auth-and-authorization-patterns

Secure OAuth2 and OIDC login flows with PKCE involve issuing tokens and validating their lifecycles. This pattern provides protected resource access by enforcing correct authorization code exchanges and session management.

Enforcing RBAC and ABAC access control in web applications requires applying permission checks during user authentication. This method provides secure resource protection by validating user roles and attributes before granting access to protected endpoints.

Managing JWT validation and refresh token lifecycles securely involves validating token signatures and automating token refresh processes. This ensures continuous session validity and prevents unauthorized access from expired or compromised tokens.

Adding MFA to existing authentication workflows is supported through dedicated implementation guidance. This integration provides an additional security layer by requiring secondary verification factors during the user login process.

Use OAuth2 over standard session management for API authentication when handling third-party access or decentralized services. OAuth2 provides scoped token-based delegation, which is more scalable across multiple APIs than stateful server sessions.