Errores y límites de frecuencia

{
  "detail": [
    {
      "loc": ["body", "scan_session_id"],
      "msg": "field required",
      "type": "value_error.missing"
    }
  ]
}

{
  "detail": "site_id not found or inactive"
}

async function sendEvent(payload) {
  const response = await fetch('https://track.scanova.io/server-events', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
      'X-API-Key': process.env.SCANOVA_API_KEY,
    },
    body: JSON.stringify(payload),
  });

  if (response.ok) return await response.json();

  const error = await response.json().catch(() => null);

  if (response.status === 429) {
    const retryAfter = parseInt(response.headers.get('Retry-After') ?? '60', 10);
    throw new RetryableError(`Rate limited — retry after ${retryAfter}s`, retryAfter);
  }

  if (response.status >= 500) {
    throw new RetryableError(`Server error ${response.status}`);
  }

  // 400, 401, 403, 422 — do not retry, fix the request
  throw new PermanentError(`Request failed ${response.status}: ${JSON.stringify(error)}`);
}