/**
* @Route("/exchange/{file}.{_format}", defaults={"_format"="json"}, name="exchange")
* @Method({"GET"})
*
* @param string $file
* @return void
* @author Fran Iglesias
*/
public function exchangeAction($file)
{
$file = $this->get('kernel')->getRootDir() . '/../var/exchange/' . $file . '.json';
$response = new BinaryFileResponse($file);
$response->setTtl(0);
$response->headers->set('Content-Type', 'application/json');
return $response;
}
