App\Http\Controllers\BaseAPIController::createItem PHP Method

    protected function createItem($data, $transformer, $entityType)
    {
        if ($this->serializer && $this->serializer != API_SERIALIZER_JSON) {
            $entityType = null;
        }
        $resource = new Item($data, $transformer, $entityType);
        return $this->manager->createData($resource)->toArray();
    }