Flarum\Api\Controller\AbstractSerializeController::handle PHP Метод

    public function handle(ServerRequestInterface $request)
    {
        $document = new Document();
        static::$events->fire(new ConfigureApiController($this));
        $data = $this->data($request, $document);
        static::$events->fire(new PrepareApiData($this, $data, $request, $document));
        $serializer = static::$container->make($this->serializer);
        $serializer->setActor($request->getAttribute('actor'));
        $element = $this->createElement($data, $serializer)->with($this->extractInclude($request))->fields($this->extractFields($request));
        $document->setData($element);
        return new JsonApiResponse($document);
    }