Book Image

OAuth 2.0 Cookbook

By : Adolfo Eloy Nascimento
Book Image

OAuth 2.0 Cookbook

By: Adolfo Eloy Nascimento

Overview of this book

OAuth 2.0 is a standard protocol for authorization and focuses on client development simplicity while providing specific authorization flows for web applications, desktop applications, mobile phones, and so on. This book also provides useful recipes for solving real-life problems using Spring Security and creating Android applications. The book starts by presenting you how to interact with some public OAuth 2.0 protected APIs such as Facebook, LinkedIn and Google. You will also be able to implement your own OAuth 2.0 provider with Spring Security OAuth2. Next, the book will cover practical scenarios regarding some important OAuth 2.0 profiles such as Dynamic Client Registration, Token Introspection and how to revoke issued access tokens. You will then be introduced to the usage of JWT, OpenID Connect, and how to safely implement native mobile OAuth 2.0 Clients. By the end of this book, you will be able to ensure that both the server and client are protected against common vulnerabilities.
Table of Contents (16 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

Creating an OAuth 2.0 client using the Authorization Code grant type


This recipe presents you with how to create a client application that interacts with the OAuth 2.0 Provider by using the Authorization Code grant type.

Getting ready

To run this recipe, make sure you have an OAuth 2.0 Provider running on your machine. I recommend you to use the project auth-code-server presented in the first recipe from Chapter 2, Implementing Your Own OAuth 2.0 Provider which is available at GitHub through https://github.com/PacktPublishing/OAuth-2.0-Cookbook/tree/master/Chapter02/auth-code-server. To have an OAuth 2.0 Provider running, you will also need Java 8, Maven, and your preferred IDE.

How to do it...

The next steps will present with you how to create the client application that uses the Authorization Code grant type to retrieve an access token and to interact with the user's profile endpoint:

  1. Create the project using Spring Initializr. Go to https://start.spring.io/ and fill out the form using the...