user_producer/vendor/symfony/http-foundation/RequestMatcher/IsJsonRequestMatcher.php

<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpFoundation\RequestMatcher;

use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestMatcherInterface;

/**
 * Checks the Request content is valid JSON.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class IsJsonRequestMatcher implements RequestMatcherInterface
{
    public function matches(Request $request): bool
    {
        return json_validate($request->getContent());
    }
}