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
About the Author
About the Reviewer
Customer Feedback

Authenticating Google's users through Google OpenID Connect

To allow users to be authenticated by third-party applications, it's required that the Identity Provider you are considering to integrate with is trustworthy. Google is a great example of an Identity Provider that meets such a requirement. In addition, Google conforms to the OpenID Connect specification and is OpenID certified, as explained in the Google Identity Platform guide, which is available at

This recipe shows you how to use Google OpenID Connect and Spring Security OAuth 2.0 to authenticate users who have an account on Google. As described by OpenID Connect, users share their identity information instead of their resources, as allowed by OAuth 2.0.


This recipe is based on the solution provided by Eugen Parachiv at

Getting ready

To run this recipe, you will need Java 8, Maven, Spring Web, and Spring Security...