Enforcing Timeouts with AbortSignal.timeout

Snippet

Enforcing Timeouts with AbortSignal.timeout

Modern Node.js versions provide a shorthand for creating time-based abort signals. This prevents async operations from hanging indefinitely and consuming resources.

snippet.js
javascript
async function fetchData(url) {
  try {
    // Automatically aborts after 5000ms
    const signal = AbortSignal.timeout(5000);
    const response = await fetch(url, { signal });
    return await response.json();
  } catch (err) {
    if (err.name === 'AbortError') {
      console.error('Request timed out');
    }
  }
}

nodejs

Breakdown

AbortSignal.timeout(5000)

Creates a signal that automatically triggers an abort event after 5 seconds.

fetch(url, { signal })

Passes the signal to the fetch API to link the request lifecycle to the timeout.

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Enforcing Timeouts with AbortSignal.timeout

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