Book Image

Full Stack Development with Spring Boot 3 and React - Fourth Edition

By : Juha Hinkula
5 (1)
Book Image

Full Stack Development with Spring Boot 3 and React - Fourth Edition

5 (1)
By: Juha Hinkula

Overview of this book

If you’re an existing Java developer who wants to go full stack or pick up another frontend framework, this book is your concise introduction to React. In this three-part build-along, you’ll create a robust Spring Boot backend, a React frontend, and then deploy them together. This new edition is updated to Spring Boot 3 and includes expanded content on security and testing. For the first time ever, it also covers React development with the in-demand TypeScript. You’ll explore the elements that go into creating a REST API and testing, securing, and deploying your applications. You’ll learn about custom Hooks, third-party components, and MUI. By the end of this book, you'll be able to build a full stack application using the latest tools and modern best practices.
Table of Contents (23 chapters)
1
Part I: Backend Programming with Spring Boot
8
Part II: Frontend Programming with React
14
Part III: Full Stack Development
21
Other Books You May Enjoy
22
Index

React hooks

Hooks were introduced in React version 16.8. Hooks allow you to use state and some other React features in functional components. Before hooks, you had to write class components if states or complex component logic were needed.

There are certain important rules for using hooks in React. You should always call hooks at the top level in your React function component. You shouldn’t call hooks inside loops, conditional statements, or nested functions. Hook names begin with the word use, followed by the purpose they serve.

useState

We are already familiar with the useState hook function that is used to declare states. Let’s look at one more example of using the useState hook. We will create an example counter that contains a button, and when it is pressed, the counter is increased by 1, as illustrated in the following screenshot:

Figure 8.6: Counter component

  1. First, we create a Counter component and declare a state called count...