How to Use React Redux-Toolkit: A Comprehensive Example

How to Use React Redux-Toolkit: A Comprehensive Example

Here's a simple example of using the React Redux Toolkit to manage the state in a React application:

Let's assume we want to create a simple counter application.

  1. First, make sure you have a React project set up.

  2. Install Redux Toolkit:

     npm install @reduxjs/toolkit react-redux
  3. Create a Redux store with Redux Toolkit:

    Create a file named store.js:

     import { configureStore, createSlice } from '@reduxjs/toolkit';
     // Define a slice with initial state and reducer
     const counterSlice = createSlice({
       name: 'counter',
       initialState: {
         value: 0,
       reducers: {
         increment: (state) => {
           state.value += 1;
         decrement: (state) => {
           state.value -= 1;
     // Extract the actions and reducer from the slice
     export const { increment, decrement } = counterSlice.actions;
     export const counterReducer = counterSlice.reducer;
     // Create the Redux store
     export const store = configureStore({
       reducer: {
         counter: counterReducer,
  4. Create a React component to display the counter:

    Create a file named Counter.js:

     import React from 'react';
     import { useSelector, useDispatch } from 'react-redux';
     import { increment, decrement } from './store'; // Import actions
     const Counter = () => {
       const count = useSelector((state) => state.counter.value);
       const dispatch = useDispatch();
       return (
           <h1>Counter: {count}</h1>
           <button onClick={() => dispatch(increment())}>Increment</button>
           <button onClick={() => dispatch(decrement())}>Decrement</button>
     export default Counter;
  5. Update your App.js to include the Counter component:

     import React from 'react';
     import { Provider } from 'react-redux';
     import Counter from './Counter';
     import { store } from './store'; // Import the Redux store
     const App = () => {
       return (
         <Provider store={store}>
             <h1>React Redux Toolkit Counter App</h1>
             <Counter />
     export default App;

When you run your React application, you should see a counter that goes up and down when you click the buttons. This example shows how to use Redux Toolkit's createSlice function to set up a part of the state with reducers and actions. It also explains how to use useSelector and useDispatch hooks to work with the Redux store in React components.

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