default.(func() time.Time)
+	// usersDescNext is the schema descriptor for next field.
+	usersDescNext := usersFields[15].Descriptor()
+	// users.DefaultNext holds the default value on creation for the next field.
+	users.DefaultNext = usersDescNext.Default.(string)
+	// usersDescUpdatedAt is the schema descriptor for updated_at field.
+	usersDescUpdatedAt := usersFields[16].Descriptor()
+	// users.DefaultUpdatedAt holds the default value on creation for the updated_at field.
+	users.DefaultUpdatedAt = usersDescUpdatedAt.Default.(func() time.Time)
+	// usersDescURL is the schema descriptor for url field.
+	usersDescURL := usersFields[17].Descriptor()
+	// users.DefaultURL holds the default value on creation for the url field.
+	users.DefaultURL = usersDescURL.Default.(string)
+}

ent/runtime/runtime.go

@@ -0,0 +1,10 @@
+// Code generated by entc, DO NOT EDIT.
+
+package runtime
+
+// The schema-stitching logic is generated in t/ent/runtime.go
+
+const (
+	Version = "v0.10.0"                                         // Version of ent codegen.
+	Sum     = "h1:9cBomE1fh+WX34DPYQL7tDNAIvhKa3tXvwxuLyhYCMo=" // Sum of ent codegen.
+)

ent/schema/users.go

@@ -0,0 +1,172 @@
+package schema
+
+import (
+	"time"
+	"regexp"
+	"entgo.io/ent"
+	"math/rand"
+	"entgo.io/ent/schema/field"
+	"github.com/kyokomi/lottery"
+)
+
+type Users struct {
+	ent.Schema
+}
+
+func Random(i int) (l int){
+	rand.Seed(time.Now().UnixNano())
+	l = rand.Intn(20)
+	for l == 0 {
+		l = rand.Intn(20)
+	}
+	return
+}
+
+func Kira(i int) (l bool){
+	lot := lottery.New(rand.New(rand.NewSource(time.Now().UnixNano())))
+	if lot.Lot(i) {
+		l = true
+	} else {
+		l = false
+	}
+	return
+}
+
+var jst,err = time.LoadLocation("Asia/Tokyo")
+
+var a = Random(4)
+var d = Random(20)
+var h = Random(20)
+var k = Random(20)
+var s = Random(20)
+var c = Random(20)
+var battle = 2
+
+func StatusR()(status string){
+	if d == 1 {
+		var status = "super"
+		return status
+	} else {
+		var status = "normal"
+		return status
+	}
+	return
+}
+
+func CharaR()(chara string){
+if a == 1 {
+	var chara = "drai"
+return chara
+} else if a == 2 {
+	var chara = "octkat"
+return chara
+} else if a == 3 {
+	var chara = "kyosuke"
+return chara
+} else {
+	var chara = "ponta"
+return chara
+}
+return
+}
+
+func Nextime() (tt string){
+ t := time.Now().Add(time.Hour * 24 * 1).In(jst)
+	tt = t.Format("20060102")
+	return
+}
+
+func (Users) Fields() []ent.Field {
+	return []ent.Field{
+
+		field.String("user").
+		NotEmpty().
+		Immutable().
+		MaxLen(7).
+		Match(regexp.MustCompile("[a-z]+$")).
+		Unique(),
+
+		field.String("chara").
+		Immutable().
+		Default(CharaR()).
+		Optional(),
+
+		field.Int("skill").
+		Immutable().
+		Optional().
+		Default(k),
+
+		field.Int("hp").
+		Optional().
+		Default(h),
+
+		field.Int("attack").
+		Optional().
+		Default(a),
+
+		field.Int("defense").
+		Optional().
+		Default(d),
+
+		field.Int("critical").
+		Optional().
+		Default(c),
+
+		field.Int("battle").
+		Optional().
+		Default(1),
+
+		field.Int("win").
+		Optional().
+		Default(0),
+
+		field.Int("day").
+		Optional().
+		Default(0),
+
+		field.Float("percentage").
+		Optional().
+		Default(0),
+
+		field.Bool("limit").
+		Optional().
+		Default(false),
+
+		field.String("status").
+		Immutable().
+		Optional().
+		Default(StatusR()),
+
+		field.String("comment").
+		Optional().
+		Default(""),
+
+		field.Time("created_at").
+		Immutable().
+		Optional().
+		Default(func() time.Time {
+			return time.Now().In(jst)
+		}),
+
+		field.String("next").
+		Default(Nextime()).
+		Optional(),
+
+		field.Time("updated_at").
+		Optional().
+		Default(func() time.Time {
+			return time.Now().In(jst)
+		}),
+
+		field.String("url").
+		Immutable().
+		Optional().
+		Default("https://syui.cf/api"),
+	}
+
+}
+
+func (Users) Edges() []ent.Edge {
+	return []ent.Edge{}
+}
+

ent/tx.go

@@ -0,0 +1,210 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"sync"
+
+	"entgo.io/ent/dialect"
+)
+
+// Tx is a transactional client that is created by calling Client.Tx().
+type Tx struct {
+	config
+	// Users is the client for interacting with the Users builders.
+	Users *UsersClient
+
+	// lazily loaded.
+	client     *Client
+	clientOnce sync.Once
+
+	// completion callbacks.
+	mu         sync.Mutex
+	onCommit   []CommitHook
+	onRollback []RollbackHook
+
+	// ctx lives for the life of the transaction. It is
+	// the same context used by the underlying connection.
+	ctx context.Context
+}
+
+type (
+	// Committer is the interface that wraps the Commit method.
+	Committer interface {
+		Commit(context.Context, *Tx) error
+	}
+
+	// The CommitFunc type is an adapter to allow the use of ordinary
+	// function as a Committer. If f is a function with the appropriate
+	// signature, CommitFunc(f) is a Committer that calls f.
+	CommitFunc func(context.Context, *Tx) error
+
+	// CommitHook defines the "commit middleware". A function that gets a Committer
+	// and returns a Committer. For example:
+	//
+	//	hook := func(next ent.Committer) ent.Committer {
+	//		return ent.CommitFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Commit(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	CommitHook func(Committer) Committer
+)
+
+// Commit calls f(ctx, m).
+func (f CommitFunc) Commit(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Commit commits the transaction.
+func (tx *Tx) Commit() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Committer = CommitFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Commit()
+	})
+	tx.mu.Lock()
+	hooks := append([]CommitHook(nil), tx.onCommit...)
+	tx.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Commit(tx.ctx, tx)
+}
+
+// OnCommit adds a hook to call on commit.
+func (tx *Tx) OnCommit(f CommitHook) {
+	tx.mu.Lock()
+	defer tx.mu.Unlock()
+	tx.onCommit = append(tx.onCommit, f)
+}
+
+type (
+	// Rollbacker is the interface that wraps the Rollback method.
+	Rollbacker interface {
+		Rollback(context.Context, *Tx) error
+	}
+
+	// The RollbackFunc type is an adapter to allow the use of ordinary
+	// function as a Rollbacker. If f is a function with the appropriate
+	// signature, RollbackFunc(f) is a Rollbacker that calls f.
+	RollbackFunc func(context.Context, *Tx) error
+
+	// RollbackHook defines the "rollback middleware". A function that gets a Rollbacker
+	// and returns a Rollbacker. For example:
+	//
+	//	hook := func(next ent.Rollbacker) ent.Rollbacker {
+	//		return ent.RollbackFunc(func(ctx context.Context, tx *ent.Tx) error {
+	//			// Do some stuff before.
+	//			if err := next.Rollback(ctx, tx); err != nil {
+	//				return err
+	//			}
+	//			// Do some stuff after.
+	//			return nil
+	//		})
+	//	}
+	//
+	RollbackHook func(Rollbacker) Rollbacker
+)
+
+// Rollback calls f(ctx, m).
+func (f RollbackFunc) Rollback(ctx context.Context, tx *Tx) error {
+	return f(ctx, tx)
+}
+
+// Rollback rollbacks the transaction.
+func (tx *Tx) Rollback() error {
+	txDriver := tx.config.driver.(*txDriver)
+	var fn Rollbacker = RollbackFunc(func(context.Context, *Tx) error {
+		return txDriver.tx.Rollback()
+	})
+	tx.mu.Lock()
+	hooks := append([]RollbackHook(nil), tx.onRollback...)
+	tx.mu.Unlock()
+	for i := len(hooks) - 1; i >= 0; i-- {
+		fn = hooks[i](fn)
+	}
+	return fn.Rollback(tx.ctx, tx)
+}
+
+// OnRollback adds a hook to call on rollback.
+func (tx *Tx) OnRollback(f RollbackHook) {
+	tx.mu.Lock()
+	defer tx.mu.Unlock()
+	tx.onRollback = append(tx.onRollback, f)
+}
+
+// Client returns a Client that binds to current transaction.
+func (tx *Tx) Client() *Client {
+	tx.clientOnce.Do(func() {
+		tx.client = &Client{config: tx.config}
+		tx.client.init()
+	})
+	return tx.client
+}
+
+func (tx *Tx) init() {
+	tx.Users = NewUsersClient(tx.config)
+}
+
+// txDriver wraps the given dialect.Tx with a nop dialect.Driver implementation.
+// The idea is to support transactions without adding any extra code to the builders.
+// When a builder calls to driver.Tx(), it gets the same dialect.Tx instance.
+// Commit and Rollback are nop for the internal builders and the user must call one
+// of them in order to commit or rollback the transaction.
+//
+// If a closed transaction is embedded in one of the generated entities, and the entity
+// applies a query, for example: Users.QueryXXX(), the query will be executed
+// through the driver which created this transaction.
+//
+// Note that txDriver is not goroutine safe.
+type txDriver struct {
+	// the driver we started the transaction from.
+	drv dialect.Driver
+	// tx is the underlying transaction.
+	tx dialect.Tx
+}
+
+// newTx creates a new transactional driver.
+func newTx(ctx context.Context, drv dialect.Driver) (*txDriver, error) {
+	tx, err := drv.Tx(ctx)
+	if err != nil {
+		return nil, err
+	}
+	return &txDriver{tx: tx, drv: drv}, nil
+}
+
+// Tx returns the transaction wrapper (txDriver) to avoid Commit or Rollback calls
+// from the internal builders. Should be called only by the internal builders.
+func (tx *txDriver) Tx(context.Context) (dialect.Tx, error) { return tx, nil }
+
+// Dialect returns the dialect of the driver we started the transaction from.
+func (tx *txDriver) Dialect() string { return tx.drv.Dialect() }
+
+// Close is a nop close.
+func (*txDriver) Close() error { return nil }
+
+// Commit is a nop commit for the internal builders.
+// User must call `Tx.Commit` in order to commit the transaction.
+func (*txDriver) Commit() error { return nil }
+
+// Rollback is a nop rollback for the internal builders.
+// User must call `Tx.Rollback` in order to rollback the transaction.
+func (*txDriver) Rollback() error { return nil }
+
+// Exec calls tx.Exec.
+func (tx *txDriver) Exec(ctx context.Context, query string, args, v interface{}) error {
+	return tx.tx.Exec(ctx, query, args, v)
+}
+
+// Query calls tx.Query.
+func (tx *txDriver) Query(ctx context.Context, query string, args, v interface{}) error {
+	return tx.tx.Query(ctx, query, args, v)
+}
+
+var _ dialect.Driver = (*txDriver)(nil)

ent/users.go

@@ -0,0 +1,276 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"fmt"
+	"strings"
+	"t/ent/users"
+	"time"
+
+	"entgo.io/ent/dialect/sql"
+)
+
+// Users is the model entity for the Users schema.
+type Users struct {
+	config `json:"-"`
+	// ID of the ent.
+	ID int `json:"id,omitempty"`
+	// User holds the value of the "user" field.
+	User string `json:"user,omitempty"`
+	// Chara holds the value of the "chara" field.
+	Chara string `json:"chara,omitempty"`
+	// Skill holds the value of the "skill" field.
+	Skill int `json:"skill,omitempty"`
+	// Hp holds the value of the "hp" field.
+	Hp int `json:"hp,omitempty"`
+	// Attack holds the value of the "attack" field.
+	Attack int `json:"attack,omitempty"`
+	// Defense holds the value of the "defense" field.
+	Defense int `json:"defense,omitempty"`
+	// Critical holds the value of the "critical" field.
+	Critical int `json:"critical,omitempty"`
+	// Battle holds the value of the "battle" field.
+	Battle int `json:"battle,omitempty"`
+	// Win holds the value of the "win" field.
+	Win int `json:"win,omitempty"`
+	// Day holds the value of the "day" field.
+	Day int `json:"day,omitempty"`
+	// Percentage holds the value of the "percentage" field.
+	Percentage float64 `json:"percentage,omitempty"`
+	// Limit holds the value of the "limit" field.
+	Limit bool `json:"limit,omitempty"`
+	// Status holds the value of the "status" field.
+	Status string `json:"status,omitempty"`
+	// Comment holds the value of the "comment" field.
+	Comment string `json:"comment,omitempty"`
+	// CreatedAt holds the value of the "created_at" field.
+	CreatedAt time.Time `json:"created_at,omitempty"`
+	// Next holds the value of the "next" field.
+	Next string `json:"next,omitempty"`
+	// UpdatedAt holds the value of the "updated_at" field.
+	UpdatedAt time.Time `json:"updated_at,omitempty"`
+	// URL holds the value of the "url" field.
+	URL string `json:"url,omitempty"`
+}
+
+// scanValues returns the types for scanning values from sql.Rows.
+func (*Users) scanValues(columns []string) ([]interface{}, error) {
+	values := make([]interface{}, len(columns))
+	for i := range columns {
+		switch columns[i] {
+		case users.FieldLimit:
+			values[i] = new(sql.NullBool)
+		case users.FieldPercentage:
+			values[i] = new(sql.NullFloat64)
+		case users.FieldID, users.FieldSkill, users.FieldHp, users.FieldAttack, users.FieldDefense, users.FieldCritical, users.FieldBattle, users.FieldWin, users.FieldDay:
+			values[i] = new(sql.NullInt64)
+		case users.FieldUser, users.FieldChara, users.FieldStatus, users.FieldComment, users.FieldNext, users.FieldURL:
+			values[i] = new(sql.NullString)
+		case users.FieldCreatedAt, users.FieldUpdatedAt:
+			values[i] = new(sql.NullTime)
+		default:
+			return nil, fmt.Errorf("unexpected column %q for type Users", columns[i])
+		}
+	}
+	return values, nil
+}
+
+// assignValues assigns the values that were returned from sql.Rows (after scanning)
+// to the Users fields.
+func (u *Users) assignValues(columns []string, values []interface{}) error {
+	if m, n := len(values), len(columns); m < n {
+		return fmt.Errorf("mismatch number of scan values: %d != %d", m, n)
+	}
+	for i := range columns {
+		switch columns[i] {
+		case users.FieldID:
+			value, ok := values[i].(*sql.NullInt64)
+			if !ok {
+				return fmt.Errorf("unexpected type %T for field id", value)
+			}
+			u.ID = int(value.Int64)
+		case users.FieldUser:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field user", values[i])
+			} else if value.Valid {
+				u.User = value.String
+			}
+		case users.FieldChara:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field chara", values[i])
+			} else if value.Valid {
+				u.Chara = value.String
+			}
+		case users.FieldSkill:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field skill", values[i])
+			} else if value.Valid {
+				u.Skill = int(value.Int64)
+			}
+		case users.FieldHp:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field hp", values[i])
+			} else if value.Valid {
+				u.Hp = int(value.Int64)
+			}
+		case users.FieldAttack:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field attack", values[i])
+			} else if value.Valid {
+				u.Attack = int(value.Int64)
+			}
+		case users.FieldDefense:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field defense", values[i])
+			} else if value.Valid {
+				u.Defense = int(value.Int64)
+			}
+		case users.FieldCritical:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field critical", values[i])
+			} else if value.Valid {
+				u.Critical = int(value.Int64)
+			}
+		case users.FieldBattle:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field battle", values[i])
+			} else if value.Valid {
+				u.Battle = int(value.Int64)
+			}
+		case users.FieldWin:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field win", values[i])
+			} else if value.Valid {
+				u.Win = int(value.Int64)
+			}
+		case users.FieldDay:
+			if value, ok := values[i].(*sql.NullInt64); !ok {
+				return fmt.Errorf("unexpected type %T for field day", values[i])
+			} else if value.Valid {
+				u.Day = int(value.Int64)
+			}
+		case users.FieldPercentage:
+			if value, ok := values[i].(*sql.NullFloat64); !ok {
+				return fmt.Errorf("unexpected type %T for field percentage", values[i])
+			} else if value.Valid {
+				u.Percentage = value.Float64
+			}
+		case users.FieldLimit:
+			if value, ok := values[i].(*sql.NullBool); !ok {
+				return fmt.Errorf("unexpected type %T for field limit", values[i])
+			} else if value.Valid {
+				u.Limit = value.Bool
+			}
+		case users.FieldStatus:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field status", values[i])
+			} else if value.Valid {
+				u.Status = value.String
+			}
+		case users.FieldComment:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field comment", values[i])
+			} else if value.Valid {
+				u.Comment = value.String
+			}
+		case users.FieldCreatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field created_at", values[i])
+			} else if value.Valid {
+				u.CreatedAt = value.Time
+			}
+		case users.FieldNext:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field next", values[i])
+			} else if value.Valid {
+				u.Next = value.String
+			}
+		case users.FieldUpdatedAt:
+			if value, ok := values[i].(*sql.NullTime); !ok {
+				return fmt.Errorf("unexpected type %T for field updated_at", values[i])
+			} else if value.Valid {
+				u.UpdatedAt = value.Time
+			}
+		case users.FieldURL:
+			if value, ok := values[i].(*sql.NullString); !ok {
+				return fmt.Errorf("unexpected type %T for field url", values[i])
+			} else if value.Valid {
+				u.URL = value.String
+			}
+		}
+	}
+	return nil
+}
+
+// Update returns a builder for updating this Users.
+// Note that you need to call Users.Unwrap() before calling this method if this Users
+// was returned from a transaction, and the transaction was committed or rolled back.
+func (u *Users) Update() *UsersUpdateOne {
+	return (&UsersClient{config: u.config}).UpdateOne(u)
+}
+
+// Unwrap unwraps the Users entity that was returned from a transaction after it was closed,
+// so that all future queries will be executed through the driver which created the transaction.
+func (u *Users) Unwrap() *Users {
+	tx, ok := u.config.driver.(*txDriver)
+	if !ok {
+		panic("ent: Users is not a transactional entity")
+	}
+	u.config.driver = tx.drv
+	return u
+}
+
+// String implements the fmt.Stringer.
+func (u *Users) String() string {
+	var builder strings.Builder
+	builder.WriteString("Users(")
+	builder.WriteString(fmt.Sprintf("id=%v", u.ID))
+	builder.WriteString(", user=")
+	builder.WriteString(u.User)
+	builder.WriteString(", chara=")
+	builder.WriteString(u.Chara)
+	builder.WriteString(", skill=")
+	builder.WriteString(fmt.Sprintf("%v", u.Skill))
+	builder.WriteString(", hp=")
+	builder.WriteString(fmt.Sprintf("%v", u.Hp))
+	builder.WriteString(", attack=")
+	builder.WriteString(fmt.Sprintf("%v", u.Attack))
+	builder.WriteString(", defense=")
+	builder.WriteString(fmt.Sprintf("%v", u.Defense))
+	builder.WriteString(", critical=")
+	builder.WriteString(fmt.Sprintf("%v", u.Critical))
+	builder.WriteString(", battle=")
+	builder.WriteString(fmt.Sprintf("%v", u.Battle))
+	builder.WriteString(", win=")
+	builder.WriteString(fmt.Sprintf("%v", u.Win))
+	builder.WriteString(", day=")
+	builder.WriteString(fmt.Sprintf("%v", u.Day))
+	builder.WriteString(", percentage=")
+	builder.WriteString(fmt.Sprintf("%v", u.Percentage))
+	builder.WriteString(", limit=")
+	builder.WriteString(fmt.Sprintf("%v", u.Limit))
+	builder.WriteString(", status=")
+	builder.WriteString(u.Status)
+	builder.WriteString(", comment=")
+	builder.WriteString(u.Comment)
+	builder.WriteString(", created_at=")
+	builder.WriteString(u.CreatedAt.Format(time.ANSIC))
+	builder.WriteString(", next=")
+	builder.WriteString(u.Next)
+	builder.WriteString(", updated_at=")
+	builder.WriteString(u.UpdatedAt.Format(time.ANSIC))
+	builder.WriteString(", url=")
+	builder.WriteString(u.URL)
+	builder.WriteByte(')')
+	return builder.String()
+}
+
+// UsersSlice is a parsable slice of Users.
+type UsersSlice []*Users
+
+func (u UsersSlice) config(cfg config) {
+	for _i := range u {
+		u[_i].config = cfg
+	}
+}

ent/users/users.go

@@ -0,0 +1,124 @@
+// Code generated by entc, DO NOT EDIT.
+
+package users
+
+import (
+	"time"
+)
+
+const (
+	// Label holds the string label denoting the users type in the database.
+	Label = "users"
+	// FieldID holds the string denoting the id field in the database.
+	FieldID = "id"
+	// FieldUser holds the string denoting the user field in the database.
+	FieldUser = "user"
+	// FieldChara holds the string denoting the chara field in the database.
+	FieldChara = "chara"
+	// FieldSkill holds the string denoting the skill field in the database.
+	FieldSkill = "skill"
+	// FieldHp holds the string denoting the hp field in the database.
+	FieldHp = "hp"
+	// FieldAttack holds the string denoting the attack field in the database.
+	FieldAttack = "attack"
+	// FieldDefense holds the string denoting the defense field in the database.
+	FieldDefense = "defense"
+	// FieldCritical holds the string denoting the critical field in the database.
+	FieldCritical = "critical"
+	// FieldBattle holds the string denoting the battle field in the database.
+	FieldBattle = "battle"
+	// FieldWin holds the string denoting the win field in the database.
+	FieldWin = "win"
+	// FieldDay holds the string denoting the day field in the database.
+	FieldDay = "day"
+	// FieldPercentage holds the string denoting the percentage field in the database.
+	FieldPercentage = "percentage"
+	// FieldLimit holds the string denoting the limit field in the database.
+	FieldLimit = "limit"
+	// FieldStatus holds the string denoting the status field in the database.
+	FieldStatus = "status"
+	// FieldComment holds the string denoting the comment field in the database.
+	FieldComment = "comment"
+	// FieldCreatedAt holds the string denoting the created_at field in the database.
+	FieldCreatedAt = "created_at"
+	// FieldNext holds the string denoting the next field in the database.
+	FieldNext = "next"
+	// FieldUpdatedAt holds the string denoting the updated_at field in the database.
+	FieldUpdatedAt = "updated_at"
+	// FieldURL holds the string denoting the url field in the database.
+	FieldURL = "url"
+	// Table holds the table name of the users in the database.
+	Table = "users"
+)
+
+// Columns holds all SQL columns for users fields.
+var Columns = []string{
+	FieldID,
+	FieldUser,
+	FieldChara,
+	FieldSkill,
+	FieldHp,
+	FieldAttack,
+	FieldDefense,
+	FieldCritical,
+	FieldBattle,
+	FieldWin,
+	FieldDay,
+	FieldPercentage,
+	FieldLimit,
+	FieldStatus,
+	FieldComment,
+	FieldCreatedAt,
+	FieldNext,
+	FieldUpdatedAt,
+	FieldURL,
+}
+
+// ValidColumn reports if the column name is valid (part of the table columns).
+func ValidColumn(column string) bool {
+	for i := range Columns {
+		if column == Columns[i] {
+			return true
+		}
+	}
+	return false
+}
+
+var (
+	// UserValidator is a validator for the "user" field. It is called by the builders before save.
+	UserValidator func(string) error
+	// DefaultChara holds the default value on creation for the "chara" field.
+	DefaultChara string
+	// DefaultSkill holds the default value on creation for the "skill" field.
+	DefaultSkill int
+	// DefaultHp holds the default value on creation for the "hp" field.
+	DefaultHp int
+	// DefaultAttack holds the default value on creation for the "attack" field.
+	DefaultAttack int
+	// DefaultDefense holds the default value on creation for the "defense" field.
+	DefaultDefense int
+	// DefaultCritical holds the default value on creation for the "critical" field.
+	DefaultCritical int
+	// DefaultBattle holds the default value on creation for the "battle" field.
+	DefaultBattle int
+	// DefaultWin holds the default value on creation for the "win" field.
+	DefaultWin int
+	// DefaultDay holds the default value on creation for the "day" field.
+	DefaultDay int
+	// DefaultPercentage holds the default value on creation for the "percentage" field.
+	DefaultPercentage float64
+	// DefaultLimit holds the default value on creation for the "limit" field.
+	DefaultLimit bool
+	// DefaultStatus holds the default value on creation for the "status" field.
+	DefaultStatus string
+	// DefaultComment holds the default value on creation for the "comment" field.
+	DefaultComment string
+	// DefaultCreatedAt holds the default value on creation for the "created_at" field.
+	DefaultCreatedAt func() time.Time
+	// DefaultNext holds the default value on creation for the "next" field.
+	DefaultNext string
+	// DefaultUpdatedAt holds the default value on creation for the "updated_at" field.
+	DefaultUpdatedAt func() time.Time
+	// DefaultURL holds the default value on creation for the "url" field.
+	DefaultURL string
+)

ent/users_create.go

@@ -0,0 +1,674 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"t/ent/users"
+	"time"
+
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// UsersCreate is the builder for creating a Users entity.
+type UsersCreate struct {
+	config
+	mutation *UsersMutation
+	hooks    []Hook
+}
+
+// SetUser sets the "user" field.
+func (uc *UsersCreate) SetUser(s string) *UsersCreate {
+	uc.mutation.SetUser(s)
+	return uc
+}
+
+// SetChara sets the "chara" field.
+func (uc *UsersCreate) SetChara(s string) *UsersCreate {
+	uc.mutation.SetChara(s)
+	return uc
+}
+
+// SetNillableChara sets the "chara" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableChara(s *string) *UsersCreate {
+	if s != nil {
+		uc.SetChara(*s)
+	}
+	return uc
+}
+
+// SetSkill sets the "skill" field.
+func (uc *UsersCreate) SetSkill(i int) *UsersCreate {
+	uc.mutation.SetSkill(i)
+	return uc
+}
+
+// SetNillableSkill sets the "skill" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableSkill(i *int) *UsersCreate {
+	if i != nil {
+		uc.SetSkill(*i)
+	}
+	return uc
+}
+
+// SetHp sets the "hp" field.
+func (uc *UsersCreate) SetHp(i int) *UsersCreate {
+	uc.mutation.SetHp(i)
+	return uc
+}
+
+// SetNillableHp sets the "hp" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableHp(i *int) *UsersCreate {
+	if i != nil {
+		uc.SetHp(*i)
+	}
+	return uc
+}
+
+// SetAttack sets the "attack" field.
+func (uc *UsersCreate) SetAttack(i int) *UsersCreate {
+	uc.mutation.SetAttack(i)
+	return uc
+}
+
+// SetNillableAttack sets the "attack" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableAttack(i *int) *UsersCreate {
+	if i != nil {
+		uc.SetAttack(*i)
+	}
+	return uc
+}
+
+// SetDefense sets the "defense" field.
+func (uc *UsersCreate) SetDefense(i int) *UsersCreate {
+	uc.mutation.SetDefense(i)
+	return uc
+}
+
+// SetNillableDefense sets the "defense" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableDefense(i *int) *UsersCreate {
+	if i != nil {
+		uc.SetDefense(*i)
+	}
+	return uc
+}
+
+// SetCritical sets the "critical" field.
+func (uc *UsersCreate) SetCritical(i int) *UsersCreate {
+	uc.mutation.SetCritical(i)
+	return uc
+}
+
+// SetNillableCritical sets the "critical" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableCritical(i *int) *UsersCreate {
+	if i != nil {
+		uc.SetCritical(*i)
+	}
+	return uc
+}
+
+// SetBattle sets the "battle" field.
+func (uc *UsersCreate) SetBattle(i int) *UsersCreate {
+	uc.mutation.SetBattle(i)
+	return uc
+}
+
+// SetNillableBattle sets the "battle" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableBattle(i *int) *UsersCreate {
+	if i != nil {
+		uc.SetBattle(*i)
+	}
+	return uc
+}
+
+// SetWin sets the "win" field.
+func (uc *UsersCreate) SetWin(i int) *UsersCreate {
+	uc.mutation.SetWin(i)
+	return uc
+}
+
+// SetNillableWin sets the "win" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableWin(i *int) *UsersCreate {
+	if i != nil {
+		uc.SetWin(*i)
+	}
+	return uc
+}
+
+// SetDay sets the "day" field.
+func (uc *UsersCreate) SetDay(i int) *UsersCreate {
+	uc.mutation.SetDay(i)
+	return uc
+}
+
+// SetNillableDay sets the "day" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableDay(i *int) *UsersCreate {
+	if i != nil {
+		uc.SetDay(*i)
+	}
+	return uc
+}
+
+// SetPercentage sets the "percentage" field.
+func (uc *UsersCreate) SetPercentage(f float64) *UsersCreate {
+	uc.mutation.SetPercentage(f)
+	return uc
+}
+
+// SetNillablePercentage sets the "percentage" field if the given value is not nil.
+func (uc *UsersCreate) SetNillablePercentage(f *float64) *UsersCreate {
+	if f != nil {
+		uc.SetPercentage(*f)
+	}
+	return uc
+}
+
+// SetLimit sets the "limit" field.
+func (uc *UsersCreate) SetLimit(b bool) *UsersCreate {
+	uc.mutation.SetLimit(b)
+	return uc
+}
+
+// SetNillableLimit sets the "limit" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableLimit(b *bool) *UsersCreate {
+	if b != nil {
+		uc.SetLimit(*b)
+	}
+	return uc
+}
+
+// SetStatus sets the "status" field.
+func (uc *UsersCreate) SetStatus(s string) *UsersCreate {
+	uc.mutation.SetStatus(s)
+	return uc
+}
+
+// SetNillableStatus sets the "status" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableStatus(s *string) *UsersCreate {
+	if s != nil {
+		uc.SetStatus(*s)
+	}
+	return uc
+}
+
+// SetComment sets the "comment" field.
+func (uc *UsersCreate) SetComment(s string) *UsersCreate {
+	uc.mutation.SetComment(s)
+	return uc
+}
+
+// SetNillableComment sets the "comment" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableComment(s *string) *UsersCreate {
+	if s != nil {
+		uc.SetComment(*s)
+	}
+	return uc
+}
+
+// SetCreatedAt sets the "created_at" field.
+func (uc *UsersCreate) SetCreatedAt(t time.Time) *UsersCreate {
+	uc.mutation.SetCreatedAt(t)
+	return uc
+}
+
+// SetNillableCreatedAt sets the "created_at" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableCreatedAt(t *time.Time) *UsersCreate {
+	if t != nil {
+		uc.SetCreatedAt(*t)
+	}
+	return uc
+}
+
+// SetNext sets the "next" field.
+func (uc *UsersCreate) SetNext(s string) *UsersCreate {
+	uc.mutation.SetNext(s)
+	return uc
+}
+
+// SetNillableNext sets the "next" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableNext(s *string) *UsersCreate {
+	if s != nil {
+		uc.SetNext(*s)
+	}
+	return uc
+}
+
+// SetUpdatedAt sets the "updated_at" field.
+func (uc *UsersCreate) SetUpdatedAt(t time.Time) *UsersCreate {
+	uc.mutation.SetUpdatedAt(t)
+	return uc
+}
+
+// SetNillableUpdatedAt sets the "updated_at" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableUpdatedAt(t *time.Time) *UsersCreate {
+	if t != nil {
+		uc.SetUpdatedAt(*t)
+	}
+	return uc
+}
+
+// SetURL sets the "url" field.
+func (uc *UsersCreate) SetURL(s string) *UsersCreate {
+	uc.mutation.SetURL(s)
+	return uc
+}
+
+// SetNillableURL sets the "url" field if the given value is not nil.
+func (uc *UsersCreate) SetNillableURL(s *string) *UsersCreate {
+	if s != nil {
+		uc.SetURL(*s)
+	}
+	return uc
+}
+
+// Mutation returns the UsersMutation object of the builder.
+func (uc *UsersCreate) Mutation() *UsersMutation {
+	return uc.mutation
+}
+
+// Save creates the Users in the database.
+func (uc *UsersCreate) Save(ctx context.Context) (*Users, error) {
+	var (
+		err  error
+		node *Users
+	)
+	uc.defaults()
+	if len(uc.hooks) == 0 {
+		if err = uc.check(); err != nil {
+			return nil, err
+		}
+		node, err = uc.sqlSave(ctx)
+	} else {
+		var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+			mutation, ok := m.(*UsersMutation)
+			if !ok {
+				return nil, fmt.Errorf("unexpected mutation type %T", m)
+			}
+			if err = uc.check(); err != nil {
+				return nil, err
+			}
+			uc.mutation = mutation
+			if node, err = uc.sqlSave(ctx); err != nil {
+				return nil, err
+			}
+			mutation.id = &node.ID
+			mutation.done = true
+			return node, err
+		})
+		for i := len(uc.hooks) - 1; i >= 0; i-- {
+			if uc.hooks[i] == nil {
+				return nil, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
+			}
+			mut = uc.hooks[i](mut)
+		}
+		if _, err := mut.Mutate(ctx, uc.mutation); err != nil {
+			return nil, err
+		}
+	}
+	return node, err
+}
+
+// SaveX calls Save and panics if Save returns an error.
+func (uc *UsersCreate) SaveX(ctx context.Context) *Users {
+	v, err := uc.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (uc *UsersCreate) Exec(ctx context.Context) error {
+	_, err := uc.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (uc *UsersCreate) ExecX(ctx context.Context) {
+	if err := uc.Exec(ctx); err != nil {
+		panic(err)
+	}
+}
+
+// defaults sets the default values of the builder before save.
+func (uc *UsersCreate) defaults() {
+	if _, ok := uc.mutation.Chara(); !ok {
+		v := users.DefaultChara
+		uc.mutation.SetChara(v)
+	}
+	if _, ok := uc.mutation.Skill(); !ok {
+		v := users.DefaultSkill
+		uc.mutation.SetSkill(v)
+	}
+	if _, ok := uc.mutation.Hp(); !ok {
+		v := users.DefaultHp
+		uc.mutation.SetHp(v)
+	}
+	if _, ok := uc.mutation.Attack(); !ok {
+		v := users.DefaultAttack
+		uc.mutation.SetAttack(v)
+	}
+	if _, ok := uc.mutation.Defense(); !ok {
+		v := users.DefaultDefense
+		uc.mutation.SetDefense(v)
+	}
+	if _, ok := uc.mutation.Critical(); !ok {
+		v := users.DefaultCritical
+		uc.mutation.SetCritical(v)
+	}
+	if _, ok := uc.mutation.Battle(); !ok {
+		v := users.DefaultBattle
+		uc.mutation.SetBattle(v)
+	}
+	if _, ok := uc.mutation.Win(); !ok {
+		v := users.DefaultWin
+		uc.mutation.SetWin(v)
+	}
+	if _, ok := uc.mutation.Day(); !ok {
+		v := users.DefaultDay
+		uc.mutation.SetDay(v)
+	}
+	if _, ok := uc.mutation.Percentage(); !ok {
+		v := users.DefaultPercentage
+		uc.mutation.SetPercentage(v)
+	}
+	if _, ok := uc.mutation.Limit(); !ok {
+		v := users.DefaultLimit
+		uc.mutation.SetLimit(v)
+	}
+	if _, ok := uc.mutation.Status(); !ok {
+		v := users.DefaultStatus
+		uc.mutation.SetStatus(v)
+	}
+	if _, ok := uc.mutation.Comment(); !ok {
+		v := users.DefaultComment
+		uc.mutation.SetComment(v)
+	}
+	if _, ok := uc.mutation.CreatedAt(); !ok {
+		v := users.DefaultCreatedAt()
+		uc.mutation.SetCreatedAt(v)
+	}
+	if _, ok := uc.mutation.Next(); !ok {
+		v := users.DefaultNext
+		uc.mutation.SetNext(v)
+	}
+	if _, ok := uc.mutation.UpdatedAt(); !ok {
+		v := users.DefaultUpdatedAt()
+		uc.mutation.SetUpdatedAt(v)
+	}
+	if _, ok := uc.mutation.URL(); !ok {
+		v := users.DefaultURL
+		uc.mutation.SetURL(v)
+	}
+}
+
+// check runs all checks and user-defined validators on the builder.
+func (uc *UsersCreate) check() error {
+	if _, ok := uc.mutation.User(); !ok {
+		return &ValidationError{Name: "user", err: errors.New(`ent: missing required field "Users.user"`)}
+	}
+	if v, ok := uc.mutation.User(); ok {
+		if err := users.UserValidator(v); err != nil {
+			return &ValidationError{Name: "user", err: fmt.Errorf(`ent: validator failed for field "Users.user": %w`, err)}
+		}
+	}
+	return nil
+}
+
+func (uc *UsersCreate) sqlSave(ctx context.Context) (*Users, error) {
+	_node, _spec := uc.createSpec()
+	if err := sqlgraph.CreateNode(ctx, uc.driver, _spec); err != nil {
+		if sqlgraph.IsConstraintError(err) {
+			err = &ConstraintError{err.Error(), err}
+		}
+		return nil, err
+	}
+	id := _spec.ID.Value.(int64)
+	_node.ID = int(id)
+	return _node, nil
+}
+
+func (uc *UsersCreate) createSpec() (*Users, *sqlgraph.CreateSpec) {
+	var (
+		_node = &Users{config: uc.config}
+		_spec = &sqlgraph.CreateSpec{
+			Table: users.Table,
+			ID: &sqlgraph.FieldSpec{
+				Type:   field.TypeInt,
+				Column: users.FieldID,
+			},
+		}
+	)
+	if value, ok := uc.mutation.User(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeString,
+			Value:  value,
+			Column: users.FieldUser,
+		})
+		_node.User = value
+	}
+	if value, ok := uc.mutation.Chara(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeString,
+			Value:  value,
+			Column: users.FieldChara,
+		})
+		_node.Chara = value
+	}
+	if value, ok := uc.mutation.Skill(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeInt,
+			Value:  value,
+			Column: users.FieldSkill,
+		})
+		_node.Skill = value
+	}
+	if value, ok := uc.mutation.Hp(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeInt,
+			Value:  value,
+			Column: users.FieldHp,
+		})
+		_node.Hp = value
+	}
+	if value, ok := uc.mutation.Attack(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeInt,
+			Value:  value,
+			Column: users.FieldAttack,
+		})
+		_node.Attack = value
+	}
+	if value, ok := uc.mutation.Defense(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeInt,
+			Value:  value,
+			Column: users.FieldDefense,
+		})
+		_node.Defense = value
+	}
+	if value, ok := uc.mutation.Critical(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeInt,
+			Value:  value,
+			Column: users.FieldCritical,
+		})
+		_node.Critical = value
+	}
+	if value, ok := uc.mutation.Battle(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeInt,
+			Value:  value,
+			Column: users.FieldBattle,
+		})
+		_node.Battle = value
+	}
+	if value, ok := uc.mutation.Win(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeInt,
+			Value:  value,
+			Column: users.FieldWin,
+		})
+		_node.Win = value
+	}
+	if value, ok := uc.mutation.Day(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeInt,
+			Value:  value,
+			Column: users.FieldDay,
+		})
+		_node.Day = value
+	}
+	if value, ok := uc.mutation.Percentage(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeFloat64,
+			Value:  value,
+			Column: users.FieldPercentage,
+		})
+		_node.Percentage = value
+	}
+	if value, ok := uc.mutation.Limit(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeBool,
+			Value:  value,
+			Column: users.FieldLimit,
+		})
+		_node.Limit = value
+	}
+	if value, ok := uc.mutation.Status(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeString,
+			Value:  value,
+			Column: users.FieldStatus,
+		})
+		_node.Status = value
+	}
+	if value, ok := uc.mutation.Comment(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeString,
+			Value:  value,
+			Column: users.FieldComment,
+		})
+		_node.Comment = value
+	}
+	if value, ok := uc.mutation.CreatedAt(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeTime,
+			Value:  value,
+			Column: users.FieldCreatedAt,
+		})
+		_node.CreatedAt = value
+	}
+	if value, ok := uc.mutation.Next(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeString,
+			Value:  value,
+			Column: users.FieldNext,
+		})
+		_node.Next = value
+	}
+	if value, ok := uc.mutation.UpdatedAt(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeTime,
+			Value:  value,
+			Column: users.FieldUpdatedAt,
+		})
+		_node.UpdatedAt = value
+	}
+	if value, ok := uc.mutation.URL(); ok {
+		_spec.Fields = append(_spec.Fields, &sqlgraph.FieldSpec{
+			Type:   field.TypeString,
+			Value:  value,
+			Column: users.FieldURL,
+		})
+		_node.URL = value
+	}
+	return _node, _spec
+}
+
+// UsersCreateBulk is the builder for creating many Users entities in bulk.
+type UsersCreateBulk struct {
+	config
+	builders []*UsersCreate
+}
+
+// Save creates the Users entities in the database.
+func (ucb *UsersCreateBulk) Save(ctx context.Context) ([]*Users, error) {
+	specs := make([]*sqlgraph.CreateSpec, len(ucb.builders))
+	nodes := make([]*Users, len(ucb.builders))
+	mutators := make([]Mutator, len(ucb.builders))
+	for i := range ucb.builders {
+		func(i int, root context.Context) {
+			builder := ucb.builders[i]
+			builder.defaults()
+			var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+				mutation, ok := m.(*UsersMutation)
+				if !ok {
+					return nil, fmt.Errorf("unexpected mutation type %T", m)
+				}
+				if err := builder.check(); err != nil {
+					return nil, err
+				}
+				builder.mutation = mutation
+				nodes[i], specs[i] = builder.createSpec()
+				var err error
+				if i < len(mutators)-1 {
+					_, err = mutators[i+1].Mutate(root, ucb.builders[i+1].mutation)
+				} else {
+					spec := &sqlgraph.BatchCreateSpec{Nodes: specs}
+					// Invoke the actual operation on the latest mutation in the chain.
+					if err = sqlgraph.BatchCreate(ctx, ucb.driver, spec); err != nil {
+						if sqlgraph.IsConstraintError(err) {
+							err = &ConstraintError{err.Error(), err}
+						}
+					}
+				}
+				if err != nil {
+					return nil, err
+				}
+				mutation.id = &nodes[i].ID
+				mutation.done = true
+				if specs[i].ID.Value != nil {
+					id := specs[i].ID.Value.(int64)
+					nodes[i].ID = int(id)
+				}
+				return nodes[i], nil
+			})
+			for i := len(builder.hooks) - 1; i >= 0; i-- {
+				mut = builder.hooks[i](mut)
+			}
+			mutators[i] = mut
+		}(i, ctx)
+	}
+	if len(mutators) > 0 {
+		if _, err := mutators[0].Mutate(ctx, ucb.builders[0].mutation); err != nil {
+			return nil, err
+		}
+	}
+	return nodes, nil
+}
+
+// SaveX is like Save, but panics if an error occurs.
+func (ucb *UsersCreateBulk) SaveX(ctx context.Context) []*Users {
+	v, err := ucb.Save(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Exec executes the query.
+func (ucb *UsersCreateBulk) Exec(ctx context.Context) error {
+	_, err := ucb.Save(ctx)
+	return err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (ucb *UsersCreateBulk) ExecX(ctx context.Context) {
+	if err := ucb.Exec(ctx); err != nil {
+		panic(err)
+	}
+}

ent/users_delete.go

@@ -0,0 +1,111 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"fmt"
+	"t/ent/predicate"
+	"t/ent/users"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// UsersDelete is the builder for deleting a Users entity.
+type UsersDelete struct {
+	config
+	hooks    []Hook
+	mutation *UsersMutation
+}
+
+// Where appends a list predicates to the UsersDelete builder.
+func (ud *UsersDelete) Where(ps ...predicate.Users) *UsersDelete {
+	ud.mutation.Where(ps...)
+	return ud
+}
+
+// Exec executes the deletion query and returns how many vertices were deleted.
+func (ud *UsersDelete) Exec(ctx context.Context) (int, error) {
+	var (
+		err      error
+		affected int
+	)
+	if len(ud.hooks) == 0 {
+		affected, err = ud.sqlExec(ctx)
+	} else {
+		var mut Mutator = MutateFunc(func(ctx context.Context, m Mutation) (Value, error) {
+			mutation, ok := m.(*UsersMutation)
+			if !ok {
+				return nil, fmt.Errorf("unexpected mutation type %T", m)
+			}
+			ud.mutation = mutation
+			affected, err = ud.sqlExec(ctx)
+			mutation.done = true
+			return affected, err
+		})
+		for i := len(ud.hooks) - 1; i >= 0; i-- {
+			if ud.hooks[i] == nil {
+				return 0, fmt.Errorf("ent: uninitialized hook (forgotten import ent/runtime?)")
+			}
+			mut = ud.hooks[i](mut)
+		}
+		if _, err := mut.Mutate(ctx, ud.mutation); err != nil {
+			return 0, err
+		}
+	}
+	return affected, err
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (ud *UsersDelete) ExecX(ctx context.Context) int {
+	n, err := ud.Exec(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return n
+}
+
+func (ud *UsersDelete) sqlExec(ctx context.Context) (int, error) {
+	_spec := &sqlgraph.DeleteSpec{
+		Node: &sqlgraph.NodeSpec{
+			Table: users.Table,
+			ID: &sqlgraph.FieldSpec{
+				Type:   field.TypeInt,
+				Column: users.FieldID,
+			},
+		},
+	}
+	if ps := ud.mutation.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return sqlgraph.DeleteNodes(ctx, ud.driver, _spec)
+}
+
+// UsersDeleteOne is the builder for deleting a single Users entity.
+type UsersDeleteOne struct {
+	ud *UsersDelete
+}
+
+// Exec executes the deletion query.
+func (udo *UsersDeleteOne) Exec(ctx context.Context) error {
+	n, err := udo.ud.Exec(ctx)
+	switch {
+	case err != nil:
+		return err
+	case n == 0:
+		return &NotFoundError{users.Label}
+	default:
+		return nil
+	}
+}
+
+// ExecX is like Exec, but panics if an error occurs.
+func (udo *UsersDeleteOne) ExecX(ctx context.Context) {
+	udo.ud.ExecX(ctx)
+}

ent/users_query.go

@@ -0,0 +1,920 @@
+// Code generated by entc, DO NOT EDIT.
+
+package ent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"math"
+	"t/ent/predicate"
+	"t/ent/users"
+
+	"entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect/sql/sqlgraph"
+	"entgo.io/ent/schema/field"
+)
+
+// UsersQuery is the builder for querying Users entities.
+type UsersQuery struct {
+	config
+	limit      *int
+	offset     *int
+	unique     *bool
+	order      []OrderFunc
+	fields     []string
+	predicates []predicate.Users
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Where adds a new predicate for the UsersQuery builder.
+func (uq *UsersQuery) Where(ps ...predicate.Users) *UsersQuery {
+	uq.predicates = append(uq.predicates, ps...)
+	return uq
+}
+
+// Limit adds a limit step to the query.
+func (uq *UsersQuery) Limit(limit int) *UsersQuery {
+	uq.limit = &limit
+	return uq
+}
+
+// Offset adds an offset step to the query.
+func (uq *UsersQuery) Offset(offset int) *UsersQuery {
+	uq.offset = &offset
+	return uq
+}
+
+// Unique configures the query builder to filter duplicate records on query.
+// By default, unique is set to true, and can be disabled using this method.
+func (uq *UsersQuery) Unique(unique bool) *UsersQuery {
+	uq.unique = &unique
+	return uq
+}
+
+// Order adds an order step to the query.
+func (uq *UsersQuery) Order(o ...OrderFunc) *UsersQuery {
+	uq.order = append(uq.order, o...)
+	return uq
+}
+
+// First returns the first Users entity from the query.
+// Returns a *NotFoundError when no Users was found.
+func (uq *UsersQuery) First(ctx context.Context) (*Users, error) {
+	nodes, err := uq.Limit(1).All(ctx)
+	if err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nil, &NotFoundError{users.Label}
+	}
+	return nodes[0], nil
+}
+
+// FirstX is like First, but panics if an error occurs.
+func (uq *UsersQuery) FirstX(ctx context.Context) *Users {
+	node, err := uq.First(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return node
+}
+
+// FirstID returns the first Users ID from the query.
+// Returns a *NotFoundError when no Users ID was found.
+func (uq *UsersQuery) FirstID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = uq.Limit(1).IDs(ctx); err != nil {
+		return
+	}
+	if len(ids) == 0 {
+		err = &NotFoundError{users.Label}
+		return
+	}
+	return ids[0], nil
+}
+
+// FirstIDX is like FirstID, but panics if an error occurs.
+func (uq *UsersQuery) FirstIDX(ctx context.Context) int {
+	id, err := uq.FirstID(ctx)
+	if err != nil && !IsNotFound(err) {
+		panic(err)
+	}
+	return id
+}
+
+// Only returns a single Users entity found by the query, ensuring it only returns one.
+// Returns a *NotSingularError when exactly one Users entity is not found.
+// Returns a *NotFoundError when no Users entities are found.
+func (uq *UsersQuery) Only(ctx context.Context) (*Users, error) {
+	nodes, err := uq.Limit(2).All(ctx)
+	if err != nil {
+		return nil, err
+	}
+	switch len(nodes) {
+	case 1:
+		return nodes[0], nil
+	case 0:
+		return nil, &NotFoundError{users.Label}
+	default:
+		return nil, &NotSingularError{users.Label}
+	}
+}
+
+// OnlyX is like Only, but panics if an error occurs.
+func (uq *UsersQuery) OnlyX(ctx context.Context) *Users {
+	node, err := uq.Only(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return node
+}
+
+// OnlyID is like Only, but returns the only Users ID in the query.
+// Returns a *NotSingularError when exactly one Users ID is not found.
+// Returns a *NotFoundError when no entities are found.
+func (uq *UsersQuery) OnlyID(ctx context.Context) (id int, err error) {
+	var ids []int
+	if ids, err = uq.Limit(2).IDs(ctx); err != nil {
+		return
+	}
+	switch len(ids) {
+	case 1:
+		id = ids[0]
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = &NotSingularError{users.Label}
+	}
+	return
+}
+
+// OnlyIDX is like OnlyID, but panics if an error occurs.
+func (uq *UsersQuery) OnlyIDX(ctx context.Context) int {
+	id, err := uq.OnlyID(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return id
+}
+
+// All executes the query and returns a list of UsersSlice.
+func (uq *UsersQuery) All(ctx context.Context) ([]*Users, error) {
+	if err := uq.prepareQuery(ctx); err != nil {
+		return nil, err
+	}
+	return uq.sqlAll(ctx)
+}
+
+// AllX is like All, but panics if an error occurs.
+func (uq *UsersQuery) AllX(ctx context.Context) []*Users {
+	nodes, err := uq.All(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return nodes
+}
+
+// IDs executes the query and returns a list of Users IDs.
+func (uq *UsersQuery) IDs(ctx context.Context) ([]int, error) {
+	var ids []int
+	if err := uq.Select(users.FieldID).Scan(ctx, &ids); err != nil {
+		return nil, err
+	}
+	return ids, nil
+}
+
+// IDsX is like IDs, but panics if an error occurs.
+func (uq *UsersQuery) IDsX(ctx context.Context) []int {
+	ids, err := uq.IDs(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return ids
+}
+
+// Count returns the count of the given query.
+func (uq *UsersQuery) Count(ctx context.Context) (int, error) {
+	if err := uq.prepareQuery(ctx); err != nil {
+		return 0, err
+	}
+	return uq.sqlCount(ctx)
+}
+
+// CountX is like Count, but panics if an error occurs.
+func (uq *UsersQuery) CountX(ctx context.Context) int {
+	count, err := uq.Count(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return count
+}
+
+// Exist returns true if the query has elements in the graph.
+func (uq *UsersQuery) Exist(ctx context.Context) (bool, error) {
+	if err := uq.prepareQuery(ctx); err != nil {
+		return false, err
+	}
+	return uq.sqlExist(ctx)
+}
+
+// ExistX is like Exist, but panics if an error occurs.
+func (uq *UsersQuery) ExistX(ctx context.Context) bool {
+	exist, err := uq.Exist(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return exist
+}
+
+// Clone returns a duplicate of the UsersQuery builder, including all associated steps. It can be
+// used to prepare common query builders and use them differently after the clone is made.
+func (uq *UsersQuery) Clone() *UsersQuery {
+	if uq == nil {
+		return nil
+	}
+	return &UsersQuery{
+		config:     uq.config,
+		limit:      uq.limit,
+		offset:     uq.offset,
+		order:      append([]OrderFunc{}, uq.order...),
+		predicates: append([]predicate.Users{}, uq.predicates...),
+		// clone intermediate query.
+		sql:  uq.sql.Clone(),
+		path: uq.path,
+	}
+}
+
+// GroupBy is used to group vertices by one or more fields/columns.
+// It is often used with aggregate functions, like: count, max, mean, min, sum.
+//
+// Example:
+//
+//	var v []struct {
+//		User string `json:"user,omitempty"`
+//		Count int `json:"count,omitempty"`
+//	}
+//
+//	client.Users.Query().
+//		GroupBy(users.FieldUser).
+//		Aggregate(ent.Count()).
+//		Scan(ctx, &v)
+//
+func (uq *UsersQuery) GroupBy(field string, fields ...string) *UsersGroupBy {
+	group := &UsersGroupBy{config: uq.config}
+	group.fields = append([]string{field}, fields...)
+	group.path = func(ctx context.Context) (prev *sql.Selector, err error) {
+		if err := uq.prepareQuery(ctx); err != nil {
+			return nil, err
+		}
+		return uq.sqlQuery(ctx), nil
+	}
+	return group
+}
+
+// Select allows the selection one or more fields/columns for the given query,
+// instead of selecting all fields in the entity.
+//
+// Example:
+//
+//	var v []struct {
+//		User string `json:"user,omitempty"`
+//	}
+//
+//	client.Users.Query().
+//		Select(users.FieldUser).
+//		Scan(ctx, &v)
+//
+func (uq *UsersQuery) Select(fields ...string) *UsersSelect {
+	uq.fields = append(uq.fields, fields...)
+	return &UsersSelect{UsersQuery: uq}
+}
+
+func (uq *UsersQuery) prepareQuery(ctx context.Context) error {
+	for _, f := range uq.fields {
+		if !users.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)}
+		}
+	}
+	if uq.path != nil {
+		prev, err := uq.path(ctx)
+		if err != nil {
+			return err
+		}
+		uq.sql = prev
+	}
+	return nil
+}
+
+func (uq *UsersQuery) sqlAll(ctx context.Context) ([]*Users, error) {
+	var (
+		nodes = []*Users{}
+		_spec = uq.querySpec()
+	)
+	_spec.ScanValues = func(columns []string) ([]interface{}, error) {
+		node := &Users{config: uq.config}
+		nodes = append(nodes, node)
+		return node.scanValues(columns)
+	}
+	_spec.Assign = func(columns []string, values []interface{}) error {
+		if len(nodes) == 0 {
+			return fmt.Errorf("ent: Assign called without calling ScanValues")
+		}
+		node := nodes[len(nodes)-1]
+		return node.assignValues(columns, values)
+	}
+	if err := sqlgraph.QueryNodes(ctx, uq.driver, _spec); err != nil {
+		return nil, err
+	}
+	if len(nodes) == 0 {
+		return nodes, nil
+	}
+	return nodes, nil
+}
+
+func (uq *UsersQuery) sqlCount(ctx context.Context) (int, error) {
+	_spec := uq.querySpec()
+	_spec.Node.Columns = uq.fields
+	if len(uq.fields) > 0 {
+		_spec.Unique = uq.unique != nil && *uq.unique
+	}
+	return sqlgraph.CountNodes(ctx, uq.driver, _spec)
+}
+
+func (uq *UsersQuery) sqlExist(ctx context.Context) (bool, error) {
+	n, err := uq.sqlCount(ctx)
+	if err != nil {
+		return false, fmt.Errorf("ent: check existence: %w", err)
+	}
+	return n > 0, nil
+}
+
+func (uq *UsersQuery) querySpec() *sqlgraph.QuerySpec {
+	_spec := &sqlgraph.QuerySpec{
+		Node: &sqlgraph.NodeSpec{
+			Table:   users.Table,
+			Columns: users.Columns,
+			ID: &sqlgraph.FieldSpec{
+				Type:   field.TypeInt,
+				Column: users.FieldID,
+			},
+		},
+		From:   uq.sql,
+		Unique: true,
+	}
+	if unique := uq.unique; unique != nil {
+		_spec.Unique = *unique
+	}
+	if fields := uq.fields; len(fields) > 0 {
+		_spec.Node.Columns = make([]string, 0, len(fields))
+		_spec.Node.Columns = append(_spec.Node.Columns, users.FieldID)
+		for i := range fields {
+			if fields[i] != users.FieldID {
+				_spec.Node.Columns = append(_spec.Node.Columns, fields[i])
+			}
+		}
+	}
+	if ps := uq.predicates; len(ps) > 0 {
+		_spec.Predicate = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	if limit := uq.limit; limit != nil {
+		_spec.Limit = *limit
+	}
+	if offset := uq.offset; offset != nil {
+		_spec.Offset = *offset
+	}
+	if ps := uq.order; len(ps) > 0 {
+		_spec.Order = func(selector *sql.Selector) {
+			for i := range ps {
+				ps[i](selector)
+			}
+		}
+	}
+	return _spec
+}
+
+func (uq *UsersQuery) sqlQuery(ctx context.Context) *sql.Selector {
+	builder := sql.Dialect(uq.driver.Dialect())
+	t1 := builder.Table(users.Table)
+	columns := uq.fields
+	if len(columns) == 0 {
+		columns = users.Columns
+	}
+	selector := builder.Select(t1.Columns(columns...)...).From(t1)
+	if uq.sql != nil {
+		selector = uq.sql
+		selector.Select(selector.Columns(columns...)...)
+	}
+	if uq.unique != nil && *uq.unique {
+		selector.Distinct()
+	}
+	for _, p := range uq.predicates {
+		p(selector)
+	}
+	for _, p := range uq.order {
+		p(selector)
+	}
+	if offset := uq.offset; offset != nil {
+		// limit is mandatory for offset clause. We start
+		// with default value, and override it below if needed.
+		selector.Offset(*offset).Limit(math.MaxInt32)
+	}
+	if limit := uq.limit; limit != nil {
+		selector.Limit(*limit)
+	}
+	return selector
+}
+
+// UsersGroupBy is the group-by builder for Users entities.
+type UsersGroupBy struct {
+	config
+	fields []string
+	fns    []AggregateFunc
+	// intermediate query (i.e. traversal path).
+	sql  *sql.Selector
+	path func(context.Context) (*sql.Selector, error)
+}
+
+// Aggregate adds the given aggregation functions to the group-by query.
+func (ugb *UsersGroupBy) Aggregate(fns ...AggregateFunc) *UsersGroupBy {
+	ugb.fns = append(ugb.fns, fns...)
+	return ugb
+}
+
+// Scan applies the group-by query and scans the result into the given value.
+func (ugb *UsersGroupBy) Scan(ctx context.Context, v interface{}) error {
+	query, err := ugb.path(ctx)
+	if err != nil {
+		return err
+	}
+	ugb.sql = query
+	return ugb.sqlScan(ctx, v)
+}
+
+// ScanX is like Scan, but panics if an error occurs.
+func (ugb *UsersGroupBy) ScanX(ctx context.Context, v interface{}) {
+	if err := ugb.Scan(ctx, v); err != nil {
+		panic(err)
+	}
+}
+
+// Strings returns list of strings from group-by.
+// It is only allowed when executing a group-by query with one field.
+func (ugb *UsersGroupBy) Strings(ctx context.Context) ([]string, error) {
+	if len(ugb.fields) > 1 {
+		return nil, errors.New("ent: UsersGroupBy.Strings is not achievable when grouping more than 1 field")
+	}
+	var v []string
+	if err := ugb.Scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// StringsX is like Strings, but panics if an error occurs.
+func (ugb *UsersGroupBy) StringsX(ctx context.Context) []string {
+	v, err := ugb.Strings(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// String returns a single string from a group-by query.
+// It is only allowed when executing a group-by query with one field.
+func (ugb *UsersGroupBy) String(ctx context.Context) (_ string, err error) {
+	var v []string
+	if v, err = ugb.Strings(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = fmt.Errorf("ent: UsersGroupBy.Strings returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// StringX is like String, but panics if an error occurs.
+func (ugb *UsersGroupBy) StringX(ctx context.Context) string {
+	v, err := ugb.String(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Ints returns list of ints from group-by.
+// It is only allowed when executing a group-by query with one field.
+func (ugb *UsersGroupBy) Ints(ctx context.Context) ([]int, error) {
+	if len(ugb.fields) > 1 {
+		return nil, errors.New("ent: UsersGroupBy.Ints is not achievable when grouping more than 1 field")
+	}
+	var v []int
+	if err := ugb.Scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// IntsX is like Ints, but panics if an error occurs.
+func (ugb *UsersGroupBy) IntsX(ctx context.Context) []int {
+	v, err := ugb.Ints(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Int returns a single int from a group-by query.
+// It is only allowed when executing a group-by query with one field.
+func (ugb *UsersGroupBy) Int(ctx context.Context) (_ int, err error) {
+	var v []int
+	if v, err = ugb.Ints(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = fmt.Errorf("ent: UsersGroupBy.Ints returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// IntX is like Int, but panics if an error occurs.
+func (ugb *UsersGroupBy) IntX(ctx context.Context) int {
+	v, err := ugb.Int(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64s returns list of float64s from group-by.
+// It is only allowed when executing a group-by query with one field.
+func (ugb *UsersGroupBy) Float64s(ctx context.Context) ([]float64, error) {
+	if len(ugb.fields) > 1 {
+		return nil, errors.New("ent: UsersGroupBy.Float64s is not achievable when grouping more than 1 field")
+	}
+	var v []float64
+	if err := ugb.Scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// Float64sX is like Float64s, but panics if an error occurs.
+func (ugb *UsersGroupBy) Float64sX(ctx context.Context) []float64 {
+	v, err := ugb.Float64s(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64 returns a single float64 from a group-by query.
+// It is only allowed when executing a group-by query with one field.
+func (ugb *UsersGroupBy) Float64(ctx context.Context) (_ float64, err error) {
+	var v []float64
+	if v, err = ugb.Float64s(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = fmt.Errorf("ent: UsersGroupBy.Float64s returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// Float64X is like Float64, but panics if an error occurs.
+func (ugb *UsersGroupBy) Float64X(ctx context.Context) float64 {
+	v, err := ugb.Float64(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bools returns list of bools from group-by.
+// It is only allowed when executing a group-by query with one field.
+func (ugb *UsersGroupBy) Bools(ctx context.Context) ([]bool, error) {
+	if len(ugb.fields) > 1 {
+		return nil, errors.New("ent: UsersGroupBy.Bools is not achievable when grouping more than 1 field")
+	}
+	var v []bool
+	if err := ugb.Scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// BoolsX is like Bools, but panics if an error occurs.
+func (ugb *UsersGroupBy) BoolsX(ctx context.Context) []bool {
+	v, err := ugb.Bools(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bool returns a single bool from a group-by query.
+// It is only allowed when executing a group-by query with one field.
+func (ugb *UsersGroupBy) Bool(ctx context.Context) (_ bool, err error) {
+	var v []bool
+	if v, err = ugb.Bools(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = fmt.Errorf("ent: UsersGroupBy.Bools returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// BoolX is like Bool, but panics if an error occurs.
+func (ugb *UsersGroupBy) BoolX(ctx context.Context) bool {
+	v, err := ugb.Bool(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+func (ugb *UsersGroupBy) sqlScan(ctx context.Context, v interface{}) error {
+	for _, f := range ugb.fields {
+		if !users.ValidColumn(f) {
+			return &ValidationError{Name: f, err: fmt.Errorf("invalid field %q for group-by", f)}
+		}
+	}
+	selector := ugb.sqlQuery()
+	if err := selector.Err(); err != nil {
+		return err
+	}
+	rows := &sql.Rows{}
+	query, args := selector.Query()
+	if err := ugb.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}
+
+func (ugb *UsersGroupBy) sqlQuery() *sql.Selector {
+	selector := ugb.sql.Select()
+	aggregation := make([]string, 0, len(ugb.fns))
+	for _, fn := range ugb.fns {
+		aggregation = append(aggregation, fn(selector))
+	}
+	// If no columns were selected in a custom aggregation function, the default
+	// selection is the fields used for "group-by", and the aggregation functions.
+	if len(selector.SelectedColumns()) == 0 {
+		columns := make([]string, 0, len(ugb.fields)+len(ugb.fns))
+		for _, f := range ugb.fields {
+			columns = append(columns, selector.C(f))
+		}
+		columns = append(columns, aggregation...)
+		selector.Select(columns...)
+	}
+	return selector.GroupBy(selector.Columns(ugb.fields...)...)
+}
+
+// UsersSelect is the builder for selecting fields of Users entities.
+type UsersSelect struct {
+	*UsersQuery
+	// intermediate query (i.e. traversal path).
+	sql *sql.Selector
+}
+
+// Scan applies the selector query and scans the result into the given value.
+func (us *UsersSelect) Scan(ctx context.Context, v interface{}) error {
+	if err := us.prepareQuery(ctx); err != nil {
+		return err
+	}
+	us.sql = us.UsersQuery.sqlQuery(ctx)
+	return us.sqlScan(ctx, v)
+}
+
+// ScanX is like Scan, but panics if an error occurs.
+func (us *UsersSelect) ScanX(ctx context.Context, v interface{}) {
+	if err := us.Scan(ctx, v); err != nil {
+		panic(err)
+	}
+}
+
+// Strings returns list of strings from a selector. It is only allowed when selecting one field.
+func (us *UsersSelect) Strings(ctx context.Context) ([]string, error) {
+	if len(us.fields) > 1 {
+		return nil, errors.New("ent: UsersSelect.Strings is not achievable when selecting more than 1 field")
+	}
+	var v []string
+	if err := us.Scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// StringsX is like Strings, but panics if an error occurs.
+func (us *UsersSelect) StringsX(ctx context.Context) []string {
+	v, err := us.Strings(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// String returns a single string from a selector. It is only allowed when selecting one field.
+func (us *UsersSelect) String(ctx context.Context) (_ string, err error) {
+	var v []string
+	if v, err = us.Strings(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = fmt.Errorf("ent: UsersSelect.Strings returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// StringX is like String, but panics if an error occurs.
+func (us *UsersSelect) StringX(ctx context.Context) string {
+	v, err := us.String(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Ints returns list of ints from a selector. It is only allowed when selecting one field.
+func (us *UsersSelect) Ints(ctx context.Context) ([]int, error) {
+	if len(us.fields) > 1 {
+		return nil, errors.New("ent: UsersSelect.Ints is not achievable when selecting more than 1 field")
+	}
+	var v []int
+	if err := us.Scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// IntsX is like Ints, but panics if an error occurs.
+func (us *UsersSelect) IntsX(ctx context.Context) []int {
+	v, err := us.Ints(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Int returns a single int from a selector. It is only allowed when selecting one field.
+func (us *UsersSelect) Int(ctx context.Context) (_ int, err error) {
+	var v []int
+	if v, err = us.Ints(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = fmt.Errorf("ent: UsersSelect.Ints returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// IntX is like Int, but panics if an error occurs.
+func (us *UsersSelect) IntX(ctx context.Context) int {
+	v, err := us.Int(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64s returns list of float64s from a selector. It is only allowed when selecting one field.
+func (us *UsersSelect) Float64s(ctx context.Context) ([]float64, error) {
+	if len(us.fields) > 1 {
+		return nil, errors.New("ent: UsersSelect.Float64s is not achievable when selecting more than 1 field")
+	}
+	var v []float64
+	if err := us.Scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// Float64sX is like Float64s, but panics if an error occurs.
+func (us *UsersSelect) Float64sX(ctx context.Context) []float64 {
+	v, err := us.Float64s(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Float64 returns a single float64 from a selector. It is only allowed when selecting one field.
+func (us *UsersSelect) Float64(ctx context.Context) (_ float64, err error) {
+	var v []float64
+	if v, err = us.Float64s(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = fmt.Errorf("ent: UsersSelect.Float64s returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// Float64X is like Float64, but panics if an error occurs.
+func (us *UsersSelect) Float64X(ctx context.Context) float64 {
+	v, err := us.Float64(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bools returns list of bools from a selector. It is only allowed when selecting one field.
+func (us *UsersSelect) Bools(ctx context.Context) ([]bool, error) {
+	if len(us.fields) > 1 {
+		return nil, errors.New("ent: UsersSelect.Bools is not achievable when selecting more than 1 field")
+	}
+	var v []bool
+	if err := us.Scan(ctx, &v); err != nil {
+		return nil, err
+	}
+	return v, nil
+}
+
+// BoolsX is like Bools, but panics if an error occurs.
+func (us *UsersSelect) BoolsX(ctx context.Context) []bool {
+	v, err := us.Bools(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+// Bool returns a single bool from a selector. It is only allowed when selecting one field.
+func (us *UsersSelect) Bool(ctx context.Context) (_ bool, err error) {
+	var v []bool
+	if v, err = us.Bools(ctx); err != nil {
+		return
+	}
+	switch len(v) {
+	case 1:
+		return v[0], nil
+	case 0:
+		err = &NotFoundError{users.Label}
+	default:
+		err = fmt.Errorf("ent: UsersSelect.Bools returned %d results when one was expected", len(v))
+	}
+	return
+}
+
+// BoolX is like Bool, but panics if an error occurs.
+func (us *UsersSelect) BoolX(ctx context.Context) bool {
+	v, err := us.Bool(ctx)
+	if err != nil {
+		panic(err)
+	}
+	return v
+}
+
+func (us *UsersSelect) sqlScan(ctx context.Context, v interface{}) error {
+	rows := &sql.Rows{}
+	query, args := us.sql.Query()
+	if err := us.driver.Query(ctx, query, args, rows); err != nil {
+		return err
+	}
+	defer rows.Close()
+	return sql.ScanSlice(rows, v)
+}

fly.toml

@@ -0,0 +1,29 @@
+# fly.toml file generated for ent on 2022-08-31T13:39:30+09:00
+
+app = "ent"
+kill_signal = "SIGINT"
+kill_timeout = 5
+
+[build]
+  builder = "paketobuildpacks/builder:base"
+  buildpacks = ["gcr.io/paketo-buildpacks/go"]
+
+[env]
+  PORT = "8080"
+
+[processes]
+  api = "bin/t"
+
+[[services]]
+  internal_port = 8080
+  processes = ["api"]
+  protocol = "tcp"
+
+  [[services.ports]]
+    force_https = true
+    handlers = ["http"]
+    port = 80
+
+  [[services.ports]]
+    handlers = ["tls", "http"]
+    port = 443

go.mod

@@ -0,0 +1,59 @@
+module t
+
+// +heroku goVersion go1.17
+go 1.17
+
+require (
+	entgo.io/ent v0.10.0
+	github.com/go-chi/chi/v5 v5.0.4
+	github.com/jackc/pgx/v4 v4.15.0
+	github.com/lib/pq v1.10.4
+	github.com/mailru/easyjson v0.7.7
+	go.uber.org/zap v1.21.0
+)
+
+require (
+	entgo.io/contrib v0.2.1-0.20220210075301-2b75bf138815 // indirect
+	github.com/apparentlymart/go-textseg/v13 v13.0.0 // indirect
+	github.com/ariga/ogent v0.0.0-20220224071349-f1dbffa2e32a // indirect
+	github.com/ghodss/yaml v1.0.0 // indirect
+	github.com/go-logr/logr v1.2.2 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-openapi/inflect v0.19.0 // indirect
+	github.com/golang/mock v1.6.0 // indirect
+	github.com/google/go-cmp v0.5.7 // indirect
+	github.com/jackc/chunkreader/v2 v2.0.1 // indirect
+	github.com/jackc/pgconn v1.11.0 // indirect
+	github.com/jackc/pgio v1.0.0 // indirect
+	github.com/jackc/pgpassfile v1.0.0 // indirect
+	github.com/jackc/pgproto3/v2 v2.2.0 // indirect
+	github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b // indirect
+	github.com/jackc/pgtype v1.10.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/kyokomi/lottery v1.2.0 // indirect
+	github.com/segmentio/asm v1.1.3 // indirect
+	github.com/uniplaces/carbon v0.1.6 // indirect
+	golang.org/x/crypto v0.0.0-20220112180741-5e0467b6c7ce // indirect
+	golang.org/x/mod v0.5.1 // indirect
+	golang.org/x/text v0.3.7 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+)
+
+require (
+	ariga.io/atlas v0.3.5 // indirect
+	github.com/agext/levenshtein v1.2.3 // indirect
+	github.com/go-faster/errors v0.5.0
+	github.com/go-faster/jx v0.32.2
+	github.com/google/uuid v1.3.0
+	github.com/hashicorp/hcl/v2 v2.11.1 // indirect
+	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
+	github.com/ogen-go/ogen v0.19.0
+	github.com/sergi/go-diff v1.1.0 // indirect
+	github.com/zclconf/go-cty v1.10.0 // indirect
+	go.opentelemetry.io/otel v1.4.1
+	go.opentelemetry.io/otel/metric v0.27.0
+	go.opentelemetry.io/otel/trace v1.4.1
+	go.uber.org/atomic v1.9.0 // indirect
+	go.uber.org/multierr v1.7.0 // indirect
+	golang.org/x/sys v0.0.0-20220222200937-f2425489ef4c // indirect
+)

main.go

@@ -0,0 +1,146 @@
+package main
+
+import (
+"strconv"
+	"time"
+	"t/ent"
+	"net/http"
+	"math/rand"
+	"context"
+	"log"
+	"os"
+	"database/sql"
+	entsql "entgo.io/ent/dialect/sql"
+	"entgo.io/ent/dialect"
+	_ "github.com/jackc/pgx/v4/stdlib"
+	_ "github.com/lib/pq"
+	"t/ent/ogent"
+	"entgo.io/ent/dialect/sql/schema"
+	"github.com/kyokomi/lottery"
+)
+
+type User struct {
+	user string `json:"user"`
+	created_at time.Time `json:"created_at"`
+}
+
+func Open(databaseUrl string) *ent.Client {
+	db, err := sql.Open("pgx", databaseUrl)
+	if err != nil {
+		log.Fatal(err)
+	}
+	drv := entsql.OpenDB(dialect.Postgres, db)
+	return ent.NewClient(ent.Driver(drv))
+}
+
+func Random(i int) (l int){
+	rand.Seed(time.Now().UnixNano())
+	l = rand.Intn(i)
+	for l == 0 {
+		l = rand.Intn(i)
+	}
+	return
+}
+
+func Kira(i int) (l bool){
+	lot := lottery.New(rand.New(rand.NewSource(time.Now().UnixNano())))
+	if lot.Lot(i) {
+		l = true
+	} else {
+		l = false
+	}
+	return
+}
+
+type handler struct {
+	*ogent.OgentHandler
+	client *ent.Client
+}
+
+
+func (h handler) DrawStart(ctx context.Context, params ogent.DrawStartParams) (ogent.DrawStartNoContent, error) {
+	return ogent.DrawStartNoContent{}, h.client.Users.UpdateOneID(params.ID).Exec(ctx)
+}
+
+func (h handler) DrawDone(ctx context.Context, params ogent.DrawDoneParams) (ogent.DrawDoneNoContent, error) {
+	body := h.client.Users.GetX(ctx, params.ID)
+	total := body.Day
+	total_n := total + 1
+	jst, err := time.LoadLocation("Asia/Tokyo")
+	if err != nil {
+		panic(err)
+	}
+	t := time.Now().In(jst)
+	tt := t.Format("20060102")
+	f := body.UpdatedAt.Add(time.Hour * 24 * 1).In(jst)
+	ff := f.Format("20060102")
+	fff := body.Next
+	if tt < fff {
+		return	ogent.DrawDoneNoContent{}, h.client.Users.UpdateOneID(params.ID).SetNext(ff).SetLimit(true).Exec(ctx)
+	} 
+
+	bb := h.client.Users.GetX(ctx, body.Battle)
+	ba := bb.Attack
+	aa := body.Attack
+	attack_p := aa - ba
+	win_n := body.Win + 1
+	pat := float64(win_n) / float64(total_n) * 100
+	var at int
+	if attack_p > 0 {
+		at = Random(55)
+	} else {
+		at = Random(45)
+	}
+	if at > 25 {
+	b := Random(4)
+	if b == 1 {
+		b := Random(10)
+		com := "attack+" + strconv.Itoa(b)
+		a := body.Attack + b
+		return ogent.DrawDoneNoContent{}, h.client.Users.UpdateOneID(params.ID).SetAttack(a).SetUpdatedAt(t).SetNext(ff).SetDay(total_n).SetWin(win_n).SetPercentage(pat).SetLimit(false).SetComment(com).Exec(ctx)
+	} else if b == 2 {
+		b := Random(10)
+		com := "defense+" + strconv.Itoa(b)
+		a := body.Defense + b
+		return ogent.DrawDoneNoContent{}, h.client.Users.UpdateOneID(params.ID).SetDefense(a).SetUpdatedAt(t).SetNext(ff).SetDay(total_n).SetWin(win_n).SetPercentage(pat).SetLimit(false).SetComment(com).Exec(ctx)
+	} else if b == 3 {
+		b := Random(10)
+		com := "hp+" + strconv.Itoa(b)
+		a := body.Hp + b
+		return ogent.DrawDoneNoContent{}, h.client.Users.UpdateOneID(params.ID).SetHp(a).SetUpdatedAt(t).SetNext(ff).SetDay(total_n).SetWin(win_n).SetPercentage(pat).SetComment(com).SetLimit(false).Exec(ctx)
+	} else {
+		b := Random(10)
+		com := "critical+" + strconv.Itoa(b)
+		a := body.Critical + b
+		return ogent.DrawDoneNoContent{}, h.client.Users.UpdateOneID(params.ID).SetCritical(a).SetUpdatedAt(t).SetNext(ff).SetDay(total_n).SetWin(win_n).SetPercentage(pat).SetComment(com).SetLimit(false).SetWin(win_n).Exec(ctx)
+	}
+} else {
+	com := "loss"
+		return ogent.DrawDoneNoContent{}, h.client.Users.UpdateOneID(params.ID).SetNext(ff).SetDay(total_n).SetComment(com).SetLimit(false).Exec(ctx)
+}
+}
+
+func main() {
+	url := os.Getenv("DATABASE_URL") + "?sslmode=require"
+	client, err := ent.Open("postgres", url)
+	//client, err := Open(url)
+	if err := client.Schema.Create(context.Background(), schema.WithAtlas(true)); err != nil {
+		log.Fatal(err)
+	}
+	port := os.Getenv("PORT")
+	if port == "" {
+		port = "8080"
+	}
+	h := handler{
+		OgentHandler: ogent.NewOgentHandler(client),
+		client:       client,
+	}
+	srv,err := ogent.NewServer(h)
+	//srv,err := ogent.NewServer(ogent.NewOgentHandler(client))
+	if err != nil {
+		log.Fatal(err)
+	}
+	if err := http.ListenAndServe(":" + port, srv); err != nil {
+		log.Fatal(err)
+	}
+}

readme.md

@@ -0,0 +1,78 @@
+heroku open-api ent example
+
+- go-module-name : t
+
+- onconflict
+
+```sh
+$ curl -X POST -H "Content-Type: application/json" -d '{"user":"syui"}' api.syui.cf/users
+...ok
+
+$ !!
+...err
+
+$ heroku logs
+```
+
+
+```sh
+# delete
+$ curl -X DELETE https://api.syui.cf/users/1
+
+# card draw
+$ curl -X PUT api.syui.cf/users/1/d
+$ curl api.syui.cf/users/1
+
+# patch
+$ curl -X PATCH -H "Content-Type: application/json" -d '{"battle":2}' api.syui.cf/users/1 
+$ curl -X PATCH -H "Content-Type: application/json" -d '{"limit":false}' api.syui.cf/users/1 
+$ d=`date "+%Y%m%d"`
+$ curl -X PATCH -H "Content-Type: application/json" -d "{\"next\":\"$d\"}" api.syui.cf/users/1 
+```
+
+```sh
+$ vim ./ent/ogent/ogent.go
+// 新規登録の停止
+// CreateUsers handles POST /users-slice requests.
+func (h *OgentHandler) CreateUsers(ctx context.Context, req CreateUsersReq) (CreateUsersRes, error) {
+	b := h.client.Users.Create()
+	//b.SetUser(req.User)
+	b.SetUser("syui")
+}
+
+// 削除の無効
+// DeleteUsers handles DELETE /users-slice/{id} requests.
+func (h *OgentHandler) DeleteUsers(ctx context.Context, params DeleteUsersParams) (DeleteUsersRes, error) {
+	if params.ID != 1 {
+err := h.client.Users.DeleteOneID(params.ID).Exec(ctx)
+	}
+	return new(DeleteUsersNoContent), nil
+}
+
+// 要素の書き換えの禁止
+// UpdateUsers handles PATCH /users-slice/{id} requests.
+func (h *OgentHandler) UpdateUsers(ctx context.Context, req UpdateUsersReq, params UpdateUsersParams) (UpdateUsersRes, error) {
+	b := h.client.Users.UpdateOneID(params.ID)
+	// Add all fields.
+	//if v, ok := req.Hp.Get(); ok {
+	//	b.SetHp(v)
+	//}
+```
+
+ref : 
+
+- https://github.com/ent/ent/blob/master/dialect/sql/schema/postgres_test.go
+
+- https://github.com/go-kratos/beer-shop/tree/main/app/catalog/service/internal/data/ent
+
+- https://entgo.io/ja/blog/2022/02/15/generate-rest-crud-with-ent-and-ogen/
+
+- https://github.com/ariga/ogent/blob/main/example/todo/ent/entc.go
+
+```sh
+$ vim ent/entc.go
+$ vim ent/schema/users.go
+$ go generate ./...
+$ go build
+$ ./t
+```