Step 1: Setting up the bundle ============================= A) Download the Bundle ---------------------- Assuming you already have `set up a Symfony project`_, you can add the FOSRestBundle to it. Open a command console, enter your project directory and execute the following command to download the latest stable version of this bundle: .. code-block:: bash $ composer require friendsofsymfony/rest-bundle This command requires you to have Composer installed globally, as explained in the `installation chapter`_ of the Composer documentation. .. caution:: If you are not using Flex, you also have to enable the bundle by adding the following line in the ``app/AppKernel.php``:: // app/AppKernel.php class AppKernel extends Kernel { public function registerBundles() { $bundles = [ // ... new FOS\RestBundle\FOSRestBundle(), ]; // ... } } B) Enable a Serializer ---------------------- This bundle needs a serializer to work correctly. In most cases, you'll need to enable a serializer or install one. This bundle tries the following (in the given order) to determine the serializer to use: #. The one you configured using ``fos_rest.service.serializer`` (if you did). #. The JMS serializer, if the `JMSSerializerBundle`_ is available (and registered). #. The `Symfony Serializer`_ if it's enabled (or any service called ``serializer``). That was it! .. _`set up a Symfony project`: https://symfony.com/download .. _`installation chapter`: https://getcomposer.org/doc/00-intro.md .. _`JMSSerializer`: https://github.com/schmittjoh/serializer .. _`JMSSerializerBundle`: https://github.com/schmittjoh/JMSSerializerBundle .. _`Symfony Serializer`: http://symfony.com/doc/current/cookbook/serializer.html