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

Using TypeScript features with React

TypeScript is a valuable addition to your React projects, especially when they grow in complexity. In this section, we will learn how we can get prop and state type validation in our React components and detect potential errors early in development.

State and props

In React, you have to define the type of component props. We have already learned that component props are JavaScript objects, so we can use type or interface to define the prop type.

Let’s look at one example where a component receives a name (string) and age (number) prop:

function HelloComponent({ name, age }) {
  return(
    <>
      Hello {name}, you are {age} years old!
    </>
  );
}
export default HelloComponent;

Now, we can render our HelloComponent and pass props to it:

// imports...
function App() {
  return(
    <HelloComponent name="Mary" age={12} />
  )
}
export default App;

If we use TypeScript, we can first...