Spring Security 6 | How to Create a Login System with Spring Data JPA and JWTs [NEW 2023]
Spring Security can be a massive rabbit hole when you get started. This is exactly what happened to me when I started researching how to add encryption to the backend of my Twitter clone here on YouTube. I poured hours and hours of watching tutorials and trying to figure out how to tweak one tutorial to do this, or another tutorial that was outdated to do that. Finally, I stumbled upon some non-outdated tutorials, but they still lacked exactly what I needed and I still had to link multiple different tutorial videos together to get to where I am now. If you have been in my place before, or if you are at where I was right now this is the video for you.
In this video we are going to sit down from the start of an application and build out an entire authenticated backend server with login and register features connected to a database. We are also going to implement the generation of JWT's so you can have a stateless backend, and we will use OAuth2Resource server to verify that the JWT's sent back are valid, and then authorize requests to specific routes based on the users roles. We will do all of this from scratch so you can understand where we started and how we got to the finish line.
I highly recommend that you watch through the entire video for context, however, here is the link to the project code:
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~~~ Background Music Used In My Video ~~~
Astroblk - Nothing Really matters that much to me anymore
Aviscerall - Sanctuary
Cøzybøy - Please Don't Drown
Astroblk - explorer
Knwln Ryan - Can't Replace You
NetNavi - How Can You Tell
Astroblk - Vancouver
Aviscerall - Lullabyes
Cøzybøy - Deep In Snow
Astroblk - Courage
Aviscerall - Coffee Shop
Cøzybøy - I'll Do Anything
Astroblk - Pay Up _____
Aviscerall - Chillin'
Cøzybøy - I Feel Okay Today
Astroblk - fleids
Aviscerall - Progress
Cøzybøy - What Do You know About Love
Astroblk - Geneva
Knwln Ryan - Jupiter
Astroblk - Ginger Spice
Aviscerall - Clockin' Out
Knwln Ryan - Waterfalls
Aviscerall - Feelings
Astroblk - Soul in Seoul
NetNavi - To A Song
Astroblk - Sunrise
Aviscerall - Onett
~~~ Video Content ~~~
0:00:00 - Introduction
0:03:05 - Prerequisites
0:04:34 - Project Diagram
0:06:05 - Project Creation
0:12:01 - application.properties setup
0:17:04 - Creating the UserController
0:19:56 - Creating the AdminController
0:21:32 - Testing User and Admin Endpoints
0:22:37 - Installing Spring Security
0:24:43 - Utilizing the default Spring Security password
0:25:57 - Unlocking the API
0:28:45 - Creating the Role model
0:32:26 - Creating the ApplicationUser model
0:38:32 - Creating the UserService
0:42:20 - Configuring basic authentication
0:47:38 - Creating the Repository layer
0:51:20 - Loading Roles and Admin User
0:55:13 - Using the UserRepository in the UserService
0:58:05 - Creating the AuthenticationService and registerUser method
1:04:12 - Creating the AuthenticationController and registerUser method
1:09:22 - Configuring all traffic to AuthenticationController
1:11:53 - Creating the KeyGenerator utility class
1:14:37 - Creating the RSAKeyProperties class
1:16:21 - Installing OAuthResourceServer
1:17:29 - Configuring Spring Security to use OAuthResourceServer
1:22:05 - Creating the TokenService
1:26:54 - Creating the LoginResponseDTO class
1:28:37 - Creating the loginUser method in AuthenticationService
1:32:52 - Creating the loginUser method in the AuthenticationController
1:34:11 - Testing user login
1:36:23 - Configuring role based authorization
1:42:44 - Testing role based authorization
1:43:52 - Outro
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