Securing Spring Boot Applications with OAuth 2.0

Securing modern web applications and microservices requires robust, industry-standard authentication and authorization. Understanding how to correctly implement OAuth 2.0 with Spring Security is essential for building production-ready Java applications. This text-based course guides you through the foundational concepts of OAuth 2.0 and Spring Security, moving step-by-step from core definitions to practical implementations. You will learn how to configure secure Resource Servers, manage modern authorization flows, and integrate identity providers to protect your APIs. What you'll learn: - Understand core OAuth 2.0 terminology, roles, grant types, and security best practices. - Configure Spring Security to act as an OAuth 2.0 Resource Server using JWTs. - Implement secure authorization flows including Authorization Code with PKCE and Client Credentials. - Set up and integrate Keycloak as an external Identity Provider for user authentication. - Apply scope-based and role-based access control to secure specific API endpoints. - Configure Spring Cloud API Gateway to route and secure downstream microservices. - Integrate social login with major identity providers using Spring Security. You will start by mastering foundational security concepts and OAuth 2.0 architecture. From there, you will read through clear, step-by-step written explanations and analyze production-ready code snippets to build secure configurations, integrate Keycloak, and implement role-based access controls. This course is designed for beginner to intermediate Java and Spring Boot developers who want to learn application security. No prior experience with OAuth 2.0 or Spring Security is required. Start building secure, modern Java applications today.