API Integration with Fetch/Axios

Summary

Actually wiring your React components up to real backend endpoints instead of mock data — the moment your app becomes genuinely full-stack.

• 1Replace a component's mock data with a real `fetch` or Axios call to your backend.
• 2Set up an Axios instance with a base URL so you don't repeat it everywhere.
• 3Handle the request lifecycle — loading, success, and error — for every API call.