
Mastering Spring Security 7 with Spring Boot 4 and Java 21 – Part 8.2: Custom OAuth2UserService and Persisting Users in the Database
After a user successfully authenticates with Google, Spring Security retrieves the user's profile information.
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After a user successfully authenticates with Google, Spring Security retrieves the user's profile information.

Google acts as the Authorization Server, while your Spring Boot application acts as the OAuth2 Client.

Spring Security provides built-in support for OAuth2 and OpenID Connect (OIDC), making it straightforward to integrate third-party identity providers into Spring Boot applications.

In this article, we will build a complete JWT-based authentication system using Spring Security 7, Spring Boot 4, and Java 21.

In this article, we will learn how to implement method-level security in Spring Security 7 using Spring Boot 4 and Java 21.

In this article, we will explore role-based and authority-based authorization in Spring Security 7, understand their differences, and implement production-ready access control for REST APIs.
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