I'm on v5 The migration guide will help you migrate incrementally and keep shipping along the way. NPM bash npm i tanstack/react-query or pnpm add tanstack/react-query or yarn add tanstack/react-query React Query is compatible with React v16.8+ and works with ReactDOM and React Native. React Router is a lightweight, fully-featured routing library for the React JavaScript library. const BrowserRouter require('react-router-dom').BrowserRouter const Route require('react-router-dom').Route const Link require('react-router-dom'). It will quickly introduce you to the primary features of React Router: from configuring routes, to loading and mutating data, to pending and optimistic UI.
Here I will get error, useState is not defined. You can install React Query via NPM, or a good ol'