Async & Promisesmedium

How do you create and use custom hooks for data fetching in React?

Explain the process of building and utilizing custom hooks to handle data fetching in React applications.

#react#hooks#async

Answer

  1. Define a Hook: Create a function that starts with 'use' (e.g., useFetch).
  2. State Management: Use useState to manage loading, error, and data states within the hook.
  3. Effect Hook: Use useEffect to perform the data fetching when the component mounts or when dependencies change.
  4. Return Values: Return loading state, error, and fetched data from the hook.
  5. Using the Hook: Import and call the custom hook within a functional component for clean data-fetching logic.

Practise more Async & Promises questions →