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Learning Redux

By : Bugl

5 (3)

Buy this Book

Learning Redux

5 (3)

By: Bugl

Buy this Book

Overview of this book

The book starts with a short introduction to the principles and the ecosystem of Redux, then moves on to show how to implement the basic elements of Redux and put them together. Afterward, you are going to learn how to integrate Redux with other frameworks, such as React and Angular. Along the way, you are going to develop a blog application. To practice developing growing applications with Redux, we are going to start from nothing and keep adding features to our application throughout the book. You are going to learn how to integrate and use Redux DevTools to debug applications, and access external APIs with Redux. You are also going to get acquainted with writing tests for all elements of a Redux application. Furthermore, we are going to cover important concepts in web development, such as routing, user authentication, and communication with a backend server After explaining how to use Redux and how powerful its ecosystem can be, the book teaches you how to make your own abstractions on top of Redux, such as higher-order reducers and middleware. By the end of the book, you are going to be able to develop and maintain Redux applications with ease. In addition to learning about Redux, you are going be familiar with its ecosystem, and learn a lot about JavaScript itself, including best practices and patterns.

Preface

About the book

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

Why Redux?

Defining the application state

Defining actions

Tying state and actions together

Redux' three fundamental principles

Introduction to the Redux ecosystem

Summary

Implementing the Elements of Redux

The Redux cycle

Running code examples

Implementing actions and action creators

Implementing reducers

The store – combining actions and reducers

Summary

Combining Redux with React

Why React?

Setting up React

First steps with React

Connecting React to Redux

Building an application with Redux and React

Summary

Combining Redux with Angular

Redux with Angular 1

Redux with Angular 2+

Summary

Debugging a Redux Application

Integrating Redux DevTools

Setting up hot reloading

Using Redux DevTools

Summary

Interfacing with APIs

Setting up the backend

Handling asynchronous operations with Redux

Pulling data from an API into the Redux store

Sending notifications to an API via Redux

Summary

User Authentication

JSON Web Tokens (JWT)

Implementing token authentication

redux-auth

Summary

Testing

Setting up Jest

Using Jest

Testing Redux

Testing React components

Summary

Routing

Creating a simple router

Using a routing library

Using react-router-redux

Summary

Rendering on the Server

Why render on the server?

Preparing for server-side rendering

Implementing server-side rendering

Performance improvements

Summary

Solving Generic Problems with Higher-Order Functions

Making functions pure

Creating higher-order functions

Solving generic problems with Redux

Implementing generic undo/redo Redux

Summary

Extending the Redux Store via Middleware

What is middleware?

Using the Redux store middleware

Final tips and tricks

Summary

Customer Reviews

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Implementing token authentication

After learning why JWT make sense, how tokens look and work, and how to use JWT to authenticate users, we will manually implement token authentication in our Redux application.

The backend server code is provided by this book. You can find the template code for this chapter in chapter7_1.zip (this contains the server and our React/Redux application from the previous chapters).

Unpack the zip file, change into the directory, and run npm install to install the dependencies.

For the sake of simplicity, the JWT tokens that the server generates do not expire, and the secret is set to secret (so that we can use the debugger on jwt.io to generate valid tokens for testing purposes).

You can change the secret by setting the JWT_SECRET environment variable when starting the server.

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