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

Using the fetch API

With the fetch API, you can make web requests. The idea of the fetch API is similar to traditional XMLHttpRequest, but the fetch API also supports promises, which makes it more straightforward to use. You don't have to install any libraries if you are using fetch.

The fetch API provides a fetch() method that has one mandatory argument, which is the path of the resource you are calling. In the case of a web request, it will be the URL of the service. For a simple GET method call, which returns a JSON response, the syntax is the following. The fetch() method returns a promise that contains the response. You can use the json() method to parse the JSON body from the response:

fetch('http://someapi.com')
.then(response => response.json())
.then(result => console.log(result));
.catch(error => console.error(error))

To use another HTTP method,...