Spring Cloud OAuth2 authentication is one of the most popular authentication techniques which is used to secure applications. It is a long-term, secure, and user-friendly authentication method for production-grade applications. It authenticate users based on tokens and checks API calls by validating the user’s access token. Spring Cloud OAuth2 authentication will help you to control the access of app users, revoke the access tokens when necessary, improve security of the app, and identify the users when used together with third party identity providers.
In this doc, we will explain how to get started with Spring Cloud OAuth2 authentication.
Prerequisites
Before getting started with Spring Cloud OAuth2 authentication, make sure you have the following prerequisites:
- IDE: Any IDE such as Eclipse, IntelliJ IDEA, etc.
- Server: Java 11, Spring Boot 2.x
- Libraries: Spring Cloud OAuth2, Spring Security OAuth2
Step 1 - Create Spring Boot App
The first step is to create a Spring Boot project in the IDE. Use maven or gradle build tool to create a new project. Use the correct groupId and artifactId for the project.
Step 2 - Configure the Authentication Manager
Create a configuration class, and extend it from the WebSecurityConfigurerAdapter class. You will need to configure an AuthenticationManagerBuilder object with an OAuth2 client and user details. Then create an AuthorizationServerEndpointsConfigurer bean and register an AuthorizationServerSecurityConfigurer bean.
Step 3 - Enable OAuth2 Authentication
After configuring the Authentication Manager, now you need to enable the OAuth2 authentication. Create an interface called WebSecurityConfigurer and configure a global method level security using the @EnableGlobalMethodSecurity annotation. Configure a method to handle all the requests that enter the application.
Step 4 - Create the Spring Cloud Token Store
The Spring Cloud Token Store is used to manage and store authentication and authorization tokens. Create a token store in the configuration and inject it into the Authorization Server Endpoints Configurer bean.
Step 5 - Test the OAuth2 Authentication
At this step, your application is configured with OAuth2 authentication. Test the authorization process by running the application and making a request to the application.
FAQs
Q. What is Spring Cloud OAuth2 authentication?
A. Spring Cloud OAuth2 authentication is one of the most popular authentication techniques which is used to secure applications. It is a long-term, secure, and user-friendly authentication method for production-grade applications. It authenticate users based on tokens and checks API calls by validating the user’s access token.
Q. What are the prerequisites to get started with Spring Cloud OAuth2 authentication?
A. Before getting started with Spring Cloud OAuth2 authentication, make sure you have the following prerequisites:
- IDE: Any IDE such as Eclipse, IntelliJ IDEA, etc.
- Server: Java 11, Spring Boot 2.x
- Libraries: Spring Cloud OAuth2, Spring Security OAuth2
Q. What is the role of the AuthenticationManagerBuilder object?
A. The AuthenticationManagerBuilder object's role is to configure an OAuth2 Client and User Details.
Q. How can I enable OAuth2 authentication?
A. To enable OAuth2 authentication, create an interface called WebSecurityConfigurer and configure a global method level security using the @EnableGlobalMethodSecurity annotation. Configure a method to handle all the requests that enter the application.
Q. How can I test the OAuth2 authentication?
A. To test the OAuth2 authentication, run the application and make a request to the application.
Summary
In this doc, we have discussed how to get started with Spring Cloud OAuth2 authentication. We discussed the prerequisites, steps to make the authentication process, and questions related to OAuth2 authentication. Spring Cloud OAuth2 authentication is one of the most popular authentication techniques which is used to secure applications. It is a long-term, secure, and user-friendly authentication method for production-grade applications. It authenticate users based on tokens and checks API calls by validating the user’s access token.