Files
google-apis-rs/hyper/service/index.html
2024-03-05 21:06:01 +01:00

31 lines
7.0 KiB
HTML
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!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="Asynchronous Services"><title>hyper::service - 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/SourceCodePro-Semibold-d899c5a5c4aeb14a.ttf.woff2"><link rel="stylesheet" href="../../static.files/normalize-76eba96aa4d2e634.css"><link rel="stylesheet" href="../../static.files/rustdoc-ac92e1bbe349e143.css"><meta name="rustdoc-vars" data-root-path="../../" data-static-root-path="../../static.files/" data-current-crate="hyper" data-themes="" data-resource-suffix="" data-rustdoc-version="1.76.0 (07dca489a 2024-02-04)" data-channel="1.76.0" data-search-js="search-2b6ce74ff89ae146.js" data-settings-js="settings-4313503d2e1961c2.js" ><script src="../../static.files/storage-f2adc0d6ca4d09fb.js"></script><script defer src="../sidebar-items.js"></script><script defer src="../../static.files/main-305769736d49e732.js"></script><noscript><link rel="stylesheet" href="../../static.files/noscript-feafe1bb7466e4bd.css"></noscript><link rel="alternate icon" type="image/png" href="../../static.files/favicon-16x16-8b506e7a72182f1c.png"><link rel="alternate icon" type="image/png" href="../../static.files/favicon-32x32-422f7d1d52889060.png"><link rel="icon" type="image/svg+xml" href="../../static.files/favicon-2c020d218678b618.svg"></head><body class="rustdoc mod"><!--[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></nav><nav class="sidebar"><div class="sidebar-crate"><h2><a href="../../hyper/index.html">hyper</a><span class="version">0.14.27</span></h2></div><h2 class="location"><a href="#">Module service</a></h2><div class="sidebar-elems"><section><ul class="block"><li><a href="#traits">Traits</a></li><li><a href="#functions">Functions</a></li></ul></section><h2><a href="../index.html">In crate hyper</a></h2></div></nav><div class="sidebar-resizer"></div>
<main><div class="width-limiter"><nav class="sub"><form class="search-form"><span></span><div id="sidebar-button" tabindex="-1"><a href="../../hyper/all.html" title="show sidebar"></a></div><input class="search-input" name="search" aria-label="Run search in the documentation" autocomplete="off" spellcheck="false" placeholder="Click or press S to search, ? for more options…" type="search"><div id="help-button" tabindex="-1"><a href="../../help.html" title="help">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../static.files/wheel-7b819b6101059cd0.svg"></a></div></form></nav><section id="main-content" class="content"><div class="main-heading"><h1>Module <a href="../index.html">hyper</a>::<wbr><a class="mod" href="#">service</a><button id="copy-path" title="Copy item path to clipboard"><img src="../../static.files/clipboard-7571035ce49a181d.svg" width="19" height="18" alt="Copy item path"></button></h1><span class="out-of-band"><a class="src" href="../../src/hyper/service/mod.rs.html#1-55">source</a> · <button id="toggle-all-docs" title="collapse all docs">[<span>&#x2212;</span>]</button></span></div><details class="toggle top-doc" open><summary class="hideme"><span>Expand description</span></summary><div class="docblock"><p>Asynchronous Services</p>
<p>A <a href="trait.Service.html" title="trait hyper::service::Service"><code>Service</code></a> is a trait representing an asynchronous
function of a request to a response. Its similar to
<code>async fn(Request) -&gt; Result&lt;Response, Error&gt;</code>.</p>
<p>The argument and return value isnt strictly required to be for HTTP.
Therefore, hyper uses several “trait aliases” to reduce clutter around
bounds. These are:</p>
<ul>
<li><code>HttpService</code>: This is blanketly implemented for all types that
implement <code>Service&lt;http::Request&lt;B1&gt;, Response = http::Response&lt;B2&gt;&gt;</code>.</li>
<li><code>MakeService</code>: When a <code>Service</code> returns a new <code>Service</code> as its “response”,
we consider it a <code>MakeService</code>. Again, blanketly implemented in those cases.</li>
<li><code>MakeConnection</code>: A <code>Service</code> that returns a “connection”, a type that
implements <code>AsyncRead</code> and <code>AsyncWrite</code>.</li>
</ul>
<h2 id="httpservice"><a href="#httpservice">HttpService</a></h2>
<p>In hyper, especially in the server setting, a <code>Service</code> is usually bound
to a single connection. It defines how to respond to <strong>all</strong> requests that
connection will receive.</p>
<p>The helper <a href="fn.service_fn.html" title="fn hyper::service::service_fn"><code>service_fn</code></a> should be sufficient for most cases, but
if you need to implement <code>Service</code> for a type manually, you can follow the example
in <code>service_struct_impl.rs</code>.</p>
<h2 id="makeservice"><a href="#makeservice">MakeService</a></h2>
<p>Since a <code>Service</code> is bound to a single connection, a <a href="../server/struct.Server.html" title="struct hyper::server::Server"><code>Server</code></a>
needs a way to make them as it accepts connections. This is what a
<code>MakeService</code> does.</p>
<p>Resources that need to be shared by all <code>Service</code>s can be put into a
<code>MakeService</code>, and then passed to individual <code>Service</code>s when <code>call</code>
is called.</p>
</div></details><h2 id="traits" class="section-header"><a href="#traits">Traits</a></h2><ul class="item-table"><li><div class="item-name"><a class="trait" href="trait.Service.html" title="trait hyper::service::Service">Service</a></div><div class="desc docblock-short">An asynchronous function from a <code>Request</code> to a <code>Response</code>.</div></li></ul><h2 id="functions" class="section-header"><a href="#functions">Functions</a></h2><ul class="item-table"><li><div class="item-name"><a class="fn" href="fn.make_service_fn.html" title="fn hyper::service::make_service_fn">make_service_fn</a></div><div class="desc docblock-short">Create a <code>MakeService</code> from a function.</div></li><li><div class="item-name"><a class="fn" href="fn.service_fn.html" title="fn hyper::service::service_fn">service_fn</a></div><div class="desc docblock-short">Create a <code>Service</code> from a function.</div></li></ul></section></div></main></body></html>