Return a JSON array from a Controller in Symfony

Question

I am trying return a JSON response from a controller in Symfony 2. Form example, in Spring MVC I can get a JSON response with @ResponseBody annotattion. I want get a JSON re

Answer 1

You need to change your code this way:

/**
 * @Route(
 *      "/drop/getCategory/",
 *      name="getCategory"
 * )
 * @Method("GET")
 */
public function getAllCategoryAction() {
    $categorias = $this->getDoctrine()
                       ->getRepository('AppBundle:Categoria')
                       ->findAll();

    $categorias = $this->get('serializer')->serialize($categorias, 'json');

    $response = new Response($categorias);

    $response->headers->set('Content-Type', 'application/json');
    return $response;
}

If the serializer service is not enabled, you have to enable it in app/config/config.yml:

    framework:
        # ...
        serializer:
            enabled: true

For more advanced options for serialization, you can install JMSSerializerBundle