feat: add Retry-After header if needed

src/Controller/MeController.php

@@ -3,12 +3,30 @@
 namespace App\Controller;
 
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
-use Symfony\Component\Security\Core\User\UserInterface;
+use Symfony\Component\HttpFoundation\JsonResponse;
+use Symfony\Component\HttpFoundation\Response;
+use Symfony\Component\RateLimiter\RateLimiterFactory;
+use Symfony\Component\Serializer\SerializerInterface;
 
 class MeController extends AbstractController
 {
-    public function __invoke(): UserInterface
+    public function __construct(
+        private readonly SerializerInterface $serializer,
+        private readonly RateLimiterFactory $rdapRequestsLimiter,
+    ) {
+    }
+
+    public function __invoke(): Response
     {
-        return $this->getUser();
+        $user = $this->getUser();
+        $limiter = $this->rdapRequestsLimiter->create($user->getUserIdentifier());
+        $limit = $limiter->consume(0);
+
+        $data = $this->serializer->serialize($user, 'json', ['groups' => 'user:list']);
+
+        return new JsonResponse($data, Response::HTTP_OK, [
+            'eu.domainwatchdog.ratelimiter.rdap.remaining' => $limit->getRemainingTokens(),
+            'eu.domainwatchdog.ratelimiter.rdap.limit' => $limit->getLimit(),
+        ], true);
     }
 }