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hello world! bluesky
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<h3 id="refresh">refresh</h3>
<p>今までは<code>createSession</code>で都度、tokenを取得し、新しいsessionを作成してきました。</p>
<p>これらsessionは2時間有効で、apiを呼び出すたびにsessionを作成していると有効なsessionがいくつもできてしまいます。</p>
<p>そして、それぞれが2時間後に無効になります。</p>
<p>これを回避する方法としては、<code>refreshSession</code>があります。<code>refresh-token</code>とも呼ばれます。</p>
<p>基本的には、<code>https://bsky.social/xrpc/com.atproto.server.refreshSession</code>にtokenとして<code>refreshJwt</code>を指定するだけです。</p>
<pre><code class="lang-sh">$ cat ~/.config/atr/token.json|jq -r .refreshJwt
$ refresh=`cat ~/.config/atr/token.json|jq -r .refreshJwt`
$ curl <span class="hljs-_">-s</span>L -X POST -H <span class="hljs-string">"Content-Type: application/json"</span> -H <span class="hljs-string">"Authorization: Bearer <span class="hljs-variable">$refresh</span>"</span> https://bsky.social/xrpc/com.atproto.server.refreshSession
</code></pre>
<p>これを保存しておけば、約2ヶ月有効だそうです。</p>
<p>これを<code>rust</code>で書いてみると、こんな感じになります。</p>
<div><p class="code-filename">src/refresh.rs</p></div>
<pre><code class="lang-rust"><span class="hljs-keyword">extern</span> <span class="hljs-keyword">crate</span> reqwest;
<span class="hljs-keyword">use</span> crate::token_toml;
<span class="hljs-keyword">use</span> crate::url;
<span class="hljs-keyword">use</span> serde_json::json;
<span class="hljs-keyword">pub</span> async <span class="hljs-function"><span class="hljs-keyword">fn</span> <span class="hljs-title">post_request</span></span>() -> <span class="hljs-built_in">String</span> {
<span class="hljs-keyword">let</span> access = token_toml(&<span class="hljs-string">"access"</span>);
<span class="hljs-keyword">let</span> refresh = token_toml(&<span class="hljs-string">"refresh"</span>);
<span class="hljs-keyword">let</span> did = token_toml(&<span class="hljs-string">"did"</span>);
<span class="hljs-keyword">let</span> handle = token_toml(&<span class="hljs-string">"handle"</span>);
<span class="hljs-keyword">let</span> url = url(&<span class="hljs-string">"session_refresh"</span>);
<span class="hljs-keyword">let</span> client = reqwest::Client::new();
<span class="hljs-keyword">let</span> res = client
.post(url)
.header(<span class="hljs-string">"Authorization"</span>, <span class="hljs-string">"Bearer "</span>.to_owned() + &refresh)
.send()
.await
.unwrap()
.text()
.await
.unwrap();
<span class="hljs-keyword">return</span> res
}
</code></pre>
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