Frontend engineers often treat API calls as fire-and-forget. In System Design, data fetching is a strategic layer.
The System Design Question: If a user edits a post on the details page, how does the feed page update? Do we re-fetch, or do we update the cache optimistically?
Never expose your 50 internal microservices directly to the frontend. Namaste Frontend System Design
Instead, use the BFF (Backend for Frontend) pattern. Create an orchestration layer that aggregates data specifically for your UI needs.
❌ Bad: Frontend calls /products/1, /reviews/123, /recommendations/456 (3 round trips = slow).
✅ Good: Frontend calls /api/v1/product-page/123. The BFF fetches all three in parallel and returns one big JSON. Frontend engineers often treat API calls as fire-and-forget
Namaste Tip: Use GraphQL or TRPC for flexible queries, but always implement Persisted Queries for production to avoid over-fetching and improve caching.
Namaste Frontend System Design course, created by Akshay Saini The System Design Question: If a user edits
and Chirag Goel, is a specialized program designed to transition developers from "Zero to Hero" in architecting large-scale frontend applications. Unlike standard coding courses, it focuses on senior-level engineering skills such as high-level architecture, scalability, and interview preparation for top-tier companies. Core Curriculum Highlights
The course is divided into modular sections that cover both foundational and advanced architectural concepts: NamasteDev How to ace frontend interviews with system design skills 6 Aug 2025 —
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