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NestJS Setup

The Nest CLI scaffolds and manages projects. Install it, generate a project, and you have a working, well-structured app in seconds.

Create a project

bash

npm install -g @nestjs/cli
nest new my-app
cd my-app
npm run start:dev

The dev server runs on http://localhost:3000 and reloads on every change.

Generating building blocks

The CLI generates boilerplate consistently — files, tests, and module wiring — so you don't create them by hand.

bash

nest generate module users       # or: nest g module users
nest g controller users
nest g service users
nest g resource users            # a full CRUD resource in one command

Command	Creates
`g module`	a feature module
`g controller`	a controller (+ spec)
`g service`	a service/provider (+ spec)
`g resource`	module + controller + service + DTOs + CRUD

Useful scripts

bash

npm run start:dev    # watch mode (development)
npm run build        # compile to dist/
npm run start:prod   # run the compiled build
npm run test         # run unit tests

Tip: nest g resource users is the fastest way to see a complete, idiomatic CRUD feature — a great template to learn from and adapt.

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