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<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="API documentation for the Rust `Session` struct in crate `actix_web`."><meta name="keywords" content="rust, rustlang, rust-lang, Session"><title>actix_web::middleware::session::Session - Rust</title><link rel="stylesheet" type="text/css" href="../../../normalize.css"><link rel="stylesheet" type="text/css" href="../../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" type="text/css" href="../../../dark.css"><link rel="stylesheet" type="text/css" href="../../../light.css" id="themeStyle"><script src="../../../storage.js"></script></head><body class="rustdoc struct"><!--[if lte IE 8]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><div class="sidebar-menu">☰</div><p class='location'>Struct Session</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#methods">Methods</a><div class="sidebar-links"><a href="#method.get">get</a><a href="#method.set">set</a><a href="#method.remove">remove</a><a href="#method.clear">clear</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-FromRequest%3CS%3E">FromRequest<S></a></div><a class="sidebar-title" href="#synthetic-implementations">Auto Trait Implementations</a><div class="sidebar-links"><a href="#impl-Send">!Send</a><a href="#impl-Sync">!Sync</a></div></div><p class='location'><a href='../../index.html'>actix_web</a>::<wbr><a href='../index.html'>middleware</a>::<wbr><a href='index.html'>session</a></p><script>window.sidebarCurrent = {name: 'Session', ty: 'struct', relpath: ''};</script><script defer src="sidebar-items.js"></script></div></nav><div class="theme-picker"><button id="theme-picker" aria-label="Pick another theme!"><img src="../../../brush.svg" width="18" alt="Pick another theme!"></button><div id="theme-choices"></div></div><script src="../../../theme.js"></script><nav class="sub"><form class="search-form js-only"><div class="search-container"><input class="search-input" name="search" autocomplete="off" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><a id="settings-menu" href="../../../settings.html"><img src="../../../wheel.svg" width="18" alt="Change settings"></a></div></form></nav><section id="main" class="content"><h1 class='fqn'><span class='in-band'>Struct <a href='../../index.html'>actix_web</a>::<wbr><a href='../index.html'>middleware</a>::<wbr><a href='index.html'>session</a>::<wbr><a class="struct" href=''>Session</a></span><span class='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>−</span>]</a></span><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#141' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust struct'>pub struct Session(_);</pre></div><div class='docblock'><p>The high-level interface you use to modify session data.</p>
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<p>Session object could be obtained with
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<a href="trait.RequestSession.html#tymethod.session"><code>RequestSession::session</code></a>
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method. <code>RequestSession</code> trait is implemented for <code>HttpRequest</code>.</p>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">actix_web</span>::<span class="ident">middleware</span>::<span class="ident">session</span>::<span class="ident">RequestSession</span>;
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<span class="kw">use</span> <span class="ident">actix_web</span>::<span class="kw-2">*</span>;
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<span class="kw">fn</span> <span class="ident">index</span>(<span class="kw-2">mut</span> <span class="ident">req</span>: <span class="ident">HttpRequest</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span><span class="op">></span> {
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<span class="comment">// access session data</span>
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<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">count</span>) <span class="op">=</span> <span class="ident">req</span>.<span class="ident">session</span>().<span class="ident">get</span>::<span class="op"><</span><span class="ident">i32</span><span class="op">></span>(<span class="string">"counter"</span>)<span class="question-mark">?</span> {
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<span class="ident">req</span>.<span class="ident">session</span>().<span class="ident">set</span>(<span class="string">"counter"</span>, <span class="ident">count</span> <span class="op">+</span> <span class="number">1</span>)<span class="question-mark">?</span>;
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} <span class="kw">else</span> {
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<span class="ident">req</span>.<span class="ident">session</span>().<span class="ident">set</span>(<span class="string">"counter"</span>, <span class="number">1</span>)<span class="question-mark">?</span>;
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}
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<span class="prelude-val">Ok</span>(<span class="string">"Welcome!"</span>)
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}</pre>
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</div>
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<h2 id='methods' class='small-section-header'>
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Methods<a href='#methods' class='anchor'></a>
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</h2>
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<h3 id='impl' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="struct" href="../../../actix_web/middleware/session/struct.Session.html" title="struct actix_web::middleware::session::Session">Session</a></code><a href='#impl' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#148-192' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.get' class="method"><span id='get.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.get' class='fnname'>get</a><T: <a class="trait" href="https://docs.rs/serde/1.0.70/serde/de/trait.DeserializeOwned.html" title="trait serde::de::DeserializeOwned">DeserializeOwned</a>>(&self, key: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>) -> <a class="type" href="../../../actix_web/error/type.Result.html" title="type actix_web::error::Result">Result</a><<a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><T>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#150-161' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Get a <code>value</code> from the session.</p>
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</div><h4 id='method.set' class="method"><span id='set.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.set' class='fnname'>set</a><T: <a class="trait" href="https://docs.rs/serde/1.0.70/serde/ser/trait.Serialize.html" title="trait serde::ser::Serialize">Serialize</a>>(&self, key: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>, value: T) -> <a class="type" href="../../../actix_web/error/type.Result.html" title="type actix_web::error::Result">Result</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a>></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#164-175' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Set a <code>value</code> from the session.</p>
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</div><h4 id='method.remove' class="method"><span id='remove.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.remove' class='fnname'>remove</a>(&self, key: &<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.str.html">str</a>)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#178-183' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Remove value from the session.</p>
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</div><h4 id='method.clear' class="method"><span id='clear.v' class='invisible'><table class='table-display'><tbody><tr><td><code>pub fn <a href='#method.clear' class='fnname'>clear</a>(&self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#186-191' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Clear the session.</p>
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</div></div>
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<h2 id='implementations' class='small-section-header'>
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Trait Implementations<a href='#implementations' class='anchor'></a>
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</h2>
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<div id='implementations-list'><h3 id='impl-FromRequest%3CS%3E' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl<S> <a class="trait" href="../../../actix_web/trait.FromRequest.html" title="trait actix_web::FromRequest">FromRequest</a><S> for <a class="struct" href="../../../actix_web/middleware/session/struct.Session.html" title="struct actix_web::middleware::session::Session">Session</a></code><a href='#impl-FromRequest%3CS%3E' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#212-220' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='docblock'><p>Extractor implementation for Session type.</p>
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<pre class="rust rust-example-rendered">
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<span class="kw">use</span> <span class="ident">actix_web</span>::<span class="ident">middleware</span>::<span class="ident">session</span>::<span class="ident">Session</span>;
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<span class="kw">fn</span> <span class="ident">index</span>(<span class="ident">session</span>: <span class="ident">Session</span>) <span class="op">-></span> <span class="prelude-ty">Result</span><span class="op"><</span><span class="kw-2">&</span><span class="lifetime">'static</span> <span class="ident">str</span><span class="op">></span> {
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<span class="comment">// access session data</span>
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<span class="kw">if</span> <span class="kw">let</span> <span class="prelude-val">Some</span>(<span class="ident">count</span>) <span class="op">=</span> <span class="ident">session</span>.<span class="ident">get</span>::<span class="op"><</span><span class="ident">i32</span><span class="op">></span>(<span class="string">"counter"</span>)<span class="question-mark">?</span> {
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<span class="ident">session</span>.<span class="ident">set</span>(<span class="string">"counter"</span>, <span class="ident">count</span> <span class="op">+</span> <span class="number">1</span>)<span class="question-mark">?</span>;
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} <span class="kw">else</span> {
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<span class="ident">session</span>.<span class="ident">set</span>(<span class="string">"counter"</span>, <span class="number">1</span>)<span class="question-mark">?</span>;
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}
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<span class="prelude-val">Ok</span>(<span class="string">"Welcome!"</span>)
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}</pre>
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</div><div class='impl-items'><h4 id='associatedtype.Config' class="type"><span id='Config.t' class='invisible'><code>type <a href='../../../actix_web/trait.FromRequest.html#associatedtype.Config' class="type">Config</a> = <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.unit.html">()</a></code></span></h4>
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<div class='docblock'><p>Configuration for conversion process</p>
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</div><h4 id='associatedtype.Result' class="type"><span id='Result.t' class='invisible'><code>type <a href='../../../actix_web/trait.FromRequest.html#associatedtype.Result' class="type">Result</a> = <a class="struct" href="../../../actix_web/middleware/session/struct.Session.html" title="struct actix_web::middleware::session::Session">Session</a></code></span></h4>
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<div class='docblock'><p>Future that resolves to a Self</p>
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</div><h4 id='method.from_request' class="method"><span id='from_request.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../../actix_web/trait.FromRequest.html#tymethod.from_request' class='fnname'>from_request</a>(req: &<a class="struct" href="../../../actix_web/struct.HttpRequest.html" title="struct actix_web::HttpRequest">HttpRequest</a><S>, _: &Self::<a class="type" href="../../../actix_web/trait.FromRequest.html#associatedtype.Config" title="type actix_web::FromRequest::Config">Config</a>) -> Self::<a class="type" href="../../../actix_web/trait.FromRequest.html#associatedtype.Result" title="type actix_web::FromRequest::Result">Result</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/middleware/session.rs.html#217-219' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Convert request to a Self</p>
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</div><h4 id='method.extract' class="method"><span id='extract.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../../actix_web/trait.FromRequest.html#method.extract' class='fnname'>extract</a>(req: &<a class="struct" href="../../../actix_web/struct.HttpRequest.html" title="struct actix_web::HttpRequest">HttpRequest</a><S>) -> Self::<a class="type" href="../../../actix_web/trait.FromRequest.html#associatedtype.Result" title="type actix_web::FromRequest::Result">Result</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../../src/actix_web/handler.rs.html#55-57' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Convert request to a Self <a href="../../../actix_web/trait.FromRequest.html#method.extract">Read more</a></p>
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</div></div></div>
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<h2 id='synthetic-implementations' class='small-section-header'>
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Auto Trait Implementations<a href='#synthetic-implementations' class='anchor'></a>
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</h2>
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<div id='synthetic-implementations-list'>
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<h3 id='impl-Send' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> for <a class="struct" href="../../../actix_web/middleware/session/struct.Session.html" title="struct actix_web::middleware::session::Session">Session</a></code><a href='#impl-Send' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-Sync' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl !<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> for <a class="struct" href="../../../actix_web/middleware/session/struct.Session.html" title="struct actix_web::middleware::session::Session">Session</a></code><a href='#impl-Sync' class='anchor'></a></span></td><td><span class='out-of-band'></span></td></tr></tbody></table></h3><div class='impl-items'></div></div></section><section id="search" class="content hidden"></section><section class="footer"></section><aside id="help" class="hidden"><div><h1 class="hidden">Help</h1><div class="shortcuts"><h2>Keyboard Shortcuts</h2><dl><dt><kbd>?</kbd></dt><dd>Show this help dialog</dd><dt><kbd>S</kbd></dt><dd>Focus the search field</dd><dt><kbd>↑</kbd></dt><dd>Move up in search results</dd><dt><kbd>↓</kbd></dt><dd>Move down in search results</dd><dt><kbd>↹</kbd></dt><dd>Switch tab</dd><dt><kbd>⏎</kbd></dt><dd>Go to active search result</dd><dt><kbd>+</kbd></dt><dd>Expand all sections</dd><dt><kbd>-</kbd></dt><dd>Collapse all sections</dd></dl></div><div class="infos"><h2>Search Tricks</h2><p>Prefix searches with a type followed by a colon (e.g. <code>fn:</code>) to restrict the search to a given type.</p><p>Accepted types are: <code>fn</code>, <code>mod</code>, <code>struct</code>, <code>enum</code>, <code>trait</code>, <code>type</code>, <code>macro</code>, and <code>const</code>.</p><p>Search functions by type signature (e.g. <code>vec -> usize</code> or <code>* -> vec</code>)</p><p>Search multiple things at once by splitting your query with comma (e.g. <code>str,u8</code> or <code>String,struct:Vec,test</code>)</p></div></div></aside><script>window.rootPath = "../../../";window.currentCrate = "actix_web";</script><script src="../../../aliases.js"></script><script src="../../../main.js"></script><script defer src="../../../search-index.js"></script></body></html>
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