ReactJS
How can I integrate React Query with Next.js for data fetching
Integrating React Query with Next.js for data fetching provides a powerful combination for managing server state in your application. Here's how you can set it up and use it effectively:
Setup
Install React Query:
npm install @tanstack/react-query
Create a QueryClient and wrap your application with QueryClientProvider in _app.js or _app.tsx:
import { QueryClient, QueryClientProvider } from '@tanstack/react-query';import { useState } from 'react';function MyApp({ Component, pageProps }) {const [queryClient] = useState(() => new QueryClient());return (<QueryClientProvider client={queryClient}><Component {...pageProps} /></QueryClientProvider>);}export default MyApp;Client-Side Data Fetching
For client-side data fetching, use the useQuery hook:
import { useQuery } from '@tanstack/react-query';function ExampleComponent() {const { data, isLoading, error } = useQuery(['uniqueKey'], async () => {const response = await fetch('/api/data');return response.json();});if (isLoading) return <div>Loading...</div>;if (error) return <div>Error: {error.message}</div>;return <div>{JSON.stringify(data)}</div>;}Server-Side Rendering (SSR)
For SSR, use dehydrate and Hydrate:
import { dehydrate, QueryClient, useQuery } from '@tanstack/react-query';import { Hydrate } from '@tanstack/react-query/hydration';export async function getServerSideProps() {const queryClient = new QueryClient();await queryClient.prefetchQuery(['key'], async () => {const res = await fetch('https://api.example.com/data');return res.json();});return {props: {dehydratedState: dehydrate(queryClient),},};}function Page({ dehydratedState }) {return (<Hydrate state={dehydratedState}><ExampleComponent /></Hydrate>);}export default Page;Benefits of Using React Query with Next.js
- Automatic Caching: React Query caches query results, reducing unnecessary network requests.
- Real-time Updates: It provides easy-to-use hooks for real-time data fetching and updates.
- Server-Side Rendering Support: React Query integrates well with Next.js's SSR capabilities.
- Simplified State Management: It eliminates the need for manual state management for API responses.
- Performance Optimization: React Query's caching mechanism improves application performance.
- Devtools: React Query comes with built-in devtools for debugging and inspecting queries.
By leveraging React Query in your Next.js application, you can significantly simplify data fetching logic, improve performance, and enhance the overall developer experience
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