How to Configure OAuth2 Authentication With Spring-Security-Oauth2

The blog post details the integration of OAuth 2.0 authentication with Spring Security using the spring-security-oauth2 library, focusing on configurations beyond in-memory and JDBC data sources. It introduces a tutorial divided into three parts: authenticating users, configuring a token store, and setting up dynamic clients while using Couchbase with Spring Data for demonstration. The tutorial covers implementing a Resource Server and a CustomUserDetailsService to bridge data sources with Spring Security OAuth, emphasizing the importance of using a UserDetailsService interface for user authentication. It discusses configuring a SecurityConfig class to manage authentication, token storage, and CORS settings, and introduces an Authorization Server for managing client credentials and token validity. The author suggests using Couchbase's Key-Value Store for improved performance and invites readers to reach out for further questions.