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<h1 class="lined-header"><span>cowboy(7)</span></h1>

<div class="sect1">
<h2 id="_name">Name</h2>
<div class="sectionbody">
<div class="paragraph"><p>cowboy - Small, fast, modular HTTP server.</p></div>
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<div class="sect1">
<h2 id="_dependencies">Dependencies</h2>
<div class="sectionbody">
<div class="paragraph"><p>The <code>cowboy</code> application uses the Erlang applications <code>ranch</code>
for listening and accepting TCP connections, <code>crypto</code> for
establishing Websocket connections, and <code>cowlib</code> for parsing and
building messages for Web protocols. These dependencies must
be loaded for the <code>cowboy</code> application to work. In an embedded
environment this means that they need to be started with the
<code>application:start/{1,2}</code> function before the <code>cowboy</code>
application is started.</p></div>
<div class="paragraph"><p>The <code>cowboy</code> application also uses the Erlang applications
<code>asn1</code>, <code>public_key</code> and <code>ssl</code> when listening for HTTPS connections.
These are started automatically if they weren&#8217;t before.</p></div>
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<div class="sect1">
<h2 id="_environment">Environment</h2>
<div class="sectionbody">
<div class="paragraph"><p>The <code>cowboy</code> application does not define any application
environment configuration parameters.</p></div>
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<h3>
	Cowboy
	2.0
	Function Reference
	
</h3>

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		<li><a href="/docs/en/cowboy/2.0/guide">User Guide</a></li>
	
	
		<li><a href="/docs/en/cowboy/2.0/manual">Function Reference</a></li>
	
	
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<h4>Version select</h4>
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		<li><a href="/docs/en/cowboy/1.0/manual">1.0</a></li>
	
		<li><a href="/docs/en/cowboy/2.0/manual">2.0</a></li>
	
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