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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 `HandshakeError` enum in crate `actix_web`."><meta name="keywords" content="rust, rustlang, rust-lang, HandshakeError"><title>actix_web::ws::HandshakeError - 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 HandshakeError</p><div class="sidebar-elems"><div class="block items"><a class="sidebar-title" href="#variants">Variants</a><div class="sidebar-links"><a href="#variant.GetMethodRequired">GetMethodRequired</a><a href="#variant.NoWebsocketUpgrade">NoWebsocketUpgrade</a><a href="#variant.NoConnectionUpgrade">NoConnectionUpgrade</a><a href="#variant.NoVersionHeader">NoVersionHeader</a><a href="#variant.UnsupportedVersion">UnsupportedVersion</a><a href="#variant.BadWebsocketKey">BadWebsocketKey</a></div><a class="sidebar-title" href="#implementations">Trait Implementations</a><div class="sidebar-links"><a href="#impl-Fail">Fail</a><a href="#impl-Display">Display</a><a href="#impl-PartialEq">PartialEq</a><a href="#impl-Debug">Debug</a><a href="#impl-ResponseError">ResponseError</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: 'HandshakeError', 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=''>HandshakeError</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/mod.rs.html#112-131' title='goto source code'>[src]</a></span></h1><div class="docblock type-decl"><pre class='rust enum'>pub enum HandshakeError {
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GetMethodRequired,
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NoWebsocketUpgrade,
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NoConnectionUpgrade,
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NoVersionHeader,
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UnsupportedVersion,
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BadWebsocketKey,
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}</pre></div><div class='docblock'><p>Websocket handshake errors</p>
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</div><h2 id='variants' class='variants small-section-header'>
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Variants<a href='#variants' class='anchor'></a></h2>
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<span id="variant.GetMethodRequired" class="variant small-section-header"><a href="#variant.GetMethodRequired" class="anchor field"></a><span id='GetMethodRequired.v' class='invisible'><code>GetMethodRequired</code></span></span><div class='docblock'><p>Only get method is allowed</p>
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</div><span id="variant.NoWebsocketUpgrade" class="variant small-section-header"><a href="#variant.NoWebsocketUpgrade" class="anchor field"></a><span id='NoWebsocketUpgrade.v' class='invisible'><code>NoWebsocketUpgrade</code></span></span><div class='docblock'><p>Upgrade header if not set to websocket</p>
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</div><span id="variant.NoConnectionUpgrade" class="variant small-section-header"><a href="#variant.NoConnectionUpgrade" class="anchor field"></a><span id='NoConnectionUpgrade.v' class='invisible'><code>NoConnectionUpgrade</code></span></span><div class='docblock'><p>Connection header is not set to upgrade</p>
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</div><span id="variant.NoVersionHeader" class="variant small-section-header"><a href="#variant.NoVersionHeader" class="anchor field"></a><span id='NoVersionHeader.v' class='invisible'><code>NoVersionHeader</code></span></span><div class='docblock'><p>Websocket version header is not set</p>
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</div><span id="variant.UnsupportedVersion" class="variant small-section-header"><a href="#variant.UnsupportedVersion" class="anchor field"></a><span id='UnsupportedVersion.v' class='invisible'><code>UnsupportedVersion</code></span></span><div class='docblock'><p>Unsupported websocket version</p>
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</div><span id="variant.BadWebsocketKey" class="variant small-section-header"><a href="#variant.BadWebsocketKey" class="anchor field"></a><span id='BadWebsocketKey.v' class='invisible'><code>BadWebsocketKey</code></span></span><div class='docblock'><p>Websocket key is not set or wrong</p>
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</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-Fail' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl Fail for <a class="enum" href="../../actix_web/ws/enum.HandshakeError.html" title="enum actix_web::ws::HandshakeError">HandshakeError</a></code><a href='#impl-Fail' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/mod.rs.html#111' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.cause' class="method"><span id='cause.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.cause' class='fnname'>cause</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&Fail></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/mod.rs.html#111' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors. <a href="#method.cause">Read more</a></p>
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</div><h4 id='method.backtrace' class="method"><span id='backtrace.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.backtrace' class='fnname'>backtrace</a>(&self) -> <a class="enum" href="https://doc.rust-lang.org/nightly/core/option/enum.Option.html" title="enum core::option::Option">Option</a><&Backtrace></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/mod.rs.html#111' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a reference to the <code>Backtrace</code> carried by this failure, if it carries one. <a href="#method.backtrace">Read more</a></p>
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</div><h4 id='method.context' class="method"><span id='context.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.context' class='fnname'>context</a><D>(self, context: D) -> Context<D> <span class="where fmt-newline">where<br> D: <a class="trait" href="https://doc.rust-lang.org/nightly/core/fmt/trait.Display.html" title="trait core::fmt::Display">Display</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Send.html" title="trait core::marker::Send">Send</a> + <a class="trait" href="https://doc.rust-lang.org/nightly/core/marker/trait.Sync.html" title="trait core::marker::Sync">Sync</a> + 'static, </span></code></td><td></td></tr></tbody></table></span></h4><div class='docblock'><p>Provides context for this failure. <a href="#method.context">Read more</a></p>
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</div><h4 id='method.compat' class="method"><span id='compat.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.compat' class='fnname'>compat</a>(self) -> Compat<Self></code></td><td></td></tr></tbody></table></span></h4><div class='docblock'><p>Wraps this failure in a compatibility wrapper that implements <code>std::error::Error</code>. <a href="#method.compat">Read more</a></p>
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</div><h4 id='method.causes' class="method"><div class="important-traits"><div class='tooltip'>ⓘ<span class='tooltiptext'>Important traits for Causes<'f></span></div><div class="content hidden"><h3 class="important">Important traits for Causes<'f></h3><code class="content"><span class="where fmt-newline">impl<'f> <a class="trait" href="https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html" title="trait core::iter::iterator::Iterator">Iterator</a> for Causes<'f></span><span class="where fmt-newline"> type <a href='https://doc.rust-lang.org/nightly/core/iter/iterator/trait.Iterator.html#associatedtype.Item' class="type">Item</a> = &'f (Fail + 'static);</span></code></div></div><span id='causes.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.causes' class='fnname'>causes</a>(&self) -> Causes</code></td><td></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns a iterator over the causes of this <code>Fail</code> with itself as the first item and the <code>root_cause</code> as the final item. <a href="#method.causes">Read more</a></p>
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</div><h4 id='method.root_cause' class="method"><span id='root_cause.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='#method.root_cause' class='fnname'>root_cause</a>(&self) -> &(Fail + 'static)</code></td><td></td></tr></tbody></table></span></h4><div class='docblock'><p>Returns the "root cause" of this <code>Fail</code> - the last value in the cause chain which does not return an underlying <code>cause</code>. <a href="#method.root_cause">Read more</a></p>
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</div></div><h3 id='impl-Display' 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.Display.html" title="trait core::fmt::Display">Display</a> for <a class="enum" href="../../actix_web/ws/enum.HandshakeError.html" title="enum actix_web::ws::HandshakeError">HandshakeError</a></code><a href='#impl-Display' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/mod.rs.html#111' 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.Display.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/mod.rs.html#111' 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.Display.html#tymethod.fmt">Read more</a></p>
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</div></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.HandshakeError.html" title="enum actix_web::ws::HandshakeError">HandshakeError</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/mod.rs.html#111' 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.HandshakeError.html" title="enum actix_web::ws::HandshakeError">HandshakeError</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/mod.rs.html#111' 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>
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</div><h4 id='method.ne' class="method"><span id='ne.v' class='invisible'><table class='table-display'><tbody><tr><td><code><div class="docblock attributes">#[must_use]
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</div>fn <a href='https://doc.rust-lang.org/nightly/core/cmp/trait.PartialEq.html#method.ne' class='fnname'>ne</a>(&self, other: <a class="primitive" href="https://doc.rust-lang.org/nightly/std/primitive.reference.html">&</a>Rhs) -> <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><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/cmp.rs.html#126' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>This method tests for <code>!=</code>.</p>
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</div></div><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.HandshakeError.html" title="enum actix_web::ws::HandshakeError">HandshakeError</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/mod.rs.html#111' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.fmt-1' class="method"><span id='fmt.v-1' 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/mod.rs.html#111' 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>
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</div></div><h3 id='impl-ResponseError' class='impl'><span class='in-band'><table class='table-display'><tbody><tr><td><code>impl <a class="trait" href="../../actix_web/error/trait.ResponseError.html" title="trait actix_web::error::ResponseError">ResponseError</a> for <a class="enum" href="../../actix_web/ws/enum.HandshakeError.html" title="enum actix_web::ws::HandshakeError">HandshakeError</a></code><a href='#impl-ResponseError' class='anchor'></a></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/mod.rs.html#133-156' title='goto source code'>[src]</a></span></td></tr></tbody></table></h3><div class='impl-items'><h4 id='method.error_response' class="method"><span id='error_response.v' class='invisible'><table class='table-display'><tbody><tr><td><code>fn <a href='../../actix_web/error/trait.ResponseError.html#method.error_response' class='fnname'>error_response</a>(&self) -> <a class="struct" href="../../actix_web/struct.HttpResponse.html" title="struct actix_web::HttpResponse">HttpResponse</a></code></span></td><td><span class='out-of-band'><div class='ghost'></div><a class='srclink' href='../../src/actix_web/ws/mod.rs.html#134-155' title='goto source code'>[src]</a></td></tr></tbody></table></span></h4><div class='docblock'><p>Create response for error <a href="../../actix_web/error/trait.ResponseError.html#method.error_response">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="enum" href="../../actix_web/ws/enum.HandshakeError.html" title="enum actix_web::ws::HandshakeError">HandshakeError</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.HandshakeError.html" title="enum actix_web::ws::HandshakeError">HandshakeError</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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