HTTP/1.1 429 Too Many Requests
X-RateLimit-Limit: 5
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 1713454200
Retry-After: 47
Content-Type: application/json

{
  "timestamp": "2026-04-18T14:00:00Z",
  "status": 429,
  "error": "Too Many Requests",
  "message": "Trop de tentatives. Réessayez dans 47 secondes.",
  "path": "/v1/api/auth/login"
}

./mvnw spring-boot:run -Dspring-boot.run.profiles=dev,rate-limit-test

async function fetchWithBackoff(url, opts, maxRetries = 5) {
  for (let i = 0; i <= maxRetries; i++) {
    const res = await fetch(url, opts);
    if (res.status !== 429) return res;
    const retryAfter = parseInt(res.headers.get("Retry-After") || "1", 10);
    const wait = Math.min(retryAfter * 1000, 2 ** i * 1000);
    await new Promise(r => setTimeout(r, wait));
  }
  throw new Error("Rate limit persistant");
}