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diff --git a/docs/en/cowboy/2.8/manual/cowboy_req.parse_header/index.html b/docs/en/cowboy/2.8/manual/cowboy_req.parse_header/index.html new file mode 100644 index 00000000..ee101649 --- /dev/null +++ b/docs/en/cowboy/2.8/manual/cowboy_req.parse_header/index.html @@ -0,0 +1,426 @@ +<!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"> + + <title>Nine Nines: cowboy_req:parse_header(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=7" 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_req:parse_header(3)</span></h1> + +<h2 id="_name">Name</h2> +<p>cowboy_req:parse_header - Parse the given HTTP header</p> +<h2 id="_description">Description</h2> +<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#009900">Name</font>, <font color="#009900">Req</font>) <font color="#990000">-></font> <font color="#009900">ParsedValue</font> | <font color="#009900">Default</font> +<b><font color="#000000">parse_header</font></b>(<font color="#009900">Name</font>, <font color="#009900">Req</font>, <font color="#009900">Default</font>) <font color="#990000">-></font> <font color="#009900">ParsedValue</font> | <font color="#009900">Default</font> + +<font color="#009900">Name</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() +<font color="#009900">Req</font> <font color="#990000">::</font> <b><font color="#000000">cowboy_req:req</font></b>() +<font color="#009900">ParsedValue</font> <font color="#990000">::</font> <b><font color="#000000">any</font></b>() +<font color="#009900">Default</font> <font color="#990000">::</font> <b><font color="#000000">any</font></b>()</tt></pre> +</div></div> +<p>Parse the given HTTP header.</p> +<p>The header name must be given as a lowercase binary string. While header names are case insensitive, Cowboy requires them to be given as lowercase to function properly.</p> +<p>The type of the parsed value varies depending on the header. Similarly, the default value when calling <code>cowboy_req:parse_header/2</code> differs depending on the header.</p> +<h2 id="_arguments">Arguments</h2> +<dl><dt>Name</dt> +<dd><p>Desired HTTP header name as a lowercase binary string.</p> +</dd> +<dt>Req</dt> +<dd><p>The Req object.</p> +</dd> +<dt>Default</dt> +<dd><p>Default value returned when the header is missing.</p> +</dd> +</dl> +<h2 id="_return_value">Return value</h2> +<p>The parsed header value varies depending on the header. When the header is missing, the default argument is returned.</p> +<h2 id="_headers">Headers</h2> +<p>The following snippets detail the types returned by the different headers. Unless mentioned otherwise, the default value when the header is missing will be <code>undefined</code>:</p> +<div class="listingblock"><div class="title">accept</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"accept"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) + <font color="#990000">-></font> [{{<font color="#009900">Type</font>, <font color="#009900">SubType</font>, <font color="#009900">Params</font>}, <font color="#009900">Quality</font>, <font color="#009900">AcceptExt</font>}] + +<font color="#009900">Type</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i> +<font color="#009900">SubType</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i> +<font color="#009900">Params</font> <font color="#990000">::</font> [{<font color="#009900">Key</font>, <font color="#009900">Value</font>}] +<font color="#009900">Quality</font> <font color="#990000">::</font> <font color="#993399">0</font><font color="#990000">..</font><font color="#993399">1000</font> +<font color="#009900">AcceptExt</font> <font color="#990000">::</font> [<font color="#009900">Key</font> | {<font color="#009900">Key</font>, <font color="#009900">Value</font>}] +<font color="#009900">Key</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i> +<font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i></tt></pre> +</div></div> +<div class="listingblock"><div class="title">accept-charset, accept-encoding and accept-language</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#009900">Name</font>, <font color="#009900">Req</font>) <font color="#990000">-></font> [{<font color="#009900">Value</font>, <font color="#009900">Quality</font>}] + +<font color="#009900">Name</font> <font color="#990000">::</font> <font color="#990000"><<</font><font color="#FF0000">"accept-charset"</font><font color="#990000">>></font> + | <font color="#990000"><<</font><font color="#FF0000">"accept-encoding"</font><font color="#990000">>></font> + | <font color="#990000"><<</font><font color="#FF0000">"accept-language"</font><font color="#990000">>></font> +<font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i> +<font color="#009900">Quality</font> <font color="#990000">::</font> <font color="#993399">0</font><font color="#990000">..</font><font color="#993399">1000</font></tt></pre> +</div></div> +<div class="listingblock"><div class="title">access-control-request-headers</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"access-control-request-headers"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) + <font color="#990000">-></font> [<font color="#009900">Header</font>] + +<font color="#009900">Header</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i></tt></pre> +</div></div> +<div class="listingblock"><div class="title">access-control-request-method</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"access-control-request-method"</font><font color="#990000">>></font>) + <font color="#990000">-></font> <font color="#009900">Method</font> + +<font color="#009900">Method</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i></tt></pre> +</div></div> +<div class="listingblock"><div class="title">authorization and proxy-authorization</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"authorization"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) + <font color="#990000">-></font> {<font color="#FF6600">basic</font>, <font color="#009900">Username</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>(), <font color="#009900">Password</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>()} + | {<font color="#FF6600">bearer</font>, <font color="#009900">Token</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>()} + | {<font color="#FF6600">digest</font>, [{<font color="#009900">Key</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>(), <font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>()}]}</tt></pre> +</div></div> +<!-- @todo Currently also parses connection. Do we want this? Should it be documented? Use case?--> +<div class="listingblock"><div class="title">content-encoding and content-language</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#009900">Name</font>, <font color="#009900">Req</font>) <font color="#990000">-></font> [<font color="#009900">Value</font>] + +<font color="#009900">Name</font> <font color="#990000">::</font> <font color="#990000"><<</font><font color="#FF0000">"content-encoding"</font><font color="#990000">>></font> + | <font color="#990000"><<</font><font color="#FF0000">"content-language"</font><font color="#990000">>></font> +<font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i></tt></pre> +</div></div> +<div class="listingblock"><div class="title">content-length</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"content-length"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) <font color="#990000">-></font> <b><font color="#000000">non_neg_integer</font></b>()</tt></pre> +</div></div> +<p>When the content-length header is missing, <code>0</code> is returned.</p> +<div class="listingblock"><div class="title">content-type</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"content-type"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) + <font color="#990000">-></font> {<font color="#009900">Type</font>, <font color="#009900">SubType</font>, <font color="#009900">Params</font>} + +<font color="#009900">Type</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i> +<font color="#009900">SubType</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i> +<font color="#009900">Params</font> <font color="#990000">::</font> [{<font color="#009900">Key</font>, <font color="#009900">Value</font>}] +<font color="#009900">Key</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i> +<font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive;</font></i></tt></pre> +</div></div> +<p>Note that the value for the charset parameter is case insensitive and returned as a lowercase binary string.</p> +<div class="listingblock"><div class="title">cookie</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"cookie"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) <font color="#990000">-></font> [{<font color="#009900">Name</font>, <font color="#009900">Value</font>}] + +<font color="#009900">Name</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i> +<font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i></tt></pre> +</div></div> +<p>When the cookie header is missing, <code>[]</code> is returned.</p> +<p>While an empty cookie header is not valid, some clients do send it. Cowboy will in this case also return <code>[]</code>.</p> +<div class="listingblock"><div class="title">expect</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"expect"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) <font color="#990000">-></font> <font color="#FF6600">continue</font></tt></pre> +</div></div> +<div class="listingblock"><div class="title">if-match and if-none-match</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#009900">Name</font>, <font color="#009900">Req</font>) + <font color="#990000">-></font> <font color="#FF6600">'*'</font> | [{<font color="#FF6600">weak</font> | <font color="#FF6600">strong</font>, <font color="#009900">OpaqueTag</font>}] + +<font color="#009900">Name</font> <font color="#990000">::</font> <font color="#990000"><<</font><font color="#FF0000">"if-match"</font><font color="#990000">>></font> + | <font color="#990000"><<</font><font color="#FF0000">"if-none-match"</font><font color="#990000">>></font> +<font color="#009900">OpaqueTag</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i></tt></pre> +</div></div> +<div class="listingblock"><div class="title">if-modified-since and if-unmodified-since</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#009900">Name</font>, <font color="#009900">Req</font>) <font color="#990000">-></font> <b><font color="#000000">calendar:datetime</font></b>()</tt></pre> +</div></div> +<div class="listingblock"><div class="title">max-forwards</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"max-forwards"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) <font color="#990000">-></font> <b><font color="#000000">non_neg_integer</font></b>()</tt></pre> +</div></div> +<div class="listingblock"><div class="title">origin</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"origin"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) + <font color="#990000">-></font> [{<font color="#009900">Scheme</font>, <font color="#009900">Host</font>, <font color="#009900">Port</font>} | <font color="#009900">GUID</font>] + +<font color="#009900">Scheme</font> <font color="#990000">::</font> <font color="#990000"><<</font><font color="#FF0000">"http"</font><font color="#990000">>></font> | <font color="#990000"><<</font><font color="#FF0000">"https"</font><font color="#990000">>></font> +<font color="#009900">Host</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i> +<font color="#009900">Port</font> <font color="#990000">::</font> <font color="#993399">0</font><font color="#990000">..</font><font color="#993399">65535</font> +<font color="#009900">GUID</font> <font color="#990000">::</font> <b><font color="#000080">reference</font></b>()</tt></pre> +</div></div> +<p>Cowboy generates a reference in place of a GUID when the URI uses an unsupported uri-scheme or is not an absolute URI.</p> +<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"range"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) <font color="#990000">-></font> {<font color="#009900">From</font>, <font color="#009900">To</font>} | <font color="#009900">Final</font> + +<font color="#009900">From</font> <font color="#990000">::</font> <b><font color="#000000">non_neg_integer</font></b>() +<font color="#009900">To</font> <font color="#990000">::</font> <b><font color="#000000">non_neg_integer</font></b>() | <font color="#FF6600">infinity</font> +<font color="#009900">Final</font> <font color="#990000">::</font> <b><font color="#000000">neg_integer</font></b>()</tt></pre> +</div></div> +<div class="listingblock"><div class="title">sec-websocket-extensions</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"sec-websocket-extensions"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) + <font color="#990000">-></font> [{<font color="#009900">Extension</font>, <font color="#009900">Params</font>}] + +<font color="#009900">Extension</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i> +<font color="#009900">Params</font> <font color="#990000">::</font> [<font color="#009900">Key</font> | {<font color="#009900">Key</font>, <font color="#009900">Value</font>}] +<font color="#009900">Key</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i> +<font color="#009900">Value</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i></tt></pre> +</div></div> +<div class="listingblock"><div class="title">sec-websocket-protocol and upgrade</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#009900">Name</font>, <font color="#009900">Req</font>) <font color="#990000">-></font> [<font color="#009900">Token</font>] + +<font color="#009900">Name</font> <font color="#990000">::</font> <font color="#990000"><<</font><font color="#FF0000">"sec-websocket-protocol"</font><font color="#990000">>></font> + | <font color="#990000"><<</font><font color="#FF0000">"upgrade"</font><font color="#990000">>></font> +<font color="#009900">Token</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i></tt></pre> +</div></div> +<div class="listingblock"><div class="title">trailer</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#009900">Name</font>, <font color="#009900">Req</font>) <font color="#990000">-></font> [<font color="#009900">Header</font>] + +<font color="#009900">Header</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case insensitive</font></i></tt></pre> +</div></div> +<div class="listingblock"><div class="title">x-forwarded-for</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><b><font color="#000000">parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"x-forwarded-for"</font><font color="#990000">>></font>, <font color="#009900">Req</font>) <font color="#990000">-></font> [<font color="#009900">Token</font>] + +<font color="#009900">Token</font> <font color="#990000">::</font> <b><font color="#000080">binary</font></b>() <i><font color="#9A1900">%% case sensitive</font></i></tt></pre> +</div></div> +<p>This function will crash when attempting to parse a header Cowboy does not currently understand.</p> +<h2 id="_changelog">Changelog</h2> +<ul><li><strong>2.8</strong>: The function now parses <code>access-control-request-headers</code>, <code>access-control-request-method</code>, <code>content-encoding</code>, <code>content-language</code>, <code>max-forwards</code>, <code>origin</code>, <code>proxy-authorization</code> and <code>trailer</code>. +</li> +<li><strong>2.0</strong>: Only the parsed header value is returned, it is no longer wrapped in a tuple. +</li> +<li><strong>1.0</strong>: Function introduced. +</li> +</ul> +<h2 id="_examples">Examples</h2> +<div class="listingblock"><div class="title">Parse the accept header with a custom default value</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><i><font color="#9A1900">%% Accept everything when header is missing.</font></i> +<font color="#009900">Accept</font> <font color="#990000">=</font> <b><font color="#000000">cowboy_req:parse_header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"accept"</font><font color="#990000">>></font>, <font color="#009900">Req</font>, + [{{ <font color="#990000"><<</font><font color="#FF0000">"*"</font><font color="#990000">>></font>, <font color="#990000"><<</font><font color="#FF0000">"*"</font><font color="#990000">>></font>, []}, <font color="#993399">1000</font>, []}])<font color="#990000">.</font></tt></pre> +</div></div> +<div class="listingblock"><div class="title">Parse the content-length header</div> +<div class="content"><!-- Generator: GNU source-highlight 3.1.9 +by Lorenzo Bettini +http://www.lorenzobettini.it +http://www.gnu.org/software/src-highlite --> +<pre><tt><i><font color="#9A1900">%% Default content-length is 0.</font></i> +<font color="#009900">Length</font> <font color="#990000">=</font> <b><font color="#000000">cowboy_req:header</font></b>(<font color="#990000"><<</font><font color="#FF0000">"content-length"</font><font color="#990000">>></font>, <font color="#009900">Req</font>)<font color="#990000">.</font></tt></pre> +</div></div> +<h2 id="_see_also">See also</h2> +<p><a href="../cowboy_req">cowboy_req(3)</a>, <a href="../cowboy_req.header">cowboy_req:header(3)</a>, <a href="../cowboy_req.headers">cowboy_req:headers(3)</a></p> + + + + + + +</div> + +<div class="span3 sidecol"> + + +<h3> + Cowboy + 2.8 + Function Reference + +</h3> + +<ul> + + <li><a href="/docs/en/cowboy/2.8/guide">User Guide</a></li> + + + <li><a href="/docs/en/cowboy/2.8/manual">Function Reference</a></li> + + +</ul> + +<h4 id="docs-nav">Navigation</h4> + +<h4>Version select</h4> +<ul> + + + + <li><a href="/docs/en/cowboy/2.8/manual">2.8</a></li> + + <li><a href="/docs/en/cowboy/2.7/manual">2.7</a></li> + + <li><a href="/docs/en/cowboy/2.6/manual">2.6</a></li> + + <li><a href="/docs/en/cowboy/2.5/manual">2.5</a></li> + + <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> + +</ul> + +<h3 id="_like_my_work__donate">Like my work? 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