use Symfony\Component\HttpFoundation\Request;
use Webauthn\Bundle\Repository\PublicKeyCredentialUserEntityRepository;
use Webauthn\Bundle\Security\Guesser\UserEntityGuesser;
use Webauthn\PublicKeyCredentialUserEntity;
final class FromQueryParameterGuesser implements UserEntityGuesser
public function __construct(
private PublicKeyCredentialUserEntityRepository $userEntityRepository
public function findUserEntity(Request $request): PublicKeyCredentialUserEntity
$userHandle = $request->query->get('user_id');
Assertion::string($userHandle, 'User entity not found. Invalid user ID');
$user = $this->userEntityRepository->findOneByUserHandle($userHandle);
Assertion::isInstanceOf($user, PublicKeyCredentialUserEntity::class, 'User entity not found.');