Description
Introduced in Symfony 5.2. See documentation1
Syntax
# config/packages/rate_limiter.yaml
framework:
rate_limiter:
anonymous_api:
strategy: fixed_window
limit: 60
interval: '60 minutes'// src/Controller/ApiController.php
namespace App\Controller;
use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
use Symfony\Component\HttpKernel\Exception\TooManyRequestsHttpException;
use Symfony\Component\RateLimiter\Limiter;
class ApiController extends AbstractController
{
// the variable name must be: "rate limiter name" + "limiter" suffix
public function index(Limiter $anonymousApiLimiter)
{
// create a limiter based on the client's IP address
// (you can also use a username/email, an API key, etc.)
$limiter = $anonymousApiLimiter->create($request->getClientIp());
// try to consume a resource; if it's accepted, serve the request
// otherwise, return a 429 (Too Many Requests) error
if (false === $limiter->consume()->isAccepted()) {
throw new TooManyRequestsHttpException();
}
// ...
}
// ...
}