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diff --git a/docs/en/cowboy/2.4/manual/cowboy_middleware/index.html b/docs/en/cowboy/2.4/manual/cowboy_middleware/index.html new file mode 100644 index 00000000..4d70e3da --- /dev/null +++ b/docs/en/cowboy/2.4/manual/cowboy_middleware/index.html @@ -0,0 +1,253 @@ +<!DOCTYPE html> +<html lang="en"> + +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> + <meta name="description" content=""> + <meta name="author" content="Loïc Hoguin based on a design from (Soft10) Pol Cámara"> + + <meta name="generator" content="Hugo 0.37.1" /> + + <title>Nine Nines: cowboy_middleware(3)</title> + + <link href='https://fonts.googleapis.com/css?family=Open+Sans:400,700,400italic' rel='stylesheet' type='text/css'> + <link href="/css/99s.css?r=1" rel="stylesheet"> + + <link rel="shortcut icon" href="/img/ico/favicon.ico"> + <link rel="apple-touch-icon-precomposed" sizes="114x114" href="/img/ico/apple-touch-icon-114.png"> + <link rel="apple-touch-icon-precomposed" sizes="72x72" href="/img/ico/apple-touch-icon-72.png"> + <link rel="apple-touch-icon-precomposed" href="/img/ico/apple-touch-icon-57.png"> + + +</head> + + +<body class=""> + <header id="page-head"> + <div id="topbar" class="container"> + <div class="row"> + <div class="span2"> + <h1 id="logo"><a href="/" title="99s">99s</a></h1> + </div> + <div class="span10"> + + <div id="side-header"> + <nav> + <ul> + <li><a title="Hear my thoughts" href="/articles">Articles</a></li> + <li><a title="Watch my talks" href="/talks">Talks</a></li> + <li class="active"><a title="Read the docs" href="/docs">Documentation</a></li> + <li><a title="Request my services" href="/services">Consulting & Training</a></li> + </ul> + </nav> + <ul id="social"> + <li> + <a href="https://github.com/ninenines" title="Check my Github repositories"><img src="/img/ico_github.png" data-hover="/img/ico_github_alt.png" alt="Github"></a> + </li> + <li> + <a title="Contact me" href="mailto:[email protected]"><img src="/img/ico_mail.png" data-hover="/img/ico_mail_alt.png"></a> + </li> + </ul> + </div> + </div> + </div> + </div> + + +</header> + +<div id="contents" class="two_col"> +<div class="container"> +<div class="row"> +<div id="docs" class="span9 maincol"> + +<h1 class="lined-header"><span>cowboy_middleware(3)</span></h1> + +<div class="sect1"> +<h2 id="_name">Name</h2> +<div class="sectionbody"> +<div class="paragraph"><p>cowboy_middleware - Middlewares</p></div> +</div> +</div> +<div class="sect1"> +<h2 id="_description">Description</h2> +<div class="sectionbody"> +<div class="paragraph"><p>The module <code>cowboy_middleware</code> defines a callback interface for +Cowboy middlewares.</p></div> +<div class="paragraph"><p>Middlewares process the request sequentially in the order they +are configured.</p></div> +</div> +</div> +<div class="sect1"> +<h2 id="_callbacks">Callbacks</h2> +<div class="sectionbody"> +<div class="paragraph"><p>Middlewares implement the following interface:</p></div> +<div class="listingblock"> +<div class="content"><!-- Generator: GNU source-highlight +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><span style="font-weight: bold"><span style="color: #000000">execute</span></span>(<span style="color: #009900">Req</span>, <span style="color: #009900">Env</span>) + <span style="color: #990000">-></span> {<span style="color: #FF6600">ok</span>, <span style="color: #009900">Req</span>, <span style="color: #009900">Env</span>} + | {<span style="color: #FF6600">suspend</span>, <span style="font-weight: bold"><span style="color: #000000">module</span></span>(), <span style="font-weight: bold"><span style="color: #000080">atom</span></span>(), [<span style="font-weight: bold"><span style="color: #000000">any</span></span>()]} + | {<span style="color: #FF6600">stop</span>, <span style="color: #009900">Req</span>} + +<span style="color: #009900">Req</span> <span style="color: #990000">::</span> <span style="font-weight: bold"><span style="color: #000000">cowboy_req:req</span></span>() +<span style="color: #009900">Env</span> <span style="color: #990000">::</span> <span style="font-weight: bold"><span style="color: #000000">cowboy_middleware:env</span></span>()</tt></pre></div></div> +<div class="paragraph"><p>The <code>execute/2</code> is the only callback that needs to be +implemented. It must execute the middleware and return +with instructions for Cowboy.</p></div> +<div class="dlist"><dl> +<dt class="hdlist1"> +ok +</dt> +<dd> +<p> +Cowboy should continue processing the request using the +returned Req object and environment. +</p> +</dd> +<dt class="hdlist1"> +suspend +</dt> +<dd> +<p> +Cowboy will hibernate the process. When resuming, Cowboy +will apply the returned module, function and arguments. +</p> +</dd> +<dt class="hdlist1"> +stop +</dt> +<dd> +<p> +Cowboy will stop middleware execution. No other middleware +will be executed. This effectively ends the processing of +the request. +</p> +</dd> +</dl></div> +</div> +</div> +<div class="sect1"> +<h2 id="_types">Types</h2> +<div class="sectionbody"> +<div class="sect2"> +<h3 id="_env">env()</h3> +<div class="listingblock"> +<div class="content"><!-- Generator: GNU source-highlight +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><span style="font-weight: bold"><span style="color: #000000">env</span></span>() <span style="color: #990000">::</span> #{<span style="font-weight: bold"><span style="color: #000080">atom</span></span>() <span style="color: #990000">=></span> <span style="font-weight: bold"><span style="color: #000000">any</span></span>()}</tt></pre></div></div> +<div class="paragraph"><p>Middleware environment.</p></div> +<div class="paragraph"><p>A new environment is created for every request. The initial +environment contained the user configured environment values +(like <code>dispatch</code> for example) plus the <code>listener</code> value which +contains the name of the listener for this connection.</p></div> +<div class="paragraph"><p>Middlewares may modify the environment as necessary.</p></div> +</div> +</div> +</div> +<div class="sect1"> +<h2 id="_changelog">Changelog</h2> +<div class="sectionbody"> +<div class="ulist"><ul> +<li> +<p> +<strong>2.0</strong>: The <code>env</code> type is now a map instead of a proplist. +</p> +</li> +<li> +<p> +<strong>1.0</strong>: Behavior introduced. +</p> +</li> +</ul></div> +</div> +</div> +<div class="sect1"> +<h2 id="_see_also">See also</h2> +<div class="sectionbody"> +<div class="paragraph"><p><a href="..">cowboy(7)</a></p></div> +</div> +</div> + + + + + +</div> + +<div class="span3 sidecol"> + + +<h3> + Cowboy + 2.4 + Function Reference + +</h3> + +<ul> + + <li><a href="/docs/en/cowboy/2.4/guide">User Guide</a></li> + + + <li><a href="/docs/en/cowboy/2.4/manual">Function Reference</a></li> + + +</ul> + +<h4 id="docs-nav">Navigation</h4> + +<h4>Version select</h4> +<ul> + + + + <li><a href="/docs/en/cowboy/2.4/manual">2.4</a></li> + + <li><a href="/docs/en/cowboy/2.3/manual">2.3</a></li> + + <li><a href="/docs/en/cowboy/2.2/manual">2.2</a></li> + + <li><a href="/docs/en/cowboy/2.1/manual">2.1</a></li> + + <li><a href="/docs/en/cowboy/2.0/manual">2.0</a></li> + + <li><a href="/docs/en/cowboy/1.0/manual">1.0</a></li> + +</ul> + +</div> +</div> +</div> +</div> + + <footer> + <div class="container"> + <div class="row"> + <div class="span6"> + <p id="scroll-top"><a href="#">↑ Scroll to top</a></p> + <nav> + <ul> + <li><a href="mailto:[email protected]" title="Contact us">Contact us</a></li><li><a href="https://github.com/ninenines/ninenines.github.io" title="Github repository">Contribute to this site</a></li> + </ul> + </nav> + </div> + <div class="span6 credits"> + <p><img src="/img/footer_logo.png"></p> + <p>Copyright © Loïc Hoguin 2012-2018</p> + </div> + </div> + </div> + </footer> + + + <script src="/js/custom.js"></script> + </body> +</html> + + |