Spring Security Hands-On (Part 2) | Custom Authentication & Login Flow

📌 Topics covered in this video: ✔️ Default Spring Security behavior ✔️ Generated default password & login page ✔️ Overriding UserDetailsService ✔️ Providing custom credentials to access controllers ✔️ Overriding AuthenticationManager ✔️ Creating custom AuthenticationProvider ✔️ Understanding SecurityFilterChain ✔️ Permitting specific URLs (public & secured endpoints) ✔️ Implementing a custom login endpoint ✔️ CSRF explained and configured ✔️ How authentication flow changes with custom providers All concepts are explained using **hands-on coding**, not slides. 🛠️ Tech & Tools used: - Spring Boot 3 - Spring Security 6 - Java - IntelliJ IDEA 📚 This video is part of a **Spring Security + Full-Stack SaaS Series**, where we are building a production-ready application step by step before adding: - JWT authentication - Role-based authorization - Custom security filters - Multi-tenant security architecture 👨‍💻 Who should watch this video? - Beginners struggling with Spring Security - Java developers confused by authentication setup - Backend engineers building secure APIs - Developers preparing for Spring Security interviews 🔔 Subscribe to the channel to follow the complete journey. 💬 Comment below if you want timestamps or a deeper explanation of any topic. #springsecurity #springboot #java #backenddevelopment #authentication #websecurity #javadeveloper #springboot3 #programmingtutorial #securityfilterchain #csrf #jwt