Federated Identity & Multi-Tenant API Flow

This pattern demonstrates:

• Identity broker + external IdP federation
• BFF-based session management
• Short-lived service JWTs for API access
• Downstream token acquisition for external services

When to Use

• Multi-tenant SaaS platforms
• Federated authentication across partner IdPs
• Systems requiring separation between user session and API authorization

Key Tradeoffs

• Increased complexity in token management
• Dependency on identity broker availability
• Need for careful session and token lifecycle control