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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="A fluent, customized `SessionMiddleware` builder."><title>SessionMiddlewareBuilder in actix_session::config - Rust</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Regular-46f98efaafac5295.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Regular-018c141bf0843ffd.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/FiraSans-Medium-8f9a781e4970d388.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Regular-562dcc5011b6de7d.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceSerif4-Bold-a2c9cd1067f8b328.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../static.files/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-c4dbdcde0fbd8430.css" id="mainThemeStyle"><div id="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="actix_session" data-themes="" data-resource-suffix="" data-rustdoc-version="1.70.0-nightly (a266f1199 2023-03-22)" data-search-js="search-a6dd7f063a44c279.js" data-settings-js="settings-f0c5c39777a9a2f6.js" data-settings-css="settings-0bcba95ff279c1db.css" data-theme-light-css="light-db279b6232be9c13.css" data-theme-dark-css="dark-cf923f49f397b216.css" data-theme-ayu-css="ayu-be46fdc453a55015.css" ></div><script src="../../static.files/storage-9184409068f70b79.js"></script><script defer src="sidebar-items.js"></script><script defer src="../../static.files/main-f5a2577c5297a973.js"></script><noscript><link rel="stylesheet" media="(prefers-color-scheme:light)" href="../../static.files/light-db279b6232be9c13.css"><link rel="stylesheet" media="(prefers-color-scheme:dark)" href="../../static.files/dark-cf923f49f397b216.css"><link rel="stylesheet" href="../../static.files/noscript-13285aec31fa243e.css"></noscript><link rel="icon" href="https://actix.rs/favicon.ico"></head><body class="rustdoc struct"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="mobile-topbar"><button class="sidebar-menu-toggle">&#9776;</button><a class="logo-container" href="../../actix_session/index.html"><img src="https://actix.rs/img/logo.png" alt="logo"></a><h2></h2></nav><nav class="sidebar"><a class="logo-container" href="../../actix_session/index.html"><img src="https://actix.rs/img/logo.png" alt="logo"></a><h2 class="location"><a href="#">SessionMiddlewareBuilder</a></h2><div class="sidebar-elems"><section><h3><a href="#implementations">Methods</a></h3><ul class="block"><li><a href="#method.build">build</a></li><li><a href="#method.cookie_content_security">cookie_content_security</a></li><li><a href="#method.cookie_domain">cookie_domain</a></li><li><a href="#method.cookie_http_only">cookie_http_only</a></li><li><a href="#method.cookie_name">cookie_name</a></li><li><a href="#method.cookie_path">cookie_path</a></li><li><a href="#method.cookie_same_site">cookie_same_site</a></li><li><a href="#method.cookie_secure">cookie_secure</a></li><li><a href="#method.session_lifecycle">session_lifecycle</a></li></ul><h3><a href="#synthetic-implementations">Auto Trait Implementations</a></h3><ul class="block"><li><a href="#impl-RefUnwindSafe-for-SessionMiddlewareBuilder%3CStore%3E">RefUnwindSafe</a></li><li><a href="#impl-Send-for-SessionMiddlewareBuilder%3CStore%3E">Send</a></li><li><a href="#impl-Sync-for-SessionMiddlewareBuilder%3CStore%3E">Sync</a></li><li><a href="#impl-Unpin-for-SessionMiddlewareBuilder%3CStore%3E">Unpin</a></li><li><a href="#impl-UnwindSafe-for-SessionMiddlewareBuilder%3
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</div></details><h2 id="implementations" class="small-section-header">Implementations<a href="#implementations" class="anchor">§</a></h2><div id="implementations-list"><details class="toggle implementors-toggle" open><summary><section id="impl-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#219-351">source</a><a href="#impl-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;Store: <a class="trait" href="../storage/trait.SessionStore.html" title="trait actix_session::storage::SessionStore">SessionStore</a>&gt; <a class="struct" href="struct.SessionMiddlewareBuilder.html" title="struct actix_session::config::SessionMiddlewareBuilder">SessionMiddlewareBuilder</a>&lt;Store&gt;</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.cookie_name" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#230-233">source</a><h4 class="code-header">pub fn <a href="#method.cookie_name" class="fn">cookie_name</a>(self, name: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>) -&gt; Self</h4></section></summary><div class="docblock"><p>Set the name of the cookie used to store the session ID.</p>
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<p>Defaults to <code>id</code>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.cookie_secure" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#241-244">source</a><h4 class="code-header">pub fn <a href="#method.cookie_secure" class="fn">cookie_secure</a>(self, secure: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; Self</h4></section></summary><div class="docblock"><p>Set the <code>Secure</code> attribute for the cookie used to store the session ID.</p>
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<p>If the cookie is set as secure, it will only be transmitted when the connection is secure
(using <code>https</code>).</p>
<p>Default is <code>true</code>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.session_lifecycle" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#266-287">source</a><h4 class="code-header">pub fn <a href="#method.session_lifecycle" class="fn">session_lifecycle</a>&lt;S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;<a class="enum" href="enum.SessionLifecycle.html" title="enum actix_session::config::SessionLifecycle">SessionLifecycle</a>&gt;&gt;(
self,
session_lifecycle: S
) -&gt; Self</h4></section></summary><div class="docblock"><p>Determines what type of session cookie should be used and how its lifecycle should be managed.
Check out <a href="enum.SessionLifecycle.html" title="enum actix_session::config::SessionLifecycle"><code>SessionLifecycle</code></a>’s documentation for more details on the available options.</p>
<p>Default is <a href="enum.SessionLifecycle.html#variant.BrowserSession" title="variant actix_session::config::SessionLifecycle::BrowserSession"><code>SessionLifecycle::BrowserSession</code></a>.</p>
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<h5 id="examples"><a href="#examples">Examples</a></h5>
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<div class="example-wrap"><pre class="rust rust-example-rendered"><code><span class="kw">use </span>actix_web::cookie::{Key, time::Duration};
<span class="kw">use </span>actix_session::{SessionMiddleware, config::PersistentSession};
<span class="kw">use </span>actix_session::storage::CookieSessionStore;
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<span class="kw">const </span>SECS_IN_WEEK: i64 = <span class="number">60 </span>* <span class="number">60 </span>* <span class="number">24 </span>* <span class="number">7</span>;
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<span class="comment">// creates a session middleware with a time-to-live (expiry) of 1 week
</span>SessionMiddleware::builder(CookieSessionStore::default(), Key::from(<span class="kw-2">&amp;</span>[<span class="number">0</span>; <span class="number">64</span>]))
.session_lifecycle(
PersistentSession::default().session_ttl(Duration::seconds(SECS_IN_WEEK))
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)
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.build();</code></pre></div>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.cookie_same_site" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#292-295">source</a><h4 class="code-header">pub fn <a href="#method.cookie_same_site" class="fn">cookie_same_site</a>(self, same_site: <a class="enum" href="https://docs.rs/cookie/0.16/cookie/draft/enum.SameSite.html" title="enum cookie::draft::SameSite">SameSite</a>) -&gt; Self</h4></section></summary><div class="docblock"><p>Set the <code>SameSite</code> attribute for the cookie used to store the session ID.</p>
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<p>By default, the attribute is set to <code>Lax</code>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.cookie_path" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#300-303">source</a><h4 class="code-header">pub fn <a href="#method.cookie_path" class="fn">cookie_path</a>(self, path: <a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>) -&gt; Self</h4></section></summary><div class="docblock"><p>Set the <code>Path</code> attribute for the cookie used to store the session ID.</p>
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<p>By default, the attribute is set to <code>/</code>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.cookie_domain" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#311-314">source</a><h4 class="code-header">pub fn <a href="#method.cookie_domain" class="fn">cookie_domain</a>(self, domain: <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a>&lt;<a class="struct" href="https://doc.rust-lang.org/nightly/alloc/string/struct.String.html" title="struct alloc::string::String">String</a>&gt;) -&gt; Self</h4></section></summary><div class="docblock"><p>Set the <code>Domain</code> attribute for the cookie used to store the session ID.</p>
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<p>Use <code>None</code> to leave the attribute unspecified. If unspecified, the attribute defaults
to the same host that set the cookie, excluding subdomains.</p>
<p>By default, the attribute is left unspecified.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.cookie_content_security" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#330-333">source</a><h4 class="code-header">pub fn <a href="#method.cookie_content_security" class="fn">cookie_content_security</a>(
self,
content_security: <a class="enum" href="enum.CookieContentSecurity.html" title="enum actix_session::config::CookieContentSecurity">CookieContentSecurity</a>
) -&gt; Self</h4></section></summary><div class="docblock"><p>Choose how the session cookie content should be secured.</p>
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<ul>
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<li><a href="enum.CookieContentSecurity.html#variant.Private" title="variant actix_session::config::CookieContentSecurity::Private"><code>CookieContentSecurity::Private</code></a> selects encrypted cookie content.</li>
<li><a href="enum.CookieContentSecurity.html#variant.Signed" title="variant actix_session::config::CookieContentSecurity::Signed"><code>CookieContentSecurity::Signed</code></a> selects signed cookie content.</li>
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</ul>
<h5 id="default"><a href="#default">Default</a></h5>
<p>By default, the cookie content is encrypted. Encrypted was chosen instead of signed as
default because it reduces the chances of sensitive information being exposed in the session
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key by accident, regardless of <a href="../storage/trait.SessionStore.html" title="trait actix_session::storage::SessionStore"><code>SessionStore</code></a> implementation you chose to use.</p>
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<p>For example, if you are using cookie-based storage, you definitely want the cookie content
to be encrypted—the whole session state is embedded in the cookie! If you are using
Redis-based storage, signed is more than enough - the cookie content is just a unique
tamper-proof session key.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.cookie_http_only" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#341-344">source</a><h4 class="code-header">pub fn <a href="#method.cookie_http_only" class="fn">cookie_http_only</a>(self, http_only: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a>) -&gt; Self</h4></section></summary><div class="docblock"><p>Set the <code>HttpOnly</code> attribute for the cookie used to store the session ID.</p>
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<p>If the cookie is set as <code>HttpOnly</code>, it will not be visible to any JavaScript snippets
running in the browser.</p>
<p>Default is <code>true</code>.</p>
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</div></details><details class="toggle method-toggle" open><summary><section id="method.build" class="method"><a class="srclink rightside" href="../../src/actix_session/config.rs.html#348-350">source</a><h4 class="code-header">pub fn <a href="#method.build" class="fn">build</a>(self) -&gt; <a class="struct" href="../struct.SessionMiddleware.html" title="struct actix_session::SessionMiddleware">SessionMiddleware</a>&lt;Store&gt;</h4></section></summary><div class="docblock"><p>Finalise the builder and return a <a href="../struct.SessionMiddleware.html" title="struct actix_session::SessionMiddleware"><code>SessionMiddleware</code></a> instance.</p>
</div></details></div></details></div><h2 id="synthetic-implementations" class="small-section-header">Auto Trait Implementations<a href="#synthetic-implementations" class="anchor">§</a></h2><div id="synthetic-implementations-list"><section id="impl-RefUnwindSafe-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a href="#impl-RefUnwindSafe-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;Store&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a> for <a class="struct" href="struct.SessionMiddlewareBuilder.html" title="struct actix_session::config::SessionMiddlewareBuilder">SessionMiddlewareBuilder</a>&lt;Store&gt;<span class="where fmt-newline">where
Store: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.RefUnwindSafe.html" title="trait core::panic::unwind_safe::RefUnwindSafe">RefUnwindSafe</a>,</span></h3></section><section id="impl-Send-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a href="#impl-Send-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;Store&gt; <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="struct.SessionMiddlewareBuilder.html" title="struct actix_session::config::SessionMiddlewareBuilder">SessionMiddlewareBuilder</a>&lt;Store&gt;<span class="where fmt-newline">where
Store: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a>,</span></h3></section><section id="impl-Sync-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a href="#impl-Sync-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;Store&gt; <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="struct.SessionMiddlewareBuilder.html" title="struct actix_session::config::SessionMiddlewareBuilder">SessionMiddlewareBuilder</a>&lt;Store&gt;<span class="where fmt-newline">where
Store: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a>,</span></h3></section><section id="impl-Unpin-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a href="#impl-Unpin-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;Store&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a> for <a class="struct" href="struct.SessionMiddlewareBuilder.html" title="struct actix_session::config::SessionMiddlewareBuilder">SessionMiddlewareBuilder</a>&lt;Store&gt;<span class="where fmt-newline">where
Store: <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Unpin.html" title="trait core::marker::Unpin">Unpin</a>,</span></h3></section><section id="impl-UnwindSafe-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a href="#impl-UnwindSafe-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;Store&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a> for <a class="struct" href="struct.SessionMiddlewareBuilder.html" title="struct actix_session::config::SessionMiddlewareBuilder">SessionMiddlewareBuilder</a>&lt;Store&gt;<span class="where fmt-newline">where
Store: <a class="trait" href="https://doc.rust-lang.org/nightly/core/panic/unwind_safe/trait.UnwindSafe.html" title="trait core::panic::unwind_safe::UnwindSafe">UnwindSafe</a>,</span></h3></section></div><h2 id="blanket-implementations" class="small-section-header">Blanket Implementations<a href="#blanket-implementations" class="anchor">§</a></h2><div id="blanket-implementations-list"><details class="toggle implementors-toggle"><summary><section id="impl-Any-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#200">source</a><a href="#impl-Any-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html" title="trait core::any::Any">Any</a> for T<span class="where fmt-newline">where
T: 'static + ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.type_id" class="method trait-impl"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/any.rs.html#201">source</a><a href="#method.type_id" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id" class="fn">type_id</a>(&amp;self) -&gt; <a class="struct" href="https://doc.rust-lang.org/nightly/core/any/struct.TypeId.html" title="struct core::any::TypeId">TypeId</a></h4></section></summary><div class='docblock'>Gets the <code>TypeId</code> of <code>self</code>. <a href="https://doc.rust-lang.org/nightly/core/any/trait.Any.html#tymethod.type_id">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Borrow%3CT%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#211">source</a><a href="#impl-Borrow%3CT%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html" title="trait core::borrow::Borrow">Borrow</a>&lt;T&gt; for T<span class="where fmt-newline">where
T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow" class="method trait-impl"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#213">source</a></span><a href="#method.borrow" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow" class="fn">borrow</a>(&amp;self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;T</a></h4></section></summary><div class='docblock'>Immutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.Borrow.html#tymethod.borrow">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-BorrowMut%3CT%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#220">source</a><a href="#impl-BorrowMut%3CT%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html" title="trait core::borrow::BorrowMut">BorrowMut</a>&lt;T&gt; for T<span class="where fmt-newline">where
T: ?<a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sized.html" title="trait core::marker::Sized">Sized</a>,</span></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.borrow_mut" class="method trait-impl"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/91522" title="Tracking issue for const_borrow">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/borrow.rs.html#221">source</a></span><a href="#method.borrow_mut" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut" class="fn">borrow_mut</a>(&amp;mut self) -&gt; <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&amp;mut T</a></h4></section></summary><div class='docblock'>Mutably borrows from an owned value. <a href="https://doc.rust-lang.org/nightly/core/borrow/trait.BorrowMut.html#tymethod.borrow_mut">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-From%3CT%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#733">source</a><a href="#impl-From%3CT%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.from" class="method trait-impl"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#736">source</a></span><a href="#method.from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from" class="fn">from</a>(t: T) -&gt; T</h4></section></summary><div class="docblock"><p>Returns the argument unchanged.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Instrument-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#276">source</a><a href="#impl-Instrument-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html" title="trait tracing::instrument::Instrument">Instrument</a> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.instrument" class="method trait-impl"><a class="srclink rightside" href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#82">source</a><a href="#method.instrument" class="anchor">§</a><h4 class="code-header">fn <a href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.instrument" class="fn">instrument</a>(self, span: <a class="struct" href="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html" title="struct tracing::span::Span">Span</a>) -&gt; <a class="struct" href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a>&lt;Self&gt;</h4></section></summary><div class='docblock'>Instruments this type with the provided <a href="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html" title="struct tracing::span::Span"><code>Span</code></a>, returning an
<code>Instrumented</code> wrapper. <a href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.instrument">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.in_current_span" class="method trait-impl"><a class="srclink rightside" href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#121">source</a><a href="#method.in_current_span" class="anchor">§</a><h4 class="code-header">fn <a href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.in_current_span" class="fn">in_current_span</a>(self) -&gt; <a class="struct" href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.Instrumented.html" title="struct tracing::instrument::Instrumented">Instrumented</a>&lt;Self&gt;</h4></section></summary><div class='docblock'>Instruments this type with the <a href="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html#method.current" title="associated function tracing::span::Span::current">current</a> <a href="https://docs.rs/tracing/0.1.37/tracing/span/struct.Span.html" title="struct tracing::span::Span"><code>Span</code></a>, returning an
<code>Instrumented</code> wrapper. <a href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.Instrument.html#method.in_current_span">Read more</a></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Into%3CU%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#717">source</a><a href="#impl-Into%3CU%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;U&gt; for T<span class="where fmt-newline">where
U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.into" class="method trait-impl"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#725">source</a></span><a href="#method.into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into" class="fn">into</a>(self) -&gt; U</h4></section></summary><div class="docblock"><p>Calls <code>U::from(self)</code>.</p>
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<p>That is, this conversion is whatever the implementation of
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<code><a href="https://doc.rust-lang.org/nightly/core/convert/trait.From.html" title="trait core::convert::From">From</a>&lt;T&gt; for U</code> chooses to do.</p>
</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-Same%3CT%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://docs.rs/typenum/1.16.0/src/typenum/type_operators.rs.html#34">source</a><a href="#impl-Same%3CT%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://docs.rs/typenum/1.16.0/typenum/type_operators/trait.Same.html" title="trait typenum::type_operators::Same">Same</a>&lt;T&gt; for T</h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Output" class="associatedtype trait-impl"><a href="#associatedtype.Output" class="anchor">§</a><h4 class="code-header">type <a href="https://docs.rs/typenum/1.16.0/typenum/type_operators/trait.Same.html#associatedtype.Output" class="associatedtype">Output</a> = T</h4></section></summary><div class='docblock'>Should always be <code>Self</code></div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryFrom%3CU%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#775">source</a><a href="#impl-TryFrom%3CU%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt; for T<span class="where fmt-newline">where
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U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error-1" class="associatedtype trait-impl"><a href="#associatedtype.Error-1" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" class="associatedtype">Error</a> = <a class="enum" href="https://doc.rust-lang.org/nightly/core/convert/enum.Infallible.html" title="enum core::convert::Infallible">Infallible</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_from" class="method trait-impl"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#781">source</a></span><a href="#method.try_from" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#tymethod.try_from" class="fn">try_from</a>(value: U) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;T, &lt;T as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;U&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-TryInto%3CU%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#760">source</a><a href="#impl-TryInto%3CU%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T, U&gt; <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html" title="trait core::convert::TryInto">TryInto</a>&lt;U&gt; for T<span class="where fmt-newline">where
U: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><details class="toggle" open><summary><section id="associatedtype.Error" class="associatedtype trait-impl"><a href="#associatedtype.Error" class="anchor">§</a><h4 class="code-header">type <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#associatedtype.Error" class="associatedtype">Error</a> = &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a></h4></section></summary><div class='docblock'>The type returned in the event of a conversion error.</div></details><details class="toggle method-toggle" open><summary><section id="method.try_into" class="method trait-impl"><span class="rightside"><span class="since" title="const unstable">const: <a href="https://github.com/rust-lang/rust/issues/88674" title="Tracking issue for const_convert">unstable</a></span> · <a class="srclink" href="https://doc.rust-lang.org/nightly/src/core/convert/mod.rs.html#766">source</a></span><a href="#method.try_into" class="anchor">§</a><h4 class="code-header">fn <a href="https://doc.rust-lang.org/nightly/core/convert/trait.TryInto.html#tymethod.try_into" class="fn">try_into</a>(self) -&gt; <a class="enum" href="https://doc.rust-lang.org/nightly/core/result/enum.Result.html" title="enum core::result::Result">Result</a>&lt;U, &lt;U as <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html" title="trait core::convert::TryFrom">TryFrom</a>&lt;T&gt;&gt;::<a class="associatedtype" href="https://doc.rust-lang.org/nightly/core/convert/trait.TryFrom.html#associatedtype.Error" title="type core::convert::TryFrom::Error">Error</a>&gt;</h4></section></summary><div class='docblock'>Performs the conversion.</div></details></div></details><details class="toggle implementors-toggle"><summary><section id="impl-VZip%3CV%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a href="#impl-VZip%3CV%3E-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;V, T&gt; VZip&lt;V&gt; for T<span class="where fmt-newline">where
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V: MultiLane&lt;T&gt;,</span></h3></section></summary><div class="impl-items"><section id="method.vzip" class="method trait-impl"><a href="#method.vzip" class="anchor">§</a><h4 class="code-header">fn <a class="fn">vzip</a>(self) -&gt; V</h4></section></div></details><details class="toggle implementors-toggle"><summary><section id="impl-WithSubscriber-for-SessionMiddlewareBuilder%3CStore%3E" class="impl"><a class="srclink rightside" href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#334">source</a><a href="#impl-WithSubscriber-for-SessionMiddlewareBuilder%3CStore%3E" class="anchor">§</a><h3 class="code-header">impl&lt;T&gt; <a class="trait" href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html" title="trait tracing::instrument::WithSubscriber">WithSubscriber</a> for T</h3></section></summary><div class="impl-items"><details class="toggle method-toggle" open><summary><section id="method.with_subscriber" class="method trait-impl"><a class="srclink rightside" href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#169-171">source</a><a href="#method.with_subscriber" class="anchor">§</a><h4 class="code-header">fn <a href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html#method.with_subscriber" class="fn">with_subscriber</a>&lt;S&gt;(self, subscriber: S) -&gt; <a class="struct" href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a>&lt;Self&gt;<span class="where fmt-newline">where
S: <a class="trait" href="https://doc.rust-lang.org/nightly/core/convert/trait.Into.html" title="trait core::convert::Into">Into</a>&lt;<a class="struct" href="https://docs.rs/tracing-core/0.1.22/tracing_core/dispatcher/struct.Dispatch.html" title="struct tracing_core::dispatcher::Dispatch">Dispatch</a>&gt;,</span></h4></section></summary><div class='docblock'>Attaches the provided <a href="https://docs.rs/tracing-core/0.1.22/tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> to this type, returning a
<a href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html#method.with_subscriber">Read more</a></div></details><details class="toggle method-toggle" open><summary><section id="method.with_current_subscriber" class="method trait-impl"><a class="srclink rightside" href="https://docs.rs/tracing/0.1.37/src/tracing/instrument.rs.html#221">source</a><a href="#method.with_current_subscriber" class="anchor">§</a><h4 class="code-header">fn <a href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber" class="fn">with_current_subscriber</a>(self) -&gt; <a class="struct" href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch">WithDispatch</a>&lt;Self&gt;</h4></section></summary><div class='docblock'>Attaches the current <a href="https://docs.rs/tracing/0.1.37/tracing/dispatcher/index.html#setting-the-default-subscriber" title="mod tracing::dispatcher">default</a> <a href="https://docs.rs/tracing-core/0.1.22/tracing_core/subscriber/trait.Subscriber.html" title="trait tracing_core::subscriber::Subscriber"><code>Subscriber</code></a> to this type, returning a
<a href="https://docs.rs/tracing/0.1.37/tracing/instrument/struct.WithDispatch.html" title="struct tracing::instrument::WithDispatch"><code>WithDispatch</code></a> wrapper. <a href="https://docs.rs/tracing/0.1.37/tracing/instrument/trait.WithSubscriber.html#method.with_current_subscriber">Read more</a></div></details></div></details></div></section></div></main></body></html>
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