Building RESTful Web Services with Spring 5（Second Edition）

coverpage

Title Page

Dedication

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Contributors

About the authors

About the reviewer

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Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

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Conventions used

Get in touch

Reviews

A Few Basics

REST – a basic understanding

Uniform interface

Client and server

Stateless

Cacheable

Layered system

Code on demand (COD)

More on REST

Imperative and Reactive programming

Reactive Streams

Benefits of Reactive programming

Reactive programming in Java and Spring 5

Our RESTful web service architecture

Summary

Building RESTful Web Services in Spring 5 with Maven

Apache Maven

Creating a project with Maven

Viewing a POM file after creating a project

POM file structure

Understanding POM dependencies

Adding Log4j 2.9.1 to POM dependency

Dependency trees

Spring Boot

Developing RESTful web services

Creating a project base

Working with your favorite IDE

Summary

Flux and Mono (Reactor Support) in Spring

Benefits of Reactive programming

Reactive Core and Streams

Back pressures and Reactive Streams

WebFlux

Basic REST API

Flux

Mono

User class with Reactive – REST

Summary

CRUD Operations in Spring REST

CRUD operations in Spring REST

HTTP methods

Reactive server initialization

Sample values in the repository

getAllUsers – mapping

getAllUsers – implementation in the handler and repository

Testing the endpoint – getAllUsers

getUser – implementation in the handler and repository

Testing the endpoint – getUser

createUser – implementation in the handler and repository

Testing the endpoint – createUser

updateUser – implementation in the handler and repository

Testing the endpoint – updateUser

deleteUser – implementation in the handler and repository

Testing the endpoint – deleteUser

Summary

CRUD Operations in Plain REST (Without Reactive) and File Upload

Mapping CRUD operations to HTTP methods

Creating resources

CRUD operation in Spring 5 (without Reactive)

getAllUsers – implementation

getUser – implementation

createUser – implementation

updateUser – implementation

deleteUser – implementation

File uploads – REST API

Testing the file upload

Summary

Spring Security and JWT (JSON Web Token)

Spring Security

Authentication and authorization

JSON Web Token (JWT)

JWT dependency

Creating a JWT token

Generating a token

Getting a subject from a JWT token

Getting a subject from a token

Summary

Testing RESTful Web Services

JUnit

MockMvc

Testing a single user