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<h1 class="lined-header"><span>cowboy_req:headers(3)</span></h1>
<h2 id="_name">Name</h2>
<p>cowboy_req:headers - HTTP headers</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">headers</font></b>(<font color="#009900">Req</font> <font color="#990000">::</font> <b><font color="#000000">cowboy_req:req</font></b>()) <font color="#990000">-></font> <b><font color="#000000">cowboy:http_headers</font></b>()</tt></pre>
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<p>Return all request headers.</p>
<p>Request headers can also be obtained using pattern matching:</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>#{<font color="#FF6600">headers</font> <font color="#990000">:=</font> <font color="#009900">Headers</font>} <font color="#990000">=</font> <font color="#009900">Req</font><font color="#990000">.</font></tt></pre>
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<h2 id="_arguments">Arguments</h2>
<dl><dt>Req</dt>
<dd><p>The Req object.</p>
</dd>
</dl>
<h2 id="_return_value">Return value</h2>
<p>Headers are returned as a map with keys being lowercase binary strings, and values as binary strings.</p>
<h2 id="_changelog">Changelog</h2>
<ul><li><strong>2.0</strong>: Only the headers are returned, they are 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">Get all 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><font color="#009900">Headers</font> <font color="#990000">=</font> <b><font color="#000000">cowboy_req:headers</font></b>(<font color="#009900">Req</font>)<font color="#990000">.</font></tt></pre>
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<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.parse_header">cowboy_req:parse_header(3)</a></p>
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