auth-implementation-patterns

Implement JWT authentication by issuing short-lived access tokens alongside long-lived refresh tokens. You use the refresh token to securely obtain new access tokens without requiring the user to re-enter credentials.

Role-Based Access Control (RBAC) restricts system access by assigning specific permissions to defined user roles rather than individual users. You implement permission-based checks and resource ownership validation to ensure users only access authorized data.

OAuth2 and OpenID Connect work by delegating authentication to an external provider, allowing users to log in using existing credentials from another service. You implement this to enable secure third-party access without handling raw passwords directly.

Security best practices require hashing passwords using robust cryptographic algorithms before storage to protect user data. You also implement rate limiting to restrict excessive authentication attempts, preventing automated brute force attacks against your application endpoints.

You need session management and JWT for different authentication contexts. Session-based authentication stores user state server-side, whereas JWT provides stateless authentication tokens, making it ideal for scalable APIs and distributed microservices architectures.