doc: update docs/fastapi.md (#424) fab09b1f13

2025-06-18 05:01:21 +08:00 · 2023-09-05 05:03:15 +00:00
parent b1f6bc1923
commit cb64608cfa
5 changed files with 166 additions and 25 deletions
--- a/CONTRIBUTORS.svg
+++ b/CONTRIBUTORS.svg
--- a/data.js
+++ b/data.js
--- a/data.json
+++ b/data.json
--- a/docs/fastapi.html
+++ b/docs/fastapi.html
@ -33,7 +33,7 @@
 <p>FastAPI 是一个用于构建 API 的现代、快速（高性能）的 web 框架，使用 Python 3.6+ 并基于标准的 Python 类型提示。Python: <code>3.9.5</code>   FastAPI: <code>0.103.1</code></p>
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-</svg></div><div class="menu-modal"><a aria-hidden="true" class="leve2 tocs-link" data-num="2" href="#入门">入门</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#最小程序">最小程序</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#路径参数">路径参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#最基本的路径参数">最基本的路径参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#多个路径参数">多个路径参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#有类型的路径参数">有类型的路径参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#文件路径参数">文件路径参数</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#查询参数">查询参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#带默认值的查询参数">带默认值的查询参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#可选查询参数">可选查询参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#多路径多查询参数">多路径多查询参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#必需查询参数">必需查询参数</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#请求体">请求体</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#调用">调用</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#查询参数和字符串校验">查询参数和字符串校验</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#参数列表">参数列表</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#多个相同的查询参数">多个相同的查询参数</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#路径参数和数值校验">路径参数和数值校验</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#导入-path">导入 Path</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#声明元数据">声明元数据</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#参数列表-1">参数列表</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#其他参数">其他参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#cookie参数">Cookie参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#header-参数">Header 参数</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#表单数据">表单数据</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#安装">安装</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#html">HTML</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#fastapi">FastAPI</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#文件上传">文件上传</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#uploadfile属性">UploadFile属性</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#uploadfile-async方法">UploadFile async方法</a><a aria-hidden="true" class="leve2 tocs-link" data-num="2" href="#参考">参考</a></div></div><div class="h1wrap-body"><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="入门"><a aria-hidden="true" tabindex="-1" href="#入门"><span class="icon icon-link"></span></a>入门</h2><div class="wrap-body">
+</svg></div><div class="menu-modal"><a aria-hidden="true" class="leve2 tocs-link" data-num="2" href="#入门">入门</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#最小程序">最小程序</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#路径参数">路径参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#最基本的路径参数">最基本的路径参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#多个路径参数">多个路径参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#有类型的路径参数">有类型的路径参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#文件路径参数">文件路径参数</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#查询参数">查询参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#带默认值的查询参数">带默认值的查询参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#可选查询参数">可选查询参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#多路径多查询参数">多路径多查询参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#必需查询参数">必需查询参数</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#请求体">请求体</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#调用">调用</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#查询参数和字符串校验">查询参数和字符串校验</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#参数列表">参数列表</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#多个相同的查询参数">多个相同的查询参数</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#路径参数和数值校验">路径参数和数值校验</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#导入-path">导入 Path</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#声明元数据">声明元数据</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#参数列表-1">参数列表</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#其他参数">其他参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#cookie参数">Cookie参数</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#header-参数">Header 参数</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#表单数据">表单数据</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#安装">安装</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#html">HTML</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#fastapi">FastAPI</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#文件上传">文件上传</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#uploadfile属性">UploadFile属性</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#uploadfile-async方法">UploadFile async方法</a><a aria-hidden="true" class="leve2 tocs-link" data-num="2" href="#依赖项">依赖项</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#依赖项使用场景">依赖项使用场景</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#创建依赖项">创建依赖项</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#类作为依赖项">类作为依赖项</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#还可以简写">还可以简写</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#子依赖项">子依赖项</a><a aria-hidden="true" class="leve4 tocs-link" data-num="4" href="#不使用缓存">不使用缓存</a><a aria-hidden="true" class="leve3 tocs-link" data-num="3" href="#全局依赖项">全局依赖项</a><a aria-hidden="true" class="leve2 tocs-link" data-num="2" href="#安全性">安全性</a><a aria-hidden="true" class="leve2 tocs-link" data-num="2" href="#参考">参考</a></div></div><div class="h1wrap-body"><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="入门"><a aria-hidden="true" tabindex="-1" href="#入门"><span class="icon icon-link"></span></a>入门</h2><div class="wrap-body">
 <!--rehype:body-class=cols-1-->
 </div></div><div class="h2wrap-body cols-1"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="最小程序"><a aria-hidden="true" tabindex="-1" href="#最小程序"><span class="icon icon-link"></span></a>最小程序</h3><div class="wrap-body">
 <p>下面代码会直接启动http服务，也可以使用 <code>uvicorn main:app --reload</code></p>
@ -374,7 +374,148 @@


 <table><thead><tr><th>方法名</th><th>含义</th></tr></thead><tbody><tr><td>write(data)</td><td>把 <code>data</code> 写入文件</td></tr><tr><td>read(size)</td><td>按指定数量的字节读取文件内容</td></tr><tr><td>seek(offset)</td><td>移动至文件 <code>offset</code> （<code>int</code>）字节处的位置</td></tr><tr><td>close()</td><td>关闭文件</td></tr></tbody></table>
-</div></div></div></div></div><div class="wrap h2body-not-exist"><div class="wrap-header h2wrap"><h2 id="参考"><a aria-hidden="true" tabindex="-1" href="#参考"><span class="icon icon-link"></span></a>参考</h2><div class="wrap-body">
+</div></div></div></div></div><div class="wrap h2body-exist"><div class="wrap-header h2wrap"><h2 id="依赖项"><a aria-hidden="true" tabindex="-1" href="#依赖项"><span class="icon icon-link"></span></a>依赖项</h2><div class="wrap-body">
+<!--rehype:body-class=cols-1-->
+</div></div><div class="h2wrap-body cols-1"><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="依赖项使用场景"><a aria-hidden="true" tabindex="-1" href="#依赖项使用场景"><span class="icon icon-link"></span></a>依赖项使用场景</h3><div class="wrap-body">
+<ul>
+<li>共享业务逻辑（复用相同的代码逻辑）</li>
+<li>共享数据库连接</li>
+<li>实现安全、验证、角色权限</li>
+<li>等……</li>
+</ul>
+</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="创建依赖项"><a aria-hidden="true" tabindex="-1" href="#创建依赖项"><span class="icon icon-link"></span></a>创建依赖项</h3><div class="wrap-body">
+<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token keyword">from</span> typing <span class="token keyword">import</span> Union
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">from</span> fastapi <span class="token keyword">import</span> Depends<span class="token punctuation">,</span> FastAPI
+</span><span class="code-line">
+</span><span class="code-line">app <span class="token operator">=</span> FastAPI<span class="token punctuation">(</span><span class="token punctuation">)</span>
+</span><span class="code-line">
+</span><span class="code-line"><span class="token comment"># read_items和read_users方法依赖common_parameters</span>
+</span><span class="code-line"><span class="token comment"># 白话就是read_items和read_users都需要q，skip，limit查询参数</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">common_parameters</span><span class="token punctuation">(</span>
+</span><span class="code-line">    q<span class="token punctuation">:</span> Union<span class="token punctuation">[</span><span class="token builtin">str</span><span class="token punctuation">,</span> <span class="token boolean">None</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token boolean">None</span><span class="token punctuation">,</span> skip<span class="token punctuation">:</span> <span class="token builtin">int</span> <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">,</span> limit<span class="token punctuation">:</span> <span class="token builtin">int</span> <span class="token operator">=</span> <span class="token number">100</span>
+</span><span class="code-line"><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> <span class="token punctuation">{</span><span class="token string">"q"</span><span class="token punctuation">:</span> q<span class="token punctuation">,</span> <span class="token string">"skip"</span><span class="token punctuation">:</span> skip<span class="token punctuation">,</span> <span class="token string">"limit"</span><span class="token punctuation">:</span> limit<span class="token punctuation">}</span>
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token decorator annotation punctuation">@app<span class="token punctuation">.</span>get</span><span class="token punctuation">(</span><span class="token string">"/items/"</span><span class="token punctuation">)</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">read_items</span><span class="token punctuation">(</span>commons<span class="token punctuation">:</span> <span class="token builtin">dict</span> <span class="token operator">=</span> Depends<span class="token punctuation">(</span>common_parameters<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> commons
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token decorator annotation punctuation">@app<span class="token punctuation">.</span>get</span><span class="token punctuation">(</span><span class="token string">"/users/"</span><span class="token punctuation">)</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">read_users</span><span class="token punctuation">(</span>commons<span class="token punctuation">:</span> <span class="token builtin">dict</span> <span class="token operator">=</span> Depends<span class="token punctuation">(</span>common_parameters<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> commons
+</span></code></pre>
+</div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="类作为依赖项"><a aria-hidden="true" tabindex="-1" href="#类作为依赖项"><span class="icon icon-link"></span></a>类作为依赖项</h3><div class="wrap-body">
+<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token keyword">from</span> typing <span class="token keyword">import</span> Union
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">from</span> fastapi <span class="token keyword">import</span> Depends<span class="token punctuation">,</span> FastAPI
+</span><span class="code-line">
+</span><span class="code-line">app <span class="token operator">=</span> FastAPI<span class="token punctuation">(</span><span class="token punctuation">)</span>
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line">fake_items_db <span class="token operator">=</span> <span class="token punctuation">[</span><span class="token punctuation">{</span><span class="token string">"item_name"</span><span class="token punctuation">:</span> <span class="token string">"Foo"</span><span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token string">"item_name"</span><span class="token punctuation">:</span> <span class="token string">"Bar"</span><span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token string">"item_name"</span><span class="token punctuation">:</span> <span class="token string">"Baz"</span><span class="token punctuation">}</span><span class="token punctuation">]</span>
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">class</span> <span class="token class-name">CommonQueryParams</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">def</span> <span class="token function">__init__</span><span class="token punctuation">(</span>self<span class="token punctuation">,</span> q<span class="token punctuation">:</span> Union<span class="token punctuation">[</span><span class="token builtin">str</span><span class="token punctuation">,</span> <span class="token boolean">None</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token boolean">None</span><span class="token punctuation">,</span> skip<span class="token punctuation">:</span> <span class="token builtin">int</span> <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">,</span> limit<span class="token punctuation">:</span> <span class="token builtin">int</span> <span class="token operator">=</span> <span class="token number">100</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">        self<span class="token punctuation">.</span>q <span class="token operator">=</span> q
+</span><span class="code-line">        self<span class="token punctuation">.</span>skip <span class="token operator">=</span> skip
+</span><span class="code-line">        self<span class="token punctuation">.</span>limit <span class="token operator">=</span> limit
+</span><span class="code-line">
+</span><span class="code-line"><span class="token comment"># read_itemsx接收一个commons参数，类型是CommonQueryParams</span>
+</span><span class="code-line"><span class="token comment"># CommonQueryParams接收三个参数，这三个参数是调用api的时候传</span>
+</span><span class="code-line"><span class="token decorator annotation punctuation">@app<span class="token punctuation">.</span>get</span><span class="token punctuation">(</span><span class="token string">"/items/"</span><span class="token punctuation">)</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">read_items</span><span class="token punctuation">(</span>commons<span class="token punctuation">:</span> CommonQueryParams <span class="token operator">=</span> Depends<span class="token punctuation">(</span>CommonQueryParams<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    response <span class="token operator">=</span> <span class="token punctuation">{</span><span class="token punctuation">}</span>
+</span><span class="code-line">    <span class="token keyword">if</span> commons<span class="token punctuation">.</span>q<span class="token punctuation">:</span>
+</span><span class="code-line">        response<span class="token punctuation">.</span>update<span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token string">"q"</span><span class="token punctuation">:</span> commons<span class="token punctuation">.</span>q<span class="token punctuation">}</span><span class="token punctuation">)</span>
+</span><span class="code-line">    items <span class="token operator">=</span> fake_items_db<span class="token punctuation">[</span>commons<span class="token punctuation">.</span>skip <span class="token punctuation">:</span> commons<span class="token punctuation">.</span>skip <span class="token operator">+</span> commons<span class="token punctuation">.</span>limit<span class="token punctuation">]</span>
+</span><span class="code-line">    response<span class="token punctuation">.</span>update<span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token string">"items"</span><span class="token punctuation">:</span> items<span class="token punctuation">}</span><span class="token punctuation">)</span>
+</span><span class="code-line">    <span class="token keyword">return</span> response
+</span></code></pre>
+<h4 id="还可以简写"><a aria-hidden="true" tabindex="-1" href="#还可以简写"><span class="icon icon-link"></span></a>还可以简写</h4>
+<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token decorator annotation punctuation">@app<span class="token punctuation">.</span>get</span><span class="token punctuation">(</span><span class="token string">"/items/"</span><span class="token punctuation">)</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">read_items</span><span class="token punctuation">(</span>commons<span class="token punctuation">:</span> CommonQueryParams <span class="token operator">=</span> Depends<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span> <span class="token comment"># 这里的Depends没有传参，FastAPI会自动使用CommonQueryParams</span>
+</span><span class="code-line">    response <span class="token operator">=</span> <span class="token punctuation">{</span><span class="token punctuation">}</span>
+</span><span class="code-line">    <span class="token keyword">if</span> commons<span class="token punctuation">.</span>q<span class="token punctuation">:</span>
+</span><span class="code-line">        response<span class="token punctuation">.</span>update<span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token string">"q"</span><span class="token punctuation">:</span> commons<span class="token punctuation">.</span>q<span class="token punctuation">}</span><span class="token punctuation">)</span>
+</span><span class="code-line">    items <span class="token operator">=</span> fake_items_db<span class="token punctuation">[</span>commons<span class="token punctuation">.</span>skip <span class="token punctuation">:</span> commons<span class="token punctuation">.</span>skip <span class="token operator">+</span> commons<span class="token punctuation">.</span>limit<span class="token punctuation">]</span>
+</span><span class="code-line">    response<span class="token punctuation">.</span>update<span class="token punctuation">(</span><span class="token punctuation">{</span><span class="token string">"items"</span><span class="token punctuation">:</span> items<span class="token punctuation">}</span><span class="token punctuation">)</span>
+</span><span class="code-line">    <span class="token keyword">return</span> response
+</span></code></pre>
+</div></div></div><div class="wrap h3body-exist"><div class="wrap-header h3wrap"><h3 id="子依赖项"><a aria-hidden="true" tabindex="-1" href="#子依赖项"><span class="icon icon-link"></span></a>子依赖项</h3><div class="wrap-body">
+<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token keyword">from</span> typing <span class="token keyword">import</span> Union
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">from</span> fastapi <span class="token keyword">import</span> Cookie<span class="token punctuation">,</span> Depends<span class="token punctuation">,</span> FastAPI
+</span><span class="code-line">
+</span><span class="code-line">app <span class="token operator">=</span> FastAPI<span class="token punctuation">(</span><span class="token punctuation">)</span>
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">def</span> <span class="token function">query_extractor</span><span class="token punctuation">(</span>q<span class="token punctuation">:</span> Union<span class="token punctuation">[</span><span class="token builtin">str</span><span class="token punctuation">,</span> <span class="token boolean">None</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token boolean">None</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> q
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">def</span> <span class="token function">query_or_cookie_extractor</span><span class="token punctuation">(</span>
+</span><span class="code-line">    q<span class="token punctuation">:</span> <span class="token builtin">str</span> <span class="token operator">=</span> Depends<span class="token punctuation">(</span>query_extractor<span class="token punctuation">)</span><span class="token punctuation">,</span>
+</span><span class="code-line">    last_query<span class="token punctuation">:</span> Union<span class="token punctuation">[</span><span class="token builtin">str</span><span class="token punctuation">,</span> <span class="token boolean">None</span><span class="token punctuation">]</span> <span class="token operator">=</span> Cookie<span class="token punctuation">(</span>default<span class="token operator">=</span><span class="token boolean">None</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
+</span><span class="code-line"><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">if</span> <span class="token keyword">not</span> q<span class="token punctuation">:</span>
+</span><span class="code-line">        <span class="token keyword">return</span> last_query
+</span><span class="code-line">    <span class="token keyword">return</span> q
+</span><span class="code-line">
+</span><span class="code-line"><span class="token comment"># read_query函数依赖query_or_cookie_extractor函数</span>
+</span><span class="code-line"><span class="token comment"># query_or_cookie_extractor函数又依赖query_extractor函数</span>
+</span><span class="code-line"><span class="token comment"># 就是说依赖项可以依赖其他依赖项，只要你不晕，可以无数次套娃</span>
+</span><span class="code-line"><span class="token decorator annotation punctuation">@app<span class="token punctuation">.</span>get</span><span class="token punctuation">(</span><span class="token string">"/items/"</span><span class="token punctuation">)</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">read_query</span><span class="token punctuation">(</span>query_or_default<span class="token punctuation">:</span> <span class="token builtin">str</span> <span class="token operator">=</span> Depends<span class="token punctuation">(</span>query_or_cookie_extractor<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> <span class="token punctuation">{</span><span class="token string">"q_or_cookie"</span><span class="token punctuation">:</span> query_or_default<span class="token punctuation">}</span>
+</span></code></pre>
+<h4 id="不使用缓存"><a aria-hidden="true" tabindex="-1" href="#不使用缓存"><span class="icon icon-link"></span></a>不使用缓存</h4>
+<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token comment"># 使用use_cache = False参数不使用缓存数据</span>
+</span><span class="code-line"><span class="token comment"># 不使用use_cache = False,value和value1是一样的</span>
+</span><span class="code-line"><span class="token keyword">def</span> <span class="token function">result_value</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    value <span class="token operator">=</span> randint<span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">,</span> <span class="token number">99</span><span class="token punctuation">)</span>
+</span><span class="code-line">    <span class="token keyword">return</span> value
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">def</span> <span class="token function">get_value</span><span class="token punctuation">(</span>value<span class="token punctuation">:</span> <span class="token builtin">int</span> <span class="token operator">=</span> Depends<span class="token punctuation">(</span>result_value<span class="token punctuation">,</span> use_cache<span class="token operator">=</span><span class="token boolean">False</span><span class="token punctuation">)</span><span class="token punctuation">,</span> value1<span class="token punctuation">:</span> <span class="token builtin">int</span> <span class="token operator">=</span> Depends<span class="token punctuation">(</span>result_value<span class="token punctuation">,</span> use_cache<span class="token operator">=</span><span class="token boolean">False</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> value<span class="token punctuation">,</span> value1
+</span><span class="code-line">
+</span><span class="code-line"><span class="token decorator annotation punctuation">@app<span class="token punctuation">.</span>get</span><span class="token punctuation">(</span><span class="token string">'/value/'</span><span class="token punctuation">)</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">needy_dependency</span><span class="token punctuation">(</span>value<span class="token punctuation">:</span> <span class="token builtin">tuple</span> <span class="token operator">=</span> Depends<span class="token punctuation">(</span>get_value<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> <span class="token punctuation">{</span><span class="token string">"value"</span><span class="token punctuation">:</span> value<span class="token punctuation">}</span>
+</span></code></pre>
+</div></div></div><div class="wrap h3body-not-exist"><div class="wrap-header h3wrap"><h3 id="全局依赖项"><a aria-hidden="true" tabindex="-1" href="#全局依赖项"><span class="icon icon-link"></span></a>全局依赖项</h3><div class="wrap-body">
+<pre class="language-python"><code class="language-python code-highlight"><span class="code-line"><span class="token keyword">from</span> fastapi <span class="token keyword">import</span> Depends<span class="token punctuation">,</span> FastAPI<span class="token punctuation">,</span> Header<span class="token punctuation">,</span> HTTPException
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">verify_token</span><span class="token punctuation">(</span>x_token<span class="token punctuation">:</span> <span class="token builtin">str</span> <span class="token operator">=</span> Header<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">if</span> x_token <span class="token operator">!=</span> <span class="token string">"fake-super-secret-token"</span><span class="token punctuation">:</span>
+</span><span class="code-line">        <span class="token keyword">raise</span> HTTPException<span class="token punctuation">(</span>status_code<span class="token operator">=</span><span class="token number">400</span><span class="token punctuation">,</span> detail<span class="token operator">=</span><span class="token string">"X-Token header invalid"</span><span class="token punctuation">)</span>
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">verify_key</span><span class="token punctuation">(</span>x_key<span class="token punctuation">:</span> <span class="token builtin">str</span> <span class="token operator">=</span> Header<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">if</span> x_key <span class="token operator">!=</span> <span class="token string">"fake-super-secret-key"</span><span class="token punctuation">:</span>
+</span><span class="code-line">        <span class="token keyword">raise</span> HTTPException<span class="token punctuation">(</span>status_code<span class="token operator">=</span><span class="token number">400</span><span class="token punctuation">,</span> detail<span class="token operator">=</span><span class="token string">"X-Key header invalid"</span><span class="token punctuation">)</span>
+</span><span class="code-line">    <span class="token keyword">return</span> x_key
+</span><span class="code-line">
+</span><span class="code-line"><span class="token comment"># 全局依赖项很有用，后面的安全性就可以使用全局依赖项</span>
+</span><span class="code-line">app <span class="token operator">=</span> FastAPI<span class="token punctuation">(</span>dependencies<span class="token operator">=</span><span class="token punctuation">[</span>Depends<span class="token punctuation">(</span>verify_token<span class="token punctuation">)</span><span class="token punctuation">,</span> Depends<span class="token punctuation">(</span>verify_key<span class="token punctuation">)</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token decorator annotation punctuation">@app<span class="token punctuation">.</span>get</span><span class="token punctuation">(</span><span class="token string">"/items/"</span><span class="token punctuation">)</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">read_items</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> <span class="token punctuation">[</span><span class="token punctuation">{</span><span class="token string">"item"</span><span class="token punctuation">:</span> <span class="token string">"Portal Gun"</span><span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token string">"item"</span><span class="token punctuation">:</span> <span class="token string">"Plumbus"</span><span class="token punctuation">}</span><span class="token punctuation">]</span>
+</span><span class="code-line">
+</span><span class="code-line">
+</span><span class="code-line"><span class="token decorator annotation punctuation">@app<span class="token punctuation">.</span>get</span><span class="token punctuation">(</span><span class="token string">"/users/"</span><span class="token punctuation">)</span>
+</span><span class="code-line"><span class="token keyword">async</span> <span class="token keyword">def</span> <span class="token function">read_users</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span>
+</span><span class="code-line">    <span class="token keyword">return</span> <span class="token punctuation">[</span><span class="token punctuation">{</span><span class="token string">"username"</span><span class="token punctuation">:</span> <span class="token string">"Rick"</span><span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token punctuation">{</span><span class="token string">"username"</span><span class="token punctuation">:</span> <span class="token string">"Morty"</span><span class="token punctuation">}</span><span class="token punctuation">]</span>
+</span></code></pre>
+</div></div></div></div></div><div class="wrap h2body-not-exist"><div class="wrap-header h2wrap"><h2 id="安全性"><a aria-hidden="true" tabindex="-1" href="#安全性"><span class="icon icon-link"></span></a>安全性</h2><div class="wrap-body">
+<p>待更新</p>
+</div></div><div class="h2wrap-body"></div></div><div class="wrap h2body-not-exist"><div class="wrap-header h2wrap"><h2 id="参考"><a aria-hidden="true" tabindex="-1" href="#参考"><span class="icon icon-link"></span></a>参考</h2><div class="wrap-body">
 <ul>
 <li><a href="./python.html">Python 备忘清单</a> <em>(jaywcjlove.github.io)</em></li>
 <li><a href="https://fastapi.tiangolo.com/zh/tutorial/">FastAPI 官方文档</a> <em>(fastapi.tiangolo.com)</em></li>
--- a/index.html
+++ b/index.html
@ -866,6 +866,9 @@
 <a href="https://github.com/XYZscratcher" title="XYZ">
  <img src="https://avatars.githubusercontent.com/u/108533817?v=4" width="42;" alt="XYZ">
 </a>
+<a href="https://github.com/k23223" title="k23223">
+  <img src="https://avatars.githubusercontent.com/u/57606136?v=4" width="42;" alt="k23223">
+</a>
 <a href="https://github.com/1834423612" title="kjch">
  <img src="https://avatars.githubusercontent.com/u/49981661?v=4" width="42;" alt="kjch">
 </a>
@ -893,8 +896,8 @@
 <a href="https://github.com/13812700839" title="花殇">
  <img src="https://avatars.githubusercontent.com/u/58072506?v=4" width="42;" alt="花殇">
 </a>
-<a href="https://github.com/dousha0w0" title="dousha0w0">
-  <img src="https://avatars.githubusercontent.com/u/52566311?v=4" width="42;" alt="dousha0w0">
+<a href="https://github.com/dousha0w0" title="Xu Haoran">
+  <img src="https://avatars.githubusercontent.com/u/52566311?v=4" width="42;" alt="Xu Haoran">
 </a>
 <a href="https://github.com/Brid9e" title="Joe">
  <img src="https://avatars.githubusercontent.com/u/85558909?v=4" width="42;" alt="Joe">
@ -1058,9 +1061,6 @@
 <a href="https://github.com/joyfully-W" title="joyfully-W">
  <img src="https://avatars.githubusercontent.com/u/32212924?v=4" width="42;" alt="joyfully-W">
 </a>
-<a href="https://github.com/k23223" title="k23223">
-  <img src="https://avatars.githubusercontent.com/u/57606136?v=4" width="42;" alt="k23223">
-</a>
 <a href="https://github.com/k983551019" title="k983551019">
  <img src="https://avatars.githubusercontent.com/u/48147837?v=4" width="42;" alt="k983551019">
 </a>
@ -1359,7 +1359,7 @@
 <!--rehype:class=home-card home-links-->
 <p>如果你有资源，可以很方便<a href="https://github.com/jaywcjlove/reference/issues/102#issue-1451649637">部署 web 版</a>，这非常简单，只需要克隆 <a href="https://github.com/jaywcjlove/reference/tree/gh-pages">gh-pages</a> 分支代码到你的静态服务就可以了，还可以使用 <a href="https://hub.docker.com/r/wcjiang/reference">docker</a> 快捷部署 web 版。</p>

-</div></div><div class="h2wrap-body"></div></div></div></div><footer class="footer-wrap"><footer class="max-container">© 2022 Kenny Wang. Updated on 2023/09/05 08:17:47</footer></footer><script src="data.js?v=1.4.1" defer></script><script src="js/fuse.min.js?v=1.4.1" defer></script><script src="js/main.js?v=1.4.1" defer></script><div id="mysearch"><div class="mysearch-box"><div class="mysearch-input"><div><svg xmlns="http://www.w3.org/2000/svg" height="1em" width="1em" viewBox="0 0 18 18">
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