Missing Abort Controller

Fetch/axios calls without timeout or AbortController

infoPerformancemissing-abort-controller

Why this matters

A fetch without a timeout hangs indefinitely if the remote server is slow or down. Your API route blocks, the connection pool fills up, and your entire server becomes unresponsive.

✗ Bad

const res = await fetch("https://api.example.com/data");
const data = await res.json();

✓ Good

const controller = new AbortController();
const timeout = setTimeout(
  () => controller.abort(), 5000
);

try {
  const res = await fetch("https://api.example.com/data", {
    signal: controller.signal,
  });
  const data = await res.json();
} finally {
  clearTimeout(timeout);
}

How to fix

Add an AbortController with a timeout to every external fetch call. 5-10 seconds is reasonable for most APIs.

All rules