Book Image

Hands-On Full Stack Development with Spring Boot 2 and React - Second Edition

By : Juha Hinkula
Book Image

Hands-On Full Stack Development with Spring Boot 2 and React - Second Edition

By: Juha Hinkula

Overview of this book

React Hooks have changed the way React components are coded. They enable you to write components in a more intuitive way without using classes, which makes your code easier to read and maintain. Building on from the previous edition, this book is updated with React Hooks and the latest changes introduced in create-react-app and Spring Boot 2.1. This book starts with a brief introduction to Spring Boot. You’ll understand how to use dependency injection and work with the data access layer of Spring using Hibernate as the ORM tool. You’ll then learn how to build your own RESTful API endpoints for web applications. As you advance, the book introduces you to other Spring components, such as Spring Security to help you secure the backend. Moving on, you’ll explore React and its app development environment and components for building your frontend. Finally, you’ll create a Docker container for your application by implementing the best practices that underpin professional full stack web development. By the end of this book, you’ll be equipped with all the knowledge you need to build modern full stack applications with Spring Boot for the backend and React for the frontend.
Table of Contents (22 chapters)
Free Chapter
1
Section 1: Backend Programming with Spring Boot
7
Section 2: Frontend Programming with React
12
Section 3: Full Stack Development

Stateless components

The React stateless component (a functional component) is just a pure JavaScript function that takes props as an argument and returns a react element. The following example shows how a stateless component is used by using the arrow function:

import React from 'react';

const HeaderText = (props) => {
return (
<h1>
{props.text}
</h1>
)
}

export default HeaderText;

Now, when you use functions to define a React component, you don't have to use the this keyword. A stateless component defined using a function doesn't have life cycle methods. For example, in the previous HeaderText example, you can see that there is no render() method.

Our HeaderText example component is called a pure component. A component is said to be pure if its return value is consistently the same given the same input values. React has introduced React...