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Stop 09 · Connecting Frontend & BackendTopics · 2/8

API Integration with Fetch/Axios

Part of the Full Stack Developer Roadmap

In short

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

How to learn this

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

More topics at this stop

CORSReact Query / TanStack QueryEnvironment Variables & API URLsLoading & Error StatesOptimistic UIFull-Stack Data FlowFile Uploads End-to-End

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