public function encodeResponse($response)
 {
     $serialized = json_encode($response, true);
     $encrypter = new \Encryption\Encrypter($this->encryptionKey);
     $response = $encrypter->encode($serialized);
     return $response;
 }
 public function decodeResponse($encoded)
 {
     $encrypter = new \Encryption\Encrypter($this->encryptionKey);
     $decoded = json_decode($encrypter->decode($encoded), true);
     return $decoded;
 }