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Merge pull request #336 from cordoval/patch-6

Update Resources/doc/3-listener-support.md
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2 parents 940e001 + fce36cd commit cf3e22ba2d6c1e8e7f40e48c4720f8a63a651f1d @lsmith77 lsmith77 committed Dec 7, 2012
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Step 3: Listener support
========================
+[Listeners](http://symfony.com/doc/master/cookbook/service_container/event_listener.html)
+are a way to hook into the REST handling of
+a request and in the preparation of a response to send back. The hooks in view relate
+to getting things from the request (parameter fetcher listener), doing some processing
+with the payload gotten from a request (body listener), formatting the response either
+with a template engine like twig or to json format or xml via the serializer (format
+listener), and finally also how to affect the response like in the previous listener
+but in things relating to the view (view response listener).
+
+With this in mind we now turn to explain each one of them.
+
All listeners except the ``mime_type`` one are disabled by default. You can
enable one or more of these listeners. For example, below you can see how to
enable all listeners:

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