Handle Rate Limits

X-RateLimit-Limit: 600
X-RateLimit-Remaining: 590
X-RateLimit-Reset: 1780000000
X-Quota-Limit: 50000
X-Quota-Remaining: 48750

async function requestWithBackoff(url, apiKey) {
  let delay = 1000;

  for (let attempt = 0; attempt < 5; attempt += 1) {
    const response = await fetch(url, {
      headers: {
        Authorization: `Bearer ${apiKey}`,
      },
    });

    if (response.status !== 429) {
      return response;
    }

    const reset = response.headers.get("X-RateLimit-Reset");
    const waitMs = reset ? Math.max(Number(reset) * 1000 - Date.now(), delay) : delay;
    await new Promise((resolve) => setTimeout(resolve, waitMs));
    delay *= 2;
  }

  throw new Error("Rate limit retry attempts exhausted");
}