#Reduxjs toolkit configurestore

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Integrating Redux Toolkit into Your React TypeScript App: A Comprehensive Guide

It is essential to keep up with the latest tools and technologies in the field of front-end web development. One such tool that has gained popularity among developers is Redux Toolkit. Redux Toolkit is a package that simplifies the process of managing state in React applications, especially when using TypeScript.

In this blog, we'll guide you through the process of integrating the Redux Toolkit into your React TypeScript app, ensuring a smoother and more efficient development experience.

What is Redux Toolkit?

Redux Toolkit is a package that provides a set of tools and best practices for managing state in Redux applications. It includes utilities such as configureStore, which simplifies the setup of a Redux store, as well as createSlice, which allows you to define Redux slices with less boilerplate code. Redux Toolkit also includes middleware such as redux-thunk, which enables you to write asynchronous logic in your Redux reducers.

Benefits for Developers and Users:

Simplified State Management:

Redux Toolkit simplifies state management, ensuring a more predictable application state for a smoother user experience.

Improved Code Organization:

Encourages a structured approach to code organization, enhancing readability and maintainability.

Enhanced Debugging:

Includes Redux DevTools for real-time inspection and debugging of state changes.

Streamlined Asynchronous Actions:

Simplifies handling of asynchronous actions like API calls, improving performance.

Scalability:

Designed to scale with the application's complexity, maintaining performance and maintainability.

Type Safety:

Provides TypeScript integration for type safety, reducing runtime errors, and improving code quality.

Step 1: Installing Redux Toolkit

The first step in integrating the Redux Toolkit into your React TypeScript app is to install the package. You can use npm or yarn for this:

npm install @reduxjs/toolkit

or

yarn add @reduxjs/toolkit

Step 2: Setting Up the Redux Store

Next, you'll need to set up the Redux store in your application. Create a new file called store.ts and define your Redux store using the ‘configureStore’ function from Redux Toolkit:

import { configureStore } from '@reduxjs/toolkit';

import rootReducer from './reducers';

const store = configureStore({

  reducer: rootReducer,

});

export default store;

Step 3: Creating Redux Slices

Redux Toolkit allows you to define Redux slices using the createSlice function. A slice is a collection of Redux reducers and actions that are related to a specific feature or part of your application. Here's an example of how you can create a slice for managing a user's authentication state:

import { createSlice } from '@reduxjs/toolkit';

const authSlice = createSlice({

  name: 'auth',

  initialState: {

    isAuthenticated: false,

    user: null,

  },

  reducers: {

    login(state, action) {

      state.isAuthenticated = true;

      state.user = action.payload;

    },

    logout(state) {

      state.isAuthenticated = false;

      state.user = null;

    },

  },

});

export const { login, logout } = authSlice.actions;

export default authSlice.reducer;

Step 4: Connecting Redux to Your React Components

Finally, you'll need to connect your Redux store to your React components using the Provider component from the react-redux package. Use the Provider component to wrap your root component and pass your Redux store as a prop:

import React from 'react';

import ReactDOM from 'react-dom';

import { Provider } from 'react-redux';

import store from './store';

import App from './App';

ReactDOM.render(

  <Provider store={store}>

    <App />

  </Provider>,

  document.getElementById('root')

);

Integrating the Redux Toolkit into your React TypeScript app can help you manage state more effectively and improve the overall development experience. By following the steps outlined in this guide, you'll be able to seamlessly integrate Redux Toolkit into your app and take advantage of its powerful features. Remember to stay updated with the latest developments in front-end web development, as new tools and technologies are constantly emerging.

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Reduxjs toolkit configurestore

#Reduxjs toolkit configurestore how to#

env configures port for this Redux Toolkit CRUD App.Ībout Redux elements that we’re gonna use: – TutorialService has methods for sending HTTP requests to the Apis. – http-common.js initializes axios with HTTP base Url and headers. – There are 3 pages: TutorialsList, Tutorial, AddTutorial. – App is the container that has Router & navbar. – package.json contains main modules: react, react-router-dom, react-redux, redux-toolkit, axios & bootstrap. The reducer for a specific section of the Redux app state is called a “slice reducer”. Reducer will take the action and return new state. Other React Components will work with the Store via calling async Thunks using React Redux Hooks API. We’re gonna create Redux store for storing tutorials data. This diagram shows how Redux elements work in our React Application: Redux-Toolkit CRUD with Hooks and Rest API example – TutorialDataService uses axios to make HTTP requests and receive responses.

AddTutorial has form for submission new Tutorial.

Tutorial has form for editing Tutorial’s details based on :id.

TutorialsList gets and displays Tutorials.

– We have 3 pages that call async Thunks (that will take care of dispatching the right actions) which uses TutorialDataService to interact with Rest API. It has navbar that links to routes paths. – The App component is a container with React Router. Now look at the React components that we’re gonna implement: – Django & MongoDB Redux-Toolkit CRUD with React Hooks Component Diagram You can find step by step to build a Server like this in one of these posts: We will build a React Redux Tutorial Application with Rest API calls in that:įind all Tutorials which title contains keyword Redux-Toolkit example with CRUD Application React Hooks + Redux: CRUD example with Axios and Rest API – React Hooks + Firestore example: CRUD app – React Hooks + Firebase Realtime Database: CRUD App – React Form Validation with Hooks example – React Table example: CRUD App | react-table 7 – React Hooks File Upload example with Axios & Progress Bar – React Hooks (without Redux) CRUD example with Axios and Rest API – React CRUD example with Axios and Web API (using React Components) – React Hooks + Redux: JWT Authentication example – React Hooks: JWT Authentication (without Redux) example

#Reduxjs toolkit configurestore how to#

In this tutorial, I will show you how to build a Redux Toolkit CRUD example using React Hooks working with Rest API, display and modify data with Router, Axios & Bootstrap.

[t-baba]

Using Redux in a React Native App

Redux is a library for state management that ensures that the application logic is well-organized and that apps work as expected. Redux makes it easy to understand your application's code regarding when, where, why, and how the state of the application is updated.

Redux is made up of the following key parts:

actions

reducers

store

dispatch

selector

In this post, we'll look at each part of the Redux architecture in turn.

Actions and Action Creators

An action is a plain JavaScript object that has a type field and an optional payload. It can also be thought of to as an event that describes something that has happened.

const addTaskAction = { type: 'task/taskAdded' ,payload: 'Laundry' }

Action creators are just functions that create and return action objects.

const addTask = text => { return { type: 'task/taskAdded'', payload: text } }

Reducers

A reducer is also a function that receives the current state and an action object, updates the state if necessary, and returns the new state. A reducer is not allowed to modify the existing state; instead, it copies the existing state and changes the copied values. In other words, the reducer should be a pure function.

Here is an example. 

const initialState = { value: 0 } function counterReducer(state = initialState, action) { // Check to see if the reducer cares about this action if (action.type === 'counter/increment') { // If so, make a copy of `state` return { ...state, // and update the copy with the new value value: state.value + 1 } } // otherwise return the existing state unchanged return state }

Store

A store is an object that stores the current state of a Redux application. You create the initial state of the store by passing a reducer to the configureStore functIon.

import { configureStore } from '@reduxjs/toolkit' const store = configureStore({ reducer: counterReducer }) console.log(store.getState())

To get the current state of a store, use the getState() function as above.

Dispatch and Selectors

dispatch() is a Redux store method and is used to update the state by passing an action object. Here, we create a task/taskAdded action with the addTask() action creator, then pass it to the dispatch() metdho.

store.dispatch(addTask('pick up laundry'))

Selectors are used for reading data from a store.

Tutorial on Using Redux With React Native

In this React Native Redux tutorial, you will develop an app that allows a user to choose from a given set of subjects. The app will contain two screens and you will also learn how to navigate between them using react-navigation. 

Create a New React App

Create a new project using Expo CLI tool

expo init ReduxApp

Currently, you have a single component  App.js displaying a welcome message. 

Create two new components in Home.js and Subjects.js The home component will be the first screen a user sees, and the subjects component will display all the subjects in our app. Copy the code from App.js and add it to Home.js and Subjects.js.

Modify Home.js and Subjects.js to use Home and Subjects instead of the App class.

//Home.js import React from 'react'; import { StyleSheet, Text, View } from 'react-native'; class Home extends React.Component { render() { //... } } // ... export default Home;

Subects.js should look similar.

Navigating Between Screens

Currently, there is no way to navigate between the two screens. The stack navigator allows your app to transition between screens where each new screen is placed on top of a stack.

First, install @react-navigation/native and its dependencies.

npm install @react-navigation/native

For an Expo managed project, install the following.

expo install react-native-gesture-handler react-native-reanimated react-native-screens react-native-safe-area-context @react-native-community/masked-view

Go to App.js and import react-native-gesture-handlerat the top. You also need to add  NavigationContainer and createStackNavigator to App.js. Then, to add navigation capabilities, wrap the components inside the App class in a NavigationContainer component. 

import { NavigationContainer } from '@react-navigation/native'; import { createStackNavigator } from '@react-navigation/stack'; const Stack = createStackNavigator(); // ... class App extends React.Component { render() { return ( <NavigationContainer> <Stack.Navigator> <Stack.Screen name="Home" component={Home} /> <Stack.Screen name="Subjects" component={Subjects} /> </Stack.Navigator> </NavigationContainer> ); } } // ...

Now the navigator is aware of your screens, and you can provide links for transitioning between screens.

Redux in a React Native App

As we mentioned earlier, Redux is a state management tool, and you will use it to manage all the states of the application. Our application is a subject selector where the user chooses the subjects from a predefined list.

First, install the Redux packages.

npm install redux react-redux

A Redux app follows the following conditions:

The state completely describes the condition of the app at any point in time.

The UI is rendered based on the state of the app. 

For example, when a user clicks a button, the state is updated, and the UI renders the change based on the state.

Create a Reducer

The reducer will be responsible for keeping the state of the subjects at every point in time.

Create the file SubjectsReducer.js at the root level and add the following code.

import { combineReducers } from 'redux'; const INITIAL_STATE = { current: [], all_subjects: [ 'Literature', 'Speech', 'Writing', 'Algebra', 'Geometry', 'Statistics', 'Chemisrty', 'Biology', 'Physics', 'Economics', 'Geography', 'History', ], }; const subjectsReducer = (state = INITIAL_STATE, action) => { switch (action.type) { default: return state } }; export default combineReducers({ subjects: subjectsReducer });

In this file, you create an INITIAL_STATE variable with all the curriculum subjects and export the subjects reducer as a property called subjects. So far, the subjects reducer doesn't respond to any actions—the state can't change.

Create an Action

An action has a type and an optional payload. In this case, the type will be SELECT_SUBJECT, and the payload will be the array index of the subjects to be selected.

Create the SubjectsActions.js file at the root level and add the following code.

export const addSubject = subjectsIndex => ( { type: 'SELECT_SUBJECT', payload: subjectsIndex, } );

Now, we'll update the reducer to respond to this action.

// ... const subjectsReducer = (state = INITIAL_STATE, action) => { switch (action.type) { case 'SELECT_SUBJECT': // copy the state const { current, all_subjects,} = state; //remove a subject from the all_subjects array const addedSubject = all_subjects.splice(action.payload, 1); // put subject in current array current.push(addedSubject); // update the redux state to reflect the change const newState = { current, all_subjects }; //return new state return newState; default: return state } }; // ...

Add the Reducer to the App

Now, open App.js, and create a new store for the app using the createStore() function. We also make that store available to the components in our app by wrapping them in the <Provider> component. This will ensure that the store's state can be accessed by all of the child components.

import 'react-native-gesture-handler'; import React from 'react'; import { Provider } from 'react-redux'; import { createStore } from 'redux'; import { StyleSheet } from 'react-native'; import { NavigationContainer } from '@react-navigation/native'; import { createStackNavigator } from '@react-navigation/stack'; import subjectsReducer from './SubjectsReducer'; import Home from './Home'; import Subjects from './Subjects'; // ... . rest of the code const store = createStore(subjectsReducer); class App extends React.Component { // ... render() { return ( <Provider store={store}> <NavigationContainer> //.. rest of the code </NavigationContainer> </Provider> ) } }

Add Redux to the Components

Now let's see how to make state data available to components with the connect() function. To use connect(), we need to create a mapStateToProps function, which will maps the state from the store to the props in the two components.

Open Home.js, map the state, and render the values for the current subjects (which will be found in this.props.subjects.current). Also, add a button to navigate to the Subjects component.

import React from 'react'; import { connect } from 'react-redux'; import { StyleSheet, Text, View, Button } from 'react-native'; class Home extends React.Component { render() { return ( <View style={styles.container}> <Text>You have { this.props.all_subjects.current.length } subjects.</Text> <Button title="Select more subjects" onPress={() => this.props.navigation.navigate('Subjects') } /> </View> ); } } const mapStateToProps = (state) => { const { subjects } = state return { subjects } }; export default connect(mapStateToProps)(Home);

Similarly, we'll use connect in the Subjects.js  file to map the state to the component properties. 

import React from 'react'; import { connect } from 'react-redux'; import { StyleSheet, Text, View, Button } from 'react-native'; class Subjects extends React.Component { render() { return ( <View style={styles.container}> <Text>My Subjects!</Text> /> </View> ); } } //... const mapStateToProps = (state) => { const { subjects } = state return { subjects } }; export default connect(mapStateToProps)(Subjects);

We'll also add the code to display all the subjects in the Subjects component and a button to navigate to the Home screen. You will also add a button that will add the addSubject action to Subject.js. Here's what the final render() method in Subject.js should look like this:

class Subject extends React.Component { render() { return ( <View style={styles.container}> <Text>Select Subjects Below!</Text> { this.props.subjects.all_subjects.map((subject, index) => ( <Button key={ subject } title={ `Add ${ subject }` } onPress={() => this.props.addSubject(index) } /> )) } <Button title="Back to home" onPress={() => this.props.navigation.navigate('Home') } /> </View> ); } }

The final app should look like this.

Conclusion

Redux is a valuable tool, but it is only useful when used in the right way. Some of the situations where Redux might be helpful include code that is being worked on by many people or applications that contain large amounts of application state.

In this tutorial, you learned how to set up a React Native app using Redux.

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If you have trouble deciding which React Native template on CodeCanyon is right for you, this article should help: 

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