Inheritance: extends NilPortugues\Api\JsonApi\Server\Actions\GetResource
 /**
  * Get single resource.
  *
  * @param $id
  *
  * @return \Symfony\Component\HttpFoundation\Response
  */
 public function show($id)
 {
     $apiRequest = RequestFactory::create();
     $resource = new GetResource($this->serializer, $apiRequest->getFields(), $apiRequest->getIncludedRelationships());
     $find = $this->findResourceCallable($id);
     return $this->addHeaders($resource->get($id, get_class($this->getDataModel()), $find));
 }