<!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 `CloseCode` enum in crate `actix_web`."><meta name="keywords" content="rust, rustlang, rust-lang, CloseCode"><title>actix_web::ws::CloseCode - 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 enum"><!--[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'>Enum CloseCode</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#variants">Variants</a><div class="sidebar-links"><a href="#variant.Normal">Normal</a><a href="#variant.Away">Away</a><a href="#variant.Protocol">Protocol</a><a href="#variant.Unsupported">Unsupported</a><a href="#variant.Abnormal">Abnormal</a><a href="#variant.Invalid">Invalid</a><a href="#variant.Policy">Policy</a><a href="#variant.Size">Size</a><a href="#variant.Extension">Extension</a><a href="#variant.Error">Error</a><a href="#variant.Restart">Restart</a><a href="#variant.Again">Again</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Debug">Debug</a><a href="#impl-Eq">Eq</a><a href="#impl-PartialEq">PartialEq</a><a href="#impl-Clone">Clone</a><a href="#impl-Copy">Copy</a><a href="#impl-Into%3Cu16%3E">Into<u16></a><a href="#impl-From%3Cu16%3E">From<u16></a><a href="#impl-From%3CCloseCode%3E">From<CloseCode></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'>ws</a></p><script>window.sidebarCurrent = {name: 'CloseCode', ty: 'enum', 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'>Enum <a href='../index.html'>actix_web</a>::<wbr><a href='index.html'>ws</a>::<wbr><a class="enum" href=''>CloseCode</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/ws/proto.rs.html#78-138' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust enum'>pub enum CloseCode { Normal, Away, Protocol, Unsupported, Abnormal, Invalid, Policy, Size, Extension, Error, Restart, Again, // some variants omitted }</pre></div><div class='docblock'><p>Status code used to indicate why an endpoint is closing the <code>WebSocket</code> connection.</p> </div><h2 id='variants' class='variants small-section-header'> Variants<a href='#variants' class='anchor'></a></h2> <span id="variant.Normal" class="variant small-section-header"><a href="#variant.Normal" class="anchor field"></a><span id='Normal.v' class='invisible'><code>Normal</code></span></span><div class='docblock'><p>Indicates a normal closure, meaning that the purpose for which the connection was established has been fulfilled.</p> </div><span id="variant.Away" class="variant small-section-header"><a href="#variant.Away" class="anchor field"></a><span id='Away.v' class='invisible'><code>Away</code></span></span><div class='docblock'><p>Indicates that an endpoint is "going away", such as a server going down or a browser having navigated away from a page.</p> </div><span id="variant.Protocol" class="variant small-section-header"><a href="#variant.Protocol" class="anchor field"></a><span id='Protocol.v' class='invisible'><code>Protocol</code></span></span><div class='docblock'><p>Indicates that an endpoint is terminating the connection due to a protocol error.</p> </div><span id="variant.Unsupported" class="variant small-section-header"><a href="#variant.Unsupported" class="anchor field"></a><span id='Unsupported.v' class='invisible'><code>Unsupported</code></span></span><div class='docblock'><p>Indicates that an endpoint is terminating the connection because it has received a type of data it cannot accept (e.g., an endpoint that understands only text data MAY send this if it receives a binary message).</p> </div><span id="variant.Abnormal" class="variant small-section-header"><a href="#variant.Abnormal" class="anchor field"></a><span id='Abnormal.v' class='invisible'><code>Abnormal</code></span></span><div class='docblock'><p>Indicates an abnormal closure. If the abnormal closure was due to an error, this close code will not be used. Instead, the <code>on_error</code> method of the handler will be called with the error. However, if the connection is simply dropped, without an error, this close code will be sent to the handler.</p> </div><span id="variant.Invalid" class="variant small-section-header"><a href="#variant.Invalid" class="anchor field"></a><span id='Invalid.v' class='invisible'><code>Invalid</code></span></span><div class='docblock'><p>Indicates that an endpoint is terminating the connection because it has received data within a message that was not consistent with the type of the message (e.g., non-UTF-8 [RFC3629] data within a text message).</p> </div><span id="variant.Policy" class="variant small-section-header"><a href="#variant.Policy" class="anchor field"></a><span id='Policy.v' class='invisible'><code>Policy</code></span></span><div class='docblock'><p>Indicates that an endpoint is terminating the connection because it has received a message that violates its policy. This is a generic status code that can be returned when there is no other more suitable status code (e.g., Unsupported or Size) or if there is a need to hide specific details about the policy.</p> </div><span id="variant.Size" class="variant small-section-header"><a href="#variant.Size" class="anchor field"></a><span id='Size.v' class='invisible'><code>Size</code></span></span><div class='docblock'><p>Indicates that an endpoint is terminating the connection because it has received a message that is too big for it to process.</p> </div><span id="variant.Extension" class="variant small-section-header"><a href="#variant.Extension" class="anchor field"></a><span id='Extension.v' class='invisible'><code>Extension</code></span></span><div class='docblock'><p>Indicates that an endpoint (client) is terminating the connection because it has expected the server to negotiate one or more extension, but the server didn't return them in the response message of the WebSocket handshake. The list of extensions that are needed should be given as the reason for closing. Note that this status code is not used by the server, because it can fail the WebSocket handshake instead.</p> </div><span id="variant.Error" class="variant small-section-header"><a href="#variant.Error" class="anchor field"></a><span id='Error.v' class='invisible'><code>Error</code></span></span><div class='docblock'><p>Indicates that a server is terminating the connection because it encountered an unexpected condition that prevented it from fulfilling the request.</p> </div><span id="variant.Restart" class="variant small-section-header"><a href="#variant.Restart" class="anchor field"></a><span id='Restart.v' class='invisible'><code>Restart</code></span></span><div class='docblock'><p>Indicates that the server is restarting. A client may choose to reconnect, and if it does, it should use a randomized delay of 5-30 seconds between attempts.</p> </div><span id="variant.Again" class="variant small-section-header"><a href="#variant.Again" class="anchor field"></a><span id='Again.v' class='invisible'><code>Again</code></span></span><div class='docblock'><p>Indicates that the server is overloaded and the client should either connect to a different IP (when multiple targets exist), or reconnect to the same IP when a user has performed an action.</p> </div> <h2 id='implementations' class='small-section-header'> Trait Implementations<a href='#implementations' class='anchor'></a> </h2> <div id='implementations-list'><h3 id='impl-Debug' 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/fmt/trait.Debug.html" title="trait core::fmt::Debug">Debug</a> for <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code><a href='#impl-Debug' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.fmt' class="method"><span id='fmt.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt' class='fnname'>fmt</a>(&self, f: &mut <a class="struct" href="https://doc.rust-lang.org/nightly/core/fmt/struct.Formatter.html" title="struct core::fmt::Formatter">Formatter</a>) -> <a class="type" href="https://doc.rust-lang.org/nightly/core/fmt/type.Result.html" title="type core::fmt::Result">Result</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Formats the value using the given formatter. <a href="https://doc.rust-lang.org/nightly/core/fmt/trait.Debug.html#tymethod.fmt">Read more</a></p> </div></div><h3 id='impl-Eq' 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/cmp/trait.Eq.html" title="trait core::cmp::Eq">Eq</a> for <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code><a href='#impl-Eq' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-PartialEq' 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/cmp/trait.PartialEq.html" title="trait core::cmp::PartialEq">PartialEq</a> for <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code><a href='#impl-PartialEq' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.eq' class="method"><span id='eq.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq' class='fnname'>eq</a>(&self, other: &<a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>This method tests for <code>self</code> and <code>other</code> values to be equal, and is used by <code>==</code>. <a href="https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#tymethod.eq">Read more</a></p> </div><h4 id='method.ne' class="method"><span id='ne.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, other: &<a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a>) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.bool.html">bool</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>This method tests for <code>!=</code>.</p> </div></div><h3 id='impl-Clone' 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/clone/trait.Clone.html" title="trait core::clone::Clone">Clone</a> for <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code><a href='#impl-Clone' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.clone' class="method"><span id='clone.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone' class='fnname'>clone</a>(&self) -> <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a copy of the value. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#tymethod.clone">Read more</a></p> </div><h4 id='method.clone_from' class="method"><span id='clone_from.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from' class='fnname'>clone_from</a>(&mut self, source: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Self)</code></span></td><td><span class='out-of-band'><div class='ghost'></div><div class='since' title='Stable since Rust version 1.0.0'>1.0.0</div><a class='srclink' href='https://doc.rust-lang.org/nightly/src/core/clone.rs.html#130-132' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Performs copy-assignment from <code>source</code>. <a href="https://doc.rust-lang.org/nightly/core/clone/trait.Clone.html#method.clone_from">Read more</a></p> </div></div><h3 id='impl-Copy' 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.Copy.html" title="trait core::marker::Copy">Copy</a> for <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code><a href='#impl-Copy' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#77' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'></div><h3 id='impl-Into%3Cu16%3E' 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/convert/trait.Into.html" title="trait core::convert::Into">Into</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>> for <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code><a href='#impl-Into%3Cu16%3E' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#140-159' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.into' class="method"><span id='into.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.Into.html#tymethod.into' class='fnname'>into</a>(self) -> <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#141-158' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Performs the conversion.</p> </div></div><h3 id='impl-From%3Cu16%3E' 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/convert/trait.From.html" title="trait core::convert::From">From</a><<a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>> for <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code><a href='#impl-From%3Cu16%3E' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#161-180' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.from' class="method"><span id='from.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(code: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.u16.html">u16</a>) -> <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#162-179' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Performs the conversion.</p> </div></div><h3 id='impl-From%3CCloseCode%3E' 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/convert/trait.From.html" title="trait core::convert::From">From</a><<a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a>> for <a class="struct" href="../../actix_web/ws/struct.CloseReason.html" title="struct actix_web::ws::CloseReason">CloseReason</a></code><a href='#impl-From%3CCloseCode%3E' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#191-198' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.from-1' class="method"><span id='from.v-1' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='https://doc.rust-lang.org/nightly/core/convert/trait.From.html#tymethod.from' class='fnname'>from</a>(code: <a class="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</a>) -> Self</code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/proto.rs.html#192-197' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Performs the conversion.</p> </div></div></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'> <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="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</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="enum" href="../../actix_web/ws/enum.CloseCode.html" title="enum actix_web::ws::CloseCode">CloseCode</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" 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