[FIXED] Circular reference problem with decorated service

Issue

As the documentation suggests I wrote this service to add the uuid to the normalized object:

<?php
namespace App\Serializer;

use InvalidArgumentException;
use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
use Symfony\Component\Serializer\SerializerAwareInterface;
use Symfony\Component\Serializer\SerializerInterface;

final class ApiNormalizer implements NormalizerInterface, DenormalizerInterface, SerializerAwareInterface
{
    private DenormalizerInterface|NormalizerInterface $decorated;

    public function __construct(NormalizerInterface $decorated)
    {
        if (!$decorated instanceof DenormalizerInterface) {
            throw new InvalidArgumentException(sprintf('The decorated normalizer must implement the %s.', DenormalizerInterface::class));
        }

        $this->decorated = $decorated;
    }

    public function supportsNormalization($data, $format = null)
    {
        return $this->decorated->supportsNormalization($data, $format);
    }

    public function normalize($object, $format = null, array $context = [])
    {
        $data = $this->decorated->normalize($object, $format, $context);
        if(method_exists($object, 'getUuid') && is_array($data)){
            $data['uuid'] = $object->getUuid();
        }
        return $data;
    }

    /**
     * @param mixed $data
     * @param string $type
     * @param null $format
     *
     * @return bool
     */
    public function supportsDenormalization($data, $type, $format = null)
    {
        return $this->decorated->supportsDenormalization($data, $type, $format);
    }

    public function denormalize($data, $type, $format = null, array $context = [])
    {
        return $this->decorated->denormalize($data, $type, $format, $context);
    }

    public function setSerializer(SerializerInterface $serializer)
    {
        if($this->decorated instanceof SerializerAwareInterface) {
            $this->decorated->setSerializer($serializer);
        }
    }
}

And services.yaml

App\Serializer\ApiNormalizer:
    # By default .inner is passed as argument
    decorates: 'api_platform.jsonld.normalizer.item'

But suddenly (until yesterday everything was fine) it starts to give me this error when I run composer or cache clear

In CheckCircularReferencesPass.php line 67: Circular reference detected for service "App\Serializer\ApiNormalizer", path: "App\Serializer\ApiNormalizer -> serializer -> App\Serializer\ApiNormalizer".

Solution

This is an issue with Symfony Dependency Injection component on version 5.3.7.

https://github.com/symfony/symfony/issues/42792

This is likely going to be resolved tomorrow or the day after.

On the meantime, just add this to your composer.json:

"conflict": {
    "symfony/dependency-injection": "5.3.7"
},

This way you can keep the rest of the dependencies updated, and it will just exclude DI 5.3.7 in favour of 5.3.6.

When 5.3.8 is released, you'll be able to update directly.

Answered By - yivi