Next.js · NestJS · MongoDB

Frontend

Next.js

React framework, App Router
Static export here — no Node server, nginx serves it
TypeScript end to end

Backend

NestJS

Node + TypeScript, modules / controllers / DI
ValidationPipe + class-validator → 400
Mongoose ODM; duplicate key → 409

Database

MongoDB

Document store, JSON-like BSON
ObjectId _id (24-hex string)
Unique index on email

New customer

Customers
0

_id	Last name	First name	Email	Phone
No customers

View raw JSON

Swagger: /api/nestjs/docs