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<!-- Title -->
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<h1>
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<i class="fa fa-circle-o-notch fa-spin"></i>
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<a href=".." >reqwest</a>
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</h1>
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<section class="normal markdown-section">
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<h3 id="reqwest">reqwest</h3>
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<p>rustの<a href="https://github.com/seanmonstar/reqwest" target="_blank">seanmonstar/reqwest</a>を解説する前に、以下のコマンドを実行してみてください。</p>
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<pre><code class="lang-sh">$ curl <span class="hljs-_">-s</span>L <span class="hljs-string">"https://bsky.social/xrpc/com.atproto.repo.listRecords?repo=support.bsky.team&collection=app.bsky.feed.post"</span>
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</code></pre>
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<p>これは<a href="https://bsky.app/profile/did:plc:oc6vwdlmk2kqyida5i74d3p5" target="_blank">support.bsky.social</a>のtimelineを取得するapiを叩いています。</p>
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<p><code>reqwest</code>は主にapiを叩くためのrustのlibだという理解で構いません。</p>
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<p>では、実際にコードを書いてみます。</p>
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<div><p class="code-filename">Cargo.toml</p></div>
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<pre><code class="lang-toml"><span class="hljs-section">[package]</span>
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<span class="hljs-attr">name</span> = <span class="hljs-string">"rust"</span>
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<span class="hljs-attr">version</span> = <span class="hljs-string">"0.1.0"</span>
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<span class="hljs-attr">edition</span> = <span class="hljs-string">"2021"</span>
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<span class="hljs-section">
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[dependencies]</span>
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<span class="hljs-attr">seahorse</span> = <span class="hljs-string">"*"</span>
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<span class="hljs-attr">reqwest</span> = <span class="hljs-string">"*"</span>
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<span class="hljs-attr">tokio</span> = { version = <span class="hljs-string">"1"</span>, features = [<span class="hljs-string">"full"</span>] }
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</code></pre>
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<pre><code class="lang-src/main.rs">use seahorse::{App, Context, Command};
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use std::env;
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fn main() {
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let args: Vec<String> = env::args().collect();
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let app = App::new(env!("CARGO_PKG_NAME"))
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.action(s)
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.command(
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Command::new("yes")
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.alias("y")
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.action(y),
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)
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.command(
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Command::new("no")
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.alias("n")
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.action(n),
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)
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.command(
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Command::new("test")
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.alias("t")
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.action(|c| println!("Hello, {:?}", c.args)),
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)
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.command(
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Command::new("bluesky")
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.alias("b")
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.action(c_list_records),
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)
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;
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app.run(args);
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}
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fn s(_c: &Context) {
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println!("Hello, world!");
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}
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fn y(_c: &Context) {
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println!("yes");
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}
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fn n(_c: &Context) {
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println!("no");
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}
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#[tokio::main]
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async fn list_records() -> reqwest::Result<()> {
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let client = reqwest::Client::new();
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let handle= "support.bsky.team";
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let col = "app.bsky.feed.post";
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let body = client.get("https://bsky.social/xrpc/com.atproto.repo.listRecords")
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.query(&[("repo", &handle),("collection", &col)])
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.send()
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.await?
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.text()
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.await?;
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println!("{}", body);
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Ok(())
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}
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fn c_list_records(_c: &Context) {
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list_records().unwrap();
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}
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</code></pre>
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<p>これを<code>cargo build</code>していつものようにコマンドを実行します。</p>
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<pre><code class="lang-sh">$ ./target/debug/rust b
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</code></pre>
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<p>以降は<code>example</code>、つまり無駄なコマンドオプションを削除したコードを記述します。</p>
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<p>コードの要点は以下の通り。</p>
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<pre><code class="lang-src/main.rs">.command(
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Command::new("bluesky")
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.alias("b")
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.action(c_list_records),
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)
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#[tokio::main]
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async fn list_records() -> reqwest::Result<()> {
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let client = reqwest::Client::new();
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let handle= "support.bsky.team";
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let col = "app.bsky.feed.post";
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let body = client.get("https://bsky.social/xrpc/com.atproto.repo.listRecords")
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.query(&[("repo", &handle),("collection", &col)])
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.send()
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.await?
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.text()
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.await?;
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println!("{}", body);
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Ok(())
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}
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fn c_list_records(_c: &Context) {
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list_records().unwrap();
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}
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</code></pre>
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<h4 id="query">query</h4>
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<p><code>query</code>の追加をしてみます。これで出力が1行になり、古い順になります。</p>
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<div><p class="code-filename">src/main.rs</p></div>
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<pre><code class="lang-rust">async <span class="hljs-function"><span class="hljs-keyword">fn</span> <span class="hljs-title">list_records</span></span>() -> reqwest::<span class="hljs-built_in">Result</span><()> {
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<span class="hljs-keyword">let</span> client = reqwest::Client::new();
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<span class="hljs-keyword">let</span> handle= <span class="hljs-string">"support.bsky.team"</span>;
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<span class="hljs-keyword">let</span> col = <span class="hljs-string">"app.bsky.feed.post"</span>;
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<span class="hljs-keyword">let</span> body = client.get(<span class="hljs-string">"https://bsky.social/xrpc/com.atproto.repo.listRecords"</span>)
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<span class="hljs-comment">//.query(&[("repo", &handle),("collection", &col)])</span>
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.query(&[(<span class="hljs-string">"repo"</span>, &handle),(<span class="hljs-string">"collection"</span>, &col),(<span class="hljs-string">"limit"</span>, &<span class="hljs-string">"1"</span>),(<span class="hljs-string">"revert"</span>, &<span class="hljs-string">"true"</span>)])
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.send()
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.await?
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.text()
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.await?;
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<span class="hljs-built_in">println!</span>(<span class="hljs-string">"{}"</span>, body);
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<span class="hljs-literal">Ok</span>(())
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}
|
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</code></pre>
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</section>
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</div>
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<div class="search-results">
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<div class="has-results">
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<h1 class="search-results-title"><span class='search-results-count'></span> results matching "<span class='search-query'></span>"</h1>
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</div>
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<div class="no-results">
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<h1 class="search-results-title">No results matching "<span class='search-query'></span>"</h1>
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</div>
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</div>
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</div>
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<a href="2.html" class="navigation navigation-prev " aria-label="Previous page: seahorse">
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<i class="fa fa-angle-left"></i>
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</a>
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<a href="../c4/" class="navigation navigation-next " aria-label="Next page: part 4">
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<i class="fa fa-angle-right"></i>
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</a>
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</div>
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<script>
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var gitbook = gitbook || [];
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gitbook.push(function() {
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