Spring Security 6 Database Authentication: From Login Request to Verified User

Most Spring Security tutorials hand you an in-memory user and call it "authentication." That's not production. In this video, we wire Spring Security 6 to a REAL database — and trace every step from the raw login request to a fully verified, authenticated user. 🔐 What you'll learn: → How AuthenticationManager delegates to DaoAuthenticationProvider → How UserDetailsService loads your user from the database → How PasswordEncoder validates credentials securely → The exact filter chain steps before authentication is confirmed → How the Authentication object is built and stored in the SecurityContext → Common production mistakes and how to avoid them This is NOT an in-memory user store tutorial. This is real database authentication — the way it works in production Spring Security 6 applications. 📘 Resources Mentioned: 🧑‍💻 Source Code: https://github.com/hello-iftekhar/Spring-JPA-Authentication.git 🔐 *Secure 3 Spring Boot endpoints in 30 minutes (free guide):* https://learnwithiftekhar.kit.com/secure-your-api-in-30-minutes 👉 Master programming by recreating your favorite technologies: https://app.codecrafters.io/join?via=learnwithiftekhar 🙊 Here are the tools and resources I use in my videos: 🎶 Background sound: https://share.epidemicsound.com/ia954g 🌐 Secure your connection with NordVPN: https://nordvpn.sjv.io/o4zYan IDE I use for coding * IntelliJ Idea Ultimate * VsCode * Sublime *Note:* Some of the links in this description are affiliate links, and I may earn a small commission if you make a purchase through them. Thank you for your support. 🤚 In case you want to contact me: ❌ My LinkedIn profile: https://www.linkedin.com/in/hossain-md-iftekhar/ ❌ Github: https://github.com/learnwithiftekhar ❌ My Fiverr profile: https://www.fiverr.com/ifte_hsn I also provide service on Upwork. In case you are interested: ❌ https://www.upwork.com/freelancers/~0145597fbf5e701492 Contents: 0:00 Intro 0:18 What are we going to build 1:37 Create a new spring boot project 4:23 Connect to the MySQL database from Intelij IDE using the database tool 5:58 Configuring Spring Boot for database connection 11:03: Creating Model package 12:15: Creating User Model 14:43: Create Role Model 16:05: Run the project 16:31 Summery of created database tables 17:41 Creating Repository 19:12 Creating Security Config 20:05 Creating UserDetailsService 20:44 fingByUsername method in UserRepository 21:25 Implementing UserDetail interface in User model 21:48 implementing getAuthorities() Method 23:19 return user from loadUserByUsername method 23:57 Inject UserDetailsService in security Config 25:35 Seeding database 28:43 Password Hashing 29:48 Create controller 31:00 Create an "admin" endpoint in the controller 31:20 Create a "staff" endpoint in the controller 31:46 Restricting access to admin endpoint 32:00 Restricting access to staff endpoint 32:40 Adding staff user in the database 33:13 Run the project and see the final result #SpringSecurity6 #JPAAuthentication #Tutorial #StepByStep #Authentication #Security #JavaSpring #YouTubeTutorial #SoftwareDevelopment #WebDevelopment #JavaProgramming #ProgrammingTutorial #CodeTutorial #JavaDevelopment #AuthenticationTutorial #SpringBoot #JavaSecurity #JavaWeb #SpringFramework #SpringSecurity