The Koro API — E-commerce Backend built with NestJS + PostgreSQL

Hey everyone 👋

I just released **The Koro API**, a modular e-commerce backend built with **NestJS** and **PostgreSQL**.

It includes:

- JWT auth with roles (user/admin)

- CRUD for products, categories, and orders

- Transactional stock updates

- DTO validation and guards

- OpenAPI docs with Swagger + Scalar

Repo: [github.com/nicolasdelrosario/the-koro-api](https://github.com/nicolasdelrosario/the-koro-api)

API Docs (Scalar): [the-koro-api.nicolasdelrosario.com/docsl](https://the-koro-api.nicolasdelrosario.com/docs)

I’d love to get some feedback from other backend devs and NestJS users — especially around architecture and validation best practices.