fix

book/node_modules/@szmarczak/http-timer/dist/source/index.d.ts

@@ -0,0 +1,32 @@
+/// <reference types="node" />
+import type { ClientRequest, IncomingMessage } from 'http';
+export interface Timings {
+    start: number;
+    socket?: number;
+    lookup?: number;
+    connect?: number;
+    secureConnect?: number;
+    upload?: number;
+    response?: number;
+    end?: number;
+    error?: number;
+    abort?: number;
+    phases: {
+        wait?: number;
+        dns?: number;
+        tcp?: number;
+        tls?: number;
+        request?: number;
+        firstByte?: number;
+        download?: number;
+        total?: number;
+    };
+}
+export interface ClientRequestWithTimings extends ClientRequest {
+    timings?: Timings;
+}
+export interface IncomingMessageWithTimings extends IncomingMessage {
+    timings?: Timings;
+}
+declare const timer: (request: ClientRequestWithTimings) => Timings;
+export default timer;

book/node_modules/@szmarczak/http-timer/dist/source/index.js

@@ -0,0 +1,106 @@
+import { errorMonitor } from 'events';
+import { types } from 'util';
+import deferToConnect from 'defer-to-connect';
+const timer = (request) => {
+    if (request.timings) {
+        return request.timings;
+    }
+    const timings = {
+        start: Date.now(),
+        socket: undefined,
+        lookup: undefined,
+        connect: undefined,
+        secureConnect: undefined,
+        upload: undefined,
+        response: undefined,
+        end: undefined,
+        error: undefined,
+        abort: undefined,
+        phases: {
+            wait: undefined,
+            dns: undefined,
+            tcp: undefined,
+            tls: undefined,
+            request: undefined,
+            firstByte: undefined,
+            download: undefined,
+            total: undefined,
+        },
+    };
+    request.timings = timings;
+    const handleError = (origin) => {
+        origin.once(errorMonitor, () => {
+            timings.error = Date.now();
+            timings.phases.total = timings.error - timings.start;
+        });
+    };
+    handleError(request);
+    const onAbort = () => {
+        timings.abort = Date.now();
+        timings.phases.total = timings.abort - timings.start;
+    };
+    request.prependOnceListener('abort', onAbort);
+    const onSocket = (socket) => {
+        timings.socket = Date.now();
+        timings.phases.wait = timings.socket - timings.start;
+        if (types.isProxy(socket)) {
+            return;
+        }
+        const lookupListener = () => {
+            timings.lookup = Date.now();
+            timings.phases.dns = timings.lookup - timings.socket;
+        };
+        socket.prependOnceListener('lookup', lookupListener);
+        deferToConnect(socket, {
+            connect: () => {
+                timings.connect = Date.now();
+                if (timings.lookup === undefined) {
+                    socket.removeListener('lookup', lookupListener);
+                    timings.lookup = timings.connect;
+                    timings.phases.dns = timings.lookup - timings.socket;
+                }
+                timings.phases.tcp = timings.connect - timings.lookup;
+            },
+            secureConnect: () => {
+                timings.secureConnect = Date.now();
+                timings.phases.tls = timings.secureConnect - timings.connect;
+            },
+        });
+    };
+    if (request.socket) {
+        onSocket(request.socket);
+    }
+    else {
+        request.prependOnceListener('socket', onSocket);
+    }
+    const onUpload = () => {
+        timings.upload = Date.now();
+        timings.phases.request = timings.upload - (timings.secureConnect ?? timings.connect);
+    };
+    if (request.writableFinished) {
+        onUpload();
+    }
+    else {
+        request.prependOnceListener('finish', onUpload);
+    }
+    request.prependOnceListener('response', (response) => {
+        timings.response = Date.now();
+        timings.phases.firstByte = timings.response - timings.upload;
+        response.timings = timings;
+        handleError(response);
+        response.prependOnceListener('end', () => {
+            request.off('abort', onAbort);
+            response.off('aborted', onAbort);
+            if (timings.phases.total) {
+                // Aborted or errored
+                return;
+            }
+            timings.end = Date.now();
+            timings.phases.download = timings.end - timings.response;
+            timings.phases.total = timings.end - timings.start;
+        });
+        response.prependOnceListener('aborted', onAbort);
+    });
+    return timings;
+};
+export default timer;