Aug 2024/Backend/course
GG Forum API
A forum API with threads, comments, and nested replies quickly becomes fragile when transport logic and data access are mixed together. I built GG Forum API to treat business rules as a first-class concern. The goal was to prove that a strict architectural separation is the only way to keep complex domain behavior maintainable over time.
I implemented a Clean Architecture approach using Node.js and Hapi.js backed by PostgreSQL. The entire backend is separated into distinct layers for domains, applications, interfaces, and infrastructure. By forcing data to move through explicit repository contracts, the core business logic remains completely isolated from the database and the HTTP transport.
The biggest takeaway is that predictable growth requires rigid boundaries. Because the use cases are decoupled from the infrastructure, writing comprehensive unit and integration tests became trivial. This project reinforced that a robust backend is not defined by its endpoint count but by its ability to safely handle change.