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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 `server` mod in crate `actix_web`."><meta name="keywords" content="rust, rustlang, rust-lang, server"><title>actix_web::server - 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 mod"><!--[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">&#9776;</div><p class='location'>Module server</p><div class="sidebar-elems"><div class="block items"><ul><li><a href="#structs">Structs</a></li><li><a href="#enums">Enums</a></li><li><a href="#traits">Traits</a></li><li><a href="#functions">Functions</a></li></ul></div><p class='location'><a href='../index.html'>actix_web</a></p><script>window.sidebarCurrent = {name: 'server', ty: 'mod', 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='out-of-band'><span id='render-detail'><a id="toggle-all-docs" href="javascript:void(0)" title="collapse all docs">[<span class='inner'>&#x2212;</span>]</a></span><a class='srclink' href='../../src/actix_web/server/mod.rs.html#1-367' title='goto source code'>[src]</a></span><span class='in-band'>Module <a href='../index.html'>actix_web</a>::<wbr><a class="mod" href=''>server</a></span></h1><div class='docblock'><p>Http server module</p>
<p>The module contains everything necessary to setup
HTTP server.</p>
<p>In order to start HTTP server, first you need to create and configure it
using factory that can be supplied to <a href="fn.new.html">new</a>.</p>
<h2 id="factory" class="section-header"><a href="#factory">Factory</a></h2>
<p>Factory is a function that returns Application, describing how
to serve incoming HTTP requests.</p>
<p>As the server uses worker pool, the factory function is restricted to trait bounds
<code>Send + Clone + 'static</code> so that each worker would be able to accept Application
without a need for synchronization.</p>
<p>If you wish to share part of state among all workers you should
wrap it in <code>Arc</code> and potentially synchronization primitive like
<a href="https://doc.rust-lang.org/std/sync/struct.RwLock.html">RwLock</a>
If the wrapped type is not thread safe.</p>
<p>Note though that locking is not advisable for asynchronous programming
and you should minimize all locks in your request handlers</p>
<h2 id="https-support" class="section-header"><a href="#https-support">HTTPS Support</a></h2>
<p>Actix-web provides support for major crates that provides TLS.
Each TLS implementation is provided with <a href="trait.AcceptorService.html">AcceptorService</a>
that describes how HTTP Server accepts connections.</p>
<p>For <code>bind</code> and <code>listen</code> there are corresponding <code>bind_ssl|tls|rustls</code> and <code>listen_ssl|tls|rustls</code> that accepts
these services.</p>
<p><strong>NOTE:</strong> <code>native-tls</code> doesn't support <code>HTTP2</code> yet</p>
<h2 id="signal-handling-and-shutdown" class="section-header"><a href="#signal-handling-and-shutdown">Signal handling and shutdown</a></h2>
<p>By default HTTP Server listens for system signals
and, gracefully shuts down at most after 30 seconds.</p>
<p>Both signal handling and shutdown timeout can be controlled
using corresponding methods.</p>
<p>If worker, for some reason, unable to shut down within timeout
it is forcibly dropped.</p>
<h2 id="example" class="section-header"><a href="#example">Example</a></h2>
<div class='information'><div class='tooltip ignore'><span class='tooltiptext'>This example is not tested</span></div></div><pre class="rust rust-example-rendered ignore">
<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">actix</span>;
<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">actix_web</span>;
<span class="kw">extern</span> <span class="kw">crate</span> <span class="ident">rustls</span>;
<span class="kw">use</span> <span class="ident">actix_web</span>::{<span class="ident">http</span>, <span class="ident">middleware</span>, <span class="ident">server</span>, <span class="ident">App</span>, <span class="ident">Error</span>, <span class="ident">HttpRequest</span>, <span class="ident">HttpResponse</span>, <span class="ident">Responder</span>};
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::<span class="ident">BufReader</span>;
<span class="kw">use</span> <span class="ident">rustls</span>::<span class="ident">internal</span>::<span class="ident">pemfile</span>::{<span class="ident">certs</span>, <span class="ident">rsa_private_keys</span>};
<span class="kw">use</span> <span class="ident">rustls</span>::{<span class="ident">NoClientAuth</span>, <span class="ident">ServerConfig</span>};
<span class="kw">fn</span> <span class="ident">index</span>(<span class="ident">req</span>: <span class="kw-2">&amp;</span><span class="ident">HttpRequest</span>) <span class="op">-&gt;</span> <span class="prelude-ty">Result</span><span class="op">&lt;</span><span class="ident">HttpResponse</span>, <span class="ident">Error</span><span class="op">&gt;</span> {
<span class="prelude-val">Ok</span>(<span class="ident">HttpResponse</span>::<span class="prelude-val">Ok</span>().<span class="ident">content_type</span>(<span class="string">&quot;text/plain&quot;</span>).<span class="ident">body</span>(<span class="string">&quot;Welcome!&quot;</span>))
}
<span class="kw">fn</span> <span class="ident">load_ssl</span>() <span class="op">-&gt;</span> <span class="ident">ServerConfig</span> {
<span class="kw">use</span> <span class="ident">std</span>::<span class="ident">io</span>::<span class="ident">BufReader</span>;
<span class="kw">const</span> <span class="ident">CERT</span>: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="macro">include_bytes</span><span class="macro">!</span>(<span class="string">&quot;../cert.pem&quot;</span>);
<span class="kw">const</span> <span class="ident">KEY</span>: <span class="kw-2">&amp;</span><span class="lifetime">&#39;static</span> [<span class="ident">u8</span>] <span class="op">=</span> <span class="macro">include_bytes</span><span class="macro">!</span>(<span class="string">&quot;../key.pem&quot;</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">cert</span> <span class="op">=</span> <span class="ident">BufReader</span>::<span class="ident">new</span>(<span class="ident">CERT</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">key</span> <span class="op">=</span> <span class="ident">BufReader</span>::<span class="ident">new</span>(<span class="ident">KEY</span>);
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">config</span> <span class="op">=</span> <span class="ident">ServerConfig</span>::<span class="ident">new</span>(<span class="ident">NoClientAuth</span>::<span class="ident">new</span>());
<span class="kw">let</span> <span class="ident">cert_chain</span> <span class="op">=</span> <span class="ident">certs</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">cert</span>).<span class="ident">unwrap</span>();
<span class="kw">let</span> <span class="kw-2">mut</span> <span class="ident">keys</span> <span class="op">=</span> <span class="ident">rsa_private_keys</span>(<span class="kw-2">&amp;</span><span class="kw-2">mut</span> <span class="ident">key</span>).<span class="ident">unwrap</span>();
<span class="ident">config</span>.<span class="ident">set_single_cert</span>(<span class="ident">cert_chain</span>, <span class="ident">keys</span>.<span class="ident">remove</span>(<span class="number">0</span>)).<span class="ident">unwrap</span>();
<span class="ident">config</span>
}
<span class="kw">fn</span> <span class="ident">main</span>() {
<span class="kw">let</span> <span class="ident">sys</span> <span class="op">=</span> <span class="ident">actix</span>::<span class="ident">System</span>::<span class="ident">new</span>(<span class="string">&quot;http-server&quot;</span>);
<span class="comment">// load ssl keys</span>
<span class="kw">let</span> <span class="ident">config</span> <span class="op">=</span> <span class="ident">load_ssl</span>();
<span class="comment">// create and start server at once</span>
<span class="ident">server</span>::<span class="ident">new</span>(<span class="op">||</span> {
<span class="ident">App</span>::<span class="ident">new</span>()
<span class="comment">// register simple handler, handle all methods</span>
.<span class="ident">resource</span>(<span class="string">&quot;/index.html&quot;</span>, <span class="op">|</span><span class="ident">r</span><span class="op">|</span> <span class="ident">r</span>.<span class="ident">f</span>(<span class="ident">index</span>))
}))
}).<span class="ident">bind_rustls</span>(<span class="string">&quot;127.0.0.1:8443&quot;</span>, <span class="ident">config</span>)
.<span class="ident">unwrap</span>()
.<span class="ident">start</span>();
<span class="macro">println</span><span class="macro">!</span>(<span class="string">&quot;Started http server: 127.0.0.1:8080&quot;</span>);
<span class="comment">//Run system so that server would start accepting connections</span>
<span class="kw">let</span> <span class="kw">_</span> <span class="op">=</span> <span class="ident">sys</span>.<span class="ident">run</span>();
}</pre>
2018-07-21 13:09:47 +02:00
</div><h2 id='structs' class='section-header'><a href="#structs">Structs</a></h2>
<table>
<tr class=' module-item'>
<td><a class="struct" href="struct.HttpServer.html"
title='struct actix_web::server::HttpServer'>HttpServer</a></td>
<td class='docblock-short'>
<p>An HTTP Server</p>
</td>
</tr>
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<tr class=' module-item'>
<td><a class="struct" href="struct.OpensslAcceptor.html"
title='struct actix_web::server::OpensslAcceptor'>OpensslAcceptor</a></td>
<td class='docblock-short'>
<p>Support <code>SSL</code> connections via openssl package</p>
</td>
</tr>
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<tr class=' module-item'>
<td><a class="struct" href="struct.PauseServer.html"
title='struct actix_web::server::PauseServer'>PauseServer</a></td>
<td class='docblock-short'>
<p>Pause accepting incoming connections</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.Request.html"
title='struct actix_web::server::Request'>Request</a></td>
<td class='docblock-short'>
<p>Request's context</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.ResumeServer.html"
title='struct actix_web::server::ResumeServer'>ResumeServer</a></td>
<td class='docblock-short'>
<p>Resume accepting incoming connections</p>
</td>
</tr>
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<tr class=' module-item'>
<td><a class="struct" href="struct.ServerFlags.html"
title='struct actix_web::server::ServerFlags'>ServerFlags</a></td>
<td class='docblock-short'>
<p>Flags that can be used to configure HTTP Server.</p>
</td>
</tr>
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<tr class=' module-item'>
<td><a class="struct" href="struct.ServerSettings.html"
title='struct actix_web::server::ServerSettings'>ServerSettings</a></td>
<td class='docblock-short'>
<p>Various server settings</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="struct" href="struct.StopServer.html"
title='struct actix_web::server::StopServer'>StopServer</a></td>
<td class='docblock-short'>
<p>Stop incoming connection processing, stop all workers and exit.</p>
</td>
</tr></table><h2 id='enums' class='section-header'><a href="#enums">Enums</a></h2>
<table>
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<tr class=' module-item'>
<td><a class="enum" href="enum.AcceptorError.html"
title='enum actix_web::server::AcceptorError'>AcceptorError</a></td>
<td class='docblock-short'>
<p>Errors produced by <code>AcceptorError</code> service.</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="enum" href="enum.HttpDispatchError.html"
title='enum actix_web::server::HttpDispatchError'>HttpDispatchError</a></td>
<td class='docblock-short'>
<p>A set of errors that can occur during dispatching http requests</p>
</td>
</tr>
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<tr class=' module-item'>
<td><a class="enum" href="enum.KeepAlive.html"
title='enum actix_web::server::KeepAlive'>KeepAlive</a></td>
<td class='docblock-short'>
<p>Server keep-alive setting</p>
</td>
</tr></table><h2 id='traits' class='section-header'><a href="#traits">Traits</a></h2>
<table>
<tr class=' module-item'>
<td><a class="trait" href="trait.HttpHandler.html"
title='trait actix_web::server::HttpHandler'>HttpHandler</a></td>
<td class='docblock-short'>
<p>Low level http request handler</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="trait" href="trait.HttpHandlerTask.html"
title='trait actix_web::server::HttpHandlerTask'>HttpHandlerTask</a></td>
<td class='docblock-short'>
<p>Low level http request handler</p>
</td>
</tr>
<tr class=' module-item'>
<td><a class="trait" href="trait.IntoHttpHandler.html"
title='trait actix_web::server::IntoHttpHandler'>IntoHttpHandler</a></td>
<td class='docblock-short'>
<p>Conversion helper trait</p>
</td>
</tr></table><h2 id='functions' class='section-header'><a href="#functions">Functions</a></h2>
<table>
<tr class=' module-item'>
<td><a class="fn" href="fn.new.html"
title='fn actix_web::server::new'>new</a></td>
<td class='docblock-short'>
<p>Create new http server with application factory.</p>
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</td>
</tr>
<tr class=' module-item'>
<td><a class="fn" href="fn.openssl_acceptor_with_flags.html"
title='fn actix_web::server::openssl_acceptor_with_flags'>openssl_acceptor_with_flags</a></td>
<td class='docblock-short'>
<p>Configure <code>SslAcceptorBuilder</code> with custom server flags.</p>
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</td>
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