Backend BFF Pattern

Purpose

Design specialized Backend for Frontend (BFF) services that compose and transform backend APIs for each client type (web, mobile, IoT, third-party), reducing over-fetching and client complexity.

Agent Protocol

Trigger

Exact user phrases: "BFF", "Backend for Frontend", "API gateway", "gateway specialization", "frontend API", "mobile API", "web API", "API composition", "aggregation service", "frontend gateway", "BFF pattern".

Input Context

• Client types consuming the API (web, iOS, Android, third-party).
• Backend microservices architecture.
• Latency and data shape requirements per client.

Output Artifact

BFF architecture design or implementation snippet. No file unless requested.