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

Props and state

Props and state are the input data for rendering a component. The component is re-rendered when the props or state change.

Props

Props are inputs to components, and they are a mechanism to pass data from a parent component to its child component. Props are JavaScript objects, so they can contain multiple key-value pairs.

Props are immutable, so a component cannot change its props. Props are received from the parent component. A component can access props through the props object that is passed to the function component as a parameter. For example, let’s take a look at the following component:

function Hello() {
  return <h1>Hello John</h1>;
}

The component just renders a static message, and it is not reusable. Instead of using a hardcoded name, we can pass a name to the Hello component by using props, like this:

function Hello(props) {
  return <h1>Hello {props.user}</h1>;
}

The parent component can send...