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+<h1 class="lined-header"><span>cowboy_req:push(3)</span></h1>
+
+<h2 id="_name">Name</h2>
+<p>cowboy_req:push - Push a resource to the client</p>
+<h2 id="_description">Description</h2>
+<div class="listingblock"><div class="content"><!-- Generator: GNU source-highlight 3.1.8
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">push</font></b>(<font color="#009900">Path</font>, <font color="#009900">Headers</font>, <font color="#009900">Req</font> <font color="#990000">::</font> <b><font color="#000000">cowboy_req:req</font></b>())
+ <font color="#990000">-&gt;</font> <b><font color="#000000">push</font></b>(<font color="#009900">Path</font>, <font color="#009900">Headers</font>, <font color="#009900">Req</font>, #{})
+
+<b><font color="#000000">push</font></b>(<font color="#009900">Path</font>, <font color="#009900">Headers</font>, <font color="#009900">Req</font> <font color="#990000">::</font> <b><font color="#000000">cowboy_req:req</font></b>(), <font color="#009900">Opts</font>)
+ <font color="#990000">-&gt;</font> <font color="#FF6600">ok</font>
+
+<font color="#009900">Path</font> <font color="#990000">::</font> <b><font color="#000000">iodata</font></b>() <i><font color="#9A1900">%% case sensitive</font></i>
+<font color="#009900">Headers</font> <font color="#990000">::</font> <b><font color="#000000">cowboy:http_headers</font></b>()
+<font color="#009900">Opts</font> <font color="#990000">::</font> <b><font color="#000000">cowboy_req:push_opts</font></b>()</tt></pre>
+</div></div>
+<p>Push a resource to the client.</p>
+<p>Cowboy handles push requests the same way as if they came from the client, including the creation of a request handling process, routing and middlewares and so on.</p>
+<p>This function does nothing when the HTTP/1.1 protocol is used. You may call it safely without first checking whether the connection uses HTTP/2.</p>
+<p>The header names must be given as lowercase binary strings. While header names are case insensitive, Cowboy requires them to be given as lowercase to function properly.</p>
+<p>Note that the headers must be the headers the client is expected to send if it were to perform the request. They are therefore request headers, and not response headers.</p>
+<p>By default, Cowboy will use the GET method, an empty query string, and take the scheme, host and port directly from the current request&apos;s URI. You can override them by passing options.</p>
+<p>Note that clients may cancel the push or ignore it entirely. For example browsers may ignore the resource when the connection is not considered secure.</p>
+<p>It is not possible to push resources after sending a response. Any attempt will result in an error.</p>
+<h2 id="_arguments">Arguments</h2>
+<dl><dt>Path</dt>
+<dd><p>The status code for the response.</p>
+</dd>
+<dt>Headers</dt>
+<dd><p>The response headers.</p>
+<p>Header names must be given as lowercase binary strings.</p>
+</dd>
+<dt>Req</dt>
+<dd><p>The Req object.</p>
+</dd>
+<dt>Opts</dt>
+<dd><p>Customize the HTTP method or the URI scheme, host, port or query string.</p>
+</dd>
+</dl>
+<h2 id="_return_value">Return value</h2>
+<p>The atom <code>ok</code> is always returned. It can be safely ignored.</p>
+<h2 id="_changelog">Changelog</h2>
+<ul><li><strong>2.0</strong>: Function introduced.
+</li>
+</ul>
+<h2 id="_examples">Examples</h2>
+<div class="listingblock"><div class="title">Push a resource</div>
+<div class="content"><!-- Generator: GNU source-highlight 3.1.8
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">cowboy_req:push</font></b>(<font color="#FF0000">"/static/style.css"</font>, #{
+ <font color="#990000">&lt;&lt;</font><font color="#FF0000">"accept"</font><font color="#990000">&gt;&gt;</font> <font color="#990000">=&gt;</font> <font color="#990000">&lt;&lt;</font><font color="#FF0000">"text/css"</font><font color="#990000">&gt;&gt;</font>
+}, <font color="#009900">Req</font>),</tt></pre>
+</div></div>
+<div class="listingblock"><div class="title">Push a resource with a custom host</div>
+<div class="content"><!-- Generator: GNU source-highlight 3.1.8
+by Lorenzo Bettini
+http://www.lorenzobettini.it
+http://www.gnu.org/software/src-highlite -->
+<pre><tt><b><font color="#000000">cowboy_req:push</font></b>(<font color="#FF0000">"/static/style.css"</font>, #{
+ <font color="#990000">&lt;&lt;</font><font color="#FF0000">"accept"</font><font color="#990000">&gt;&gt;</font> <font color="#990000">=&gt;</font> <font color="#990000">&lt;&lt;</font><font color="#FF0000">"text/css"</font><font color="#990000">&gt;&gt;</font>
+}, #{<font color="#0000FF">host</font> <font color="#990000">=&gt;</font> <font color="#990000">&lt;&lt;</font><font color="#FF0000">"cdn.example.org"</font><font color="#990000">&gt;&gt;</font>}, <font color="#009900">Req</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.inform">cowboy_req:inform(3)</a>, <a href="../cowboy_req.reply">cowboy_req:reply(3)</a>, <a href="../cowboy_req.stream_reply">cowboy_req:stream_reply(3)</a></p>
+
+
+
+
+
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+<h3>
+ Cowboy
+ 2.6
+ Function Reference
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+</h3>
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+
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