Timeout handling with AbortController

Snippet

Timeout handling with AbortController

In Node.js, AbortController is the standard way to cancel asynchronous operations like fetch requests. By passing the controller's signal to the fetch call, you can programmatically stop the request if it takes too long.

snippet.js
javascript
const controller = new AbortController();
const timeoutId = setTimeout(() => controller.abort(), 5000);
 
try {
  const response = await fetch('https://api.example.com/data', {
    signal: controller.signal
  });
  const data = await response.json();
} catch (error) {
  if (error.name === 'AbortError') {
    console.error('Request timed out');
  }
} finally {
  clearTimeout(timeoutId);
}

nodejs

Breakdown

const controller = new AbortController();

Creates a new instance of AbortController to manage the cancellation signal.

signal: controller.signal

Links the fetch request to the controller so it can be aborted.

controller.abort()

Triggers the cancellation, causing the fetch promise to reject with an AbortError.

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Timeout handling with AbortController

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