How to send json to symfony2?

Question

JavaScript

Of course there is this way:

$data = json_encode( array('type'=>$type,'params'=>$params) );<br>
$headers = array( 'Content-type' => 'application-json; charset=utf8' );<br>
$responce = new \Symfony\Component\HttpFoundation\Response( $data, 200, $headers );<br>
return $responce;<br>

but isn't there something more ideologically correct? :)

Answer 1

JsonResponse

Answer 2

You have the ideologically correct option: the meaning of the controller is to receive an HTTP request, and then form and return an HTTP response (Symfony\Component\HttpFoundation\Response object), which is what happens to you. Only the MIME type for json is more correct than application/json.
In the documentation, by the way, there is an example of returning json :

use Symfony\Component\HttpFoundation\Response;

...
$response = new Response(json_encode(array('name' => $name)));
$response->headers->set('Content-Type', 'application/json');

Answer 3

ya nerd :)
routing.yml:
ExampleBundle_loadData: pattern: /data.{_format}/{type}/{params} defaults: { _controller: ExampleBundle:Default:loadData, _format:json } requirements: { _format: json|xml }
controller:

    public function loadDataAction($type, $params)
    {
        $return = array('type'=>$type,'params'=>$params);        
        return $this->render('ExampleBundle:Default:ajax.json.twig', array('data'=>$return));
    }

template (twig)
{{data|json_encode|raw}}

Answer 4

It's clear that this is an old question, but I also found it through a search.
Official solution:

use Symfony\Component\HttpFoundation\Response;

$response = new Response();
$response->setContent(json_encode(array(
    'data' => 123,
)));
$response->headers->set('Content-Type', 'application/json');

link to documentation article
And no view components

Answer 5

$response = new JsonResponse(['text' => 'text']);
return $response;