How do I use React Query in my application?

How do I use React Query in my application?

React Query is a powerful library for managing server state in React applications. You can start by installing it using npm or yarn.

What are the main features of React Query?

Some key features include automatic caching, background data synchronization, and easy data fetching with hooks.

Can you show me a simple example of fetching data?

Sure! You can use the useQuery hook to fetch data. Here's a basic example:

import { useQuery } from 'react-query';

const fetchData = async () => {
  const response = await fetch('https://api.example.com/data');
  return response.json();
};

const MyComponent = () => {
  const { data, error, isLoading } = useQuery('dataKey', fetchData);

  if (isLoading) return <div>Loading...</div>;
  if (error) return <div>Error: {error.message}</div>;
  return <div>Data: {JSON.stringify(data)}</div>;
};

This will fetch data from the API and handle loading and error states.

What if I need to mutate data?

You can use the useMutation hook for that. It allows you to perform create, update, or delete operations on your data.