photogallery-auth

OAuth and JWT authentication with Entity Framework Core is implemented by configuring provider-agnostic token validation middleware, a JwtTokenService for issuance, and EF Core user mappings for persistence. This setup enables multi-provider external logins and secure API access.

Role-based access control with JWT claims works by assigning users to internal roles like Admin, User, or Visitor, then embedding those roles as claims in the JWT. The backend validates the token to enforce fine-grained, claims-based authorization permissions.

You can bypass JWT authentication during development by using the configuration-based DISABLE_AUTH bypass pattern. This allows testing frontend and backend workflows without requiring valid OAuth logins or active token validation.

The best way to support multiple OAuth providers in a .NET backend is using an extensible factory pattern. This integrates Google, Facebook, and Microsoft logins while maintaining provider-agnostic token validators and centralized JWT token management.

Time-limited access codes for visitor authentication are set up by generating temporary tokens mapped to the Visitor role. The JWT token service manages these specific token lifecycles, allowing restricted, expiring access for non-registered users.

Admin users are seeded during JWT and RBAC system initialization through configuration-based admin seeding. By defining default admin credentials and roles in the configuration, EF Core automatically persists the initial admin user on startup.