Rate limits

HTTP/1.1 429 Too Many Requests
Retry-After: 12
X-RateLimit-Limit: 120
X-RateLimit-Remaining: 0
X-RateLimit-Reset: 12

{
  "error": {
    "code": "RATE_LIMITED",
    "message": "Too many requests. Retry after 12 seconds",
    "status": 429
  },
  "meta": { "requestId": "..." }
}

async function fetchWithRetry(url, options, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    const res = await fetch(url, options);

    if (res.status === 429) {
      const retryAfter = parseInt(res.headers.get('Retry-After') || '5');
      await new Promise(r => setTimeout(r, retryAfter * 1000));
      continue;
    }

    return res;
  }
  throw new Error('Rate limit exceeded after retries');
}