What does a 529 overloaded error mean and how do you handle it?

Retry Code Pattern

Here is how to catch error code 529 and repeat the request in Node.js:

async function runWithExponentialBackoff(apiCall, maxRetries = 5) {
  let delay = 1000;
  for (let i = 0; i < maxRetries; i++) {
    try {
      return await apiCall();
    } catch (error) {
      if (error.status === 529 && i < maxRetries - 1) {
        const jitter = Math.random() * 200;
        console.warn(`529 Overload detected. Retrying in ${delay + jitter}ms...`);
        await new Promise(res => setTimeout(res, delay + jitter));
        delay *= 2;
      } else {
        throw error;
      }
    }
  }
}