FiveLab / Resource

        if (array_key_exists('before_normalization', $context)) {

            $beforeNormalization = $context['before_normalization'];

            if (!is_callable($beforeNormalization)) {

                throw new \InvalidArgumentException(sprintf(

                    'Invalid callable for before normalization. "%s" given.',

                    is_object($beforeNormalization) ? get_class($beforeNormalization) : gettype($beforeNormalization)

                ));

            }

            $beforeNormalization($object, $format, $context);

        }

        if (array_key_exists('after_normalization', $context)) {

            $afterNormalization = $context['after_normalization'];

            if (!is_callable($afterNormalization)) {

                throw new \InvalidArgumentException(sprintf(

                    'Invalid callable for after normalization. "%s" given.',

                    is_object($afterNormalization) ? get_class($afterNormalization) : gettype($afterNormalization)

                ));

            }

            $data = $afterNormalization($data, $object, $format, $context);

     */

    public function normalize($object, $format = null, array $context = [])

    {

        if (!$object instanceof ResourceCollection) {

            throw new \InvalidArgumentException(sprintf(

                'The normalizer support only "%s" but "%s" given.',

                ResourceCollection::class,

                is_object($object) ? get_class($object) : gettype($object)

            ));

        }

        $data = [];

        $links = [];