Comprehensive guide to authentication methods: sessions, JWT, OAuth 2.0, OIDC, and SAML. Authentication vs Authorization Authentication (AuthN): Who are you? Verifying identity Credentials: username/password, tokens, biometrics Result: User identity established Authorization (AuthZ): What can you do? Verifying …

Authentication and authorization middleware patterns for Go web applications. Includes JWT, OAuth2, Auth0, and CORS implementations. Use Case Protect API endpoints with authentication Implement role-based access control Integrate with OAuth providers (Auth0, Google, GitHub) Handle CORS for frontend applications JWT …