Backends for Frontends (BFF)

Create a tailored backend/API layer per client type such as web, mobile, or TV.

design

Detailed Description

Different clients often need different payload shapes, latency budgets, and workflows.

A BFF keeps client-specific aggregation out of core domain services.

Visual Diagram

Per-Client Backends
  📱 Mobile  →  [BFF-Mobile]  → lean payload
  🌐 Web     →  [BFF-Web]     → rich payload
  📺 TV      →  [BFF-TV]      → media-optimized
                    ↓ all call same microservices
                [UserSvc][OrderSvc][ProductSvc]

Tradeoffs

Pros

Optimized per client, less frontend orchestration

Cons

Possible duplication across BFFs

Examples: Netflix, SoundCloud BFF architecture