AbortController: Stop Fetch Requests You No Longer Need
An AbortController is a kill switch for network requests. Use it to cancel a `fetch` when a user navigates away. The main footgun is not handling the `AbortError` that `fetch` throws, which can look like a real network failure.
An AbortController is a remote kill switch for network requests. You create a controller, pass its `signal` property to a `fetch` call, and keep the controller instance. When you want to cancel, like when a user navigates away or types a new search query, you call `controller.abort()`. This prevents wasted bandwidth and avoids race conditions where stale data updates the UI. The biggest footgun is forgetting to handle the `AbortError` that `fetch` throws; your `catch` block must distinguish it from a genuine network error.
Read the original → developer.mozilla.org
- #react-native
- #javascript
- #fetch
- #async
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