OAuth 2.0

sequenceDiagram autonumber participant U as 👤 User participant C as 📱 Client App participant AS as 🔐 Auth Server participant RS as 🗄️ Resource Server U->>C: 1. Click "Login/Connect" C->>AS: 2. Redirect to Login (client_id, scope) U->>AS: 3. Authenticate & Authorize AS->>C: 4. Redirect with Auth Code C->>AS: 5. Exchange Code + Secret for Token AS->>C: 6. Return Access Token C->>RS: 7. Request Data with Token RS->>C: 8. Return Protected Resource 🎉