How to Build SPAs With React Redux Toolkit

Single Page Applications (SPAs) have gained immense popularity due to their seamless user experience and improved performance. Building SPAs with React and Redux Toolkit can streamline your development process. This guide will walk you through the essential steps to create efficient SPAs using these powerful tools.

Understanding SPAs, React, and Redux Toolkit

SPAs are web applications that load a single HTML page and dynamically update content as the user interacts with the app. React, a JavaScript library for building user interfaces, simplifies the creation of SPAs through its component-based architecture. Redux Toolkit, the official toolset for Redux, optimizes state management in your applications, making it easier to manage global state.

Setting Up Your React Application

To get started, you need to create a React application. You can do this using Create React App, which sets up everything you need with just one command:

npx create-react-app my-spa

Once your project is set up, navigate into your project directory:

cd my-spa

Installing Redux Toolkit

Next, you’ll need to install Redux Toolkit and React-Redux, which allows React components to interact with the Redux store:

npm install @reduxjs/toolkit react-redux

Creating the Redux Store

In your project, create a new folder called store. Inside this folder, create a file named store.js. This is where you will configure your Redux store. Here’s a simple setup:

import { configureStore } from '@reduxjs/toolkit';
const store = configureStore({
  reducer: {
    // Your reducers will go here
  },
});
export default store;

Defining Slices

Redux Toolkit uses "slices" to manage state more easily. Create a folder named slices and then create a new file called exampleSlice.js for managing a part of your application's state:

import { createSlice } from '@reduxjs/toolkit';
const initialState = {
  value: 0,
};
const exampleSlice = createSlice({
  name: 'example',
  initialState,
  reducers: {
    increment: (state) => {
      state.value += 1;
    },
    decrement: (state) => {
      state.value -= 1;
    },
  },
});
export const { increment, decrement } = exampleSlice.actions;
export default exampleSlice.reducer;

Now, import this slice in your store.js:

import exampleReducer from './slices/exampleSlice';
const store = configureStore({
  reducer: {
    example: exampleReducer,
  },
});

Connecting React and Redux

In your index.js, wrap your application with the Provider from React-Redux and pass the store:

import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
import { Provider } from 'react-redux';
import store from './store/store';
ReactDOM.render(
  
    
  ,
  document.getElementById('root')
);

Building Components and Using Redux State

You can now create functional components and utilize the state from Redux. For example, create a new component called Counter.js:

import React from 'react';
import { useSelector, useDispatch } from 'react-redux';
import { increment, decrement } from './slices/exampleSlice';
const Counter = () => {
  const count = useSelector((state) => state.example.value);
  const dispatch = useDispatch();
return (
    
      {count}
      
      
    
  );
};
export default Counter;

Include this Counter component in your main App.js file:

import React from 'react';
import Counter from './Counter';
const App = () => {
  return (

How to Build SPAs With React Redux Toolkit