/**
  * index display media location data
  *
  * @param  int $media_id
  * @param  Application $app
  * @return array $response
  */
 public function indexAction($media_id, Application $app)
 {
     $v = $this->instagram->validateMedia($media_id);
     if ($v['status'] === 200) {
         $response = self::locationGenerator($media_id, $v['location']);
     } else {
         $response = $v['error'];
     }
     return $app->json($response, $v['status']);
 }