Migrate from Basic Spring Security to JWT Authentication

[YuJun Oh]

Description

We need to migrate our current authentication mechanism from basic Spring Security to JWT (JSON Web Token) based authentication. This will enhance the security and scalability of our application by allowing stateless authentication.

Tasks

1. Add JWT dependencies:
   • Add the necessary JWT libraries to the pom.xml or build.gradle file.
2. Create JWT utility class:
   • Implement methods to generate, parse, and validate JWT tokens.
3. Update Security Configuration:
   • Modify the existing security configuration to include JWT filters.
   • Remove the basic authentication mechanism.
4. Implement JWT Filters:
   • Create filters for JWT authentication and authorization.
5. Modify Login Endpoint:
   • Update the login endpoint to generate and return JWT tokens upon successful authentication.
6. Update UserDetailsService:
   • Ensure UserDetailsService integrates properly with JWT authentication.
7. Add Token Provider:
   • Create a token provider service to handle token creation and validation logic.
8. Update Application Properties:
   • Add JWT related configurations (e.g., secret key, token validity period) to application.properties or application.yml.
9. Testing:
   • Write unit and integration tests to ensure the JWT authentication works correctly.
10. Documentation:

• Update the documentation to reflect the new authentication mechanism.
• Include instructions on how to obtain and use JWT tokens.