---
title: "Comment by Laura Ashaley on \"Designing the BFF Contract: Request Aggregation & Client-Specific Shaping\" | Hashnode"
description: "This is exactly where most backend complexity should be handled today. A well-designed BFF (Backend-for-Frontend) contract isn’t just about aggregating requests"
url: "https://hashnode.com/posts/designing-the-bff-contract-request-aggregation-client-specific-shaping/69d653fd707c1ce768364362/comment/69d9f2c7c8e5007ddb661b86"
---

[Discussion](https://hashnode.com/posts/designing-the-bff-contract-request-aggregation-client-specific-shaping/69d653fd707c1ce768364362)

Comment [Designing the BFF Contract: Request Aggregation & Client-Specific Shaping](https://hashnode.com/posts/designing-the-bff-contract-request-aggregation-client-specific-shaping/69d653fd707c1ce768364362)

[Laura Ashaley](https://hashnode.com/@laura-ashaley)

[Apr 11](https://hashnode.com/posts/designing-the-bff-contract-request-aggregation-client-specific-shaping/69d653fd707c1ce768364362/comment/69d9f2c7c8e5007ddb661b86)

This is exactly where most backend complexity should be handled today. A well-designed BFF (Backend-for-Frontend) contract isn’t just about aggregating requests—it’s about intelligently shaping data per client so each frontend gets only what it needs, nothing more. That means reducing over-fetching, decoupling UI changes from core services, and optimizing latency by parallelizing downstream calls. The real challenge is keeping the contract stable while allowing client-specific flexibility without turning the BFF into a monolith. When done right, it becomes a thin but powerful orchestration layer that dramatically improves frontend velocity and system scalability.