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React Debounced Search with Fake API

By FrontendAtlas Editorial · Updated Jan 30, 2026

Challenge summary

Build a React debounced search input with fake API calls. Use useEffect + setTimeout cleanup to cancel pending debounce work, guard stale responses from updating state, and manage loading, error, and empty states for realistic UX.

What you'll practice

  • Render a search input as the main UI.
  • Call a provided fake API function that returns a filtered list of users.
  • Show a loading message while the debounced request is in-flight.
  • Show a friendly error message when the fake API rejects.
  • Show result rows with user name and email on success.

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Free related practice

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