A progressive Node.js framework for building efficient and scalable server-side applications, heavily inspired by Angular.

Nest framework TypeScript starter repository.

$ npm install

# development
$ npm run start

# watch mode
$ npm run start:dev

# production mode
$ npm run start:prod

# unit tests
$ npm run test

# e2e tests
$ npm run test:e2e

# test coverage
$ npm run test:cov

Language: TypeScript and pure JavaScript

Prerequisites: Please make sure that Node.js (>= 10.13.0) is installed on your operating system.

Setup:

  # To scaffold the project with the Nest CLI, run the following commands
  $ npm i -g @nestjs/cli
  
  # Creating a product-catalog project with the Nest CLI
  $ nest new product-catalog

The project directory will be created, node modules and a few other boilerplate files will be installed, and a src/ directory will be created and populated with several core files.

  src
    > products
    -app.controller.ts
    -app.module.ts
    -app.service.ts
    -main.ts

app.controller.ts: Basic controller sample with a single route. Controllers are responsible for handling incoming requests and returning responses to the client

app.module.ts: A module is a class annotated with a @Module() decorator. The @Module() decorator provides metadata that Nest makes use of to organize the application structure.

Services: This service will be responsible for data storage and retrieval, and is designed to be used by the ProductController, so it's a good candidate to be defined as a provider. Thus, we decorate the class with @Injectable().

main.ts: The entry file of the application which uses the core function NestFactory to create a Nest application instance. To create a Nest application instance, we use the core NestFactory class. NestFactory exposes a few static methods that allow creating an application instance. The create() method returns an application object, which fulfills the INestApplication interface

Provider: Providers are a fundamental concept in Nest. Many of the basic Nest classes may be treated as a provider – services, repositories, factories, helpers, and so on The main idea of a provider is that it can inject dependencies; this means objects can create various relationships with each other

Don't forget to add Product module to the app module's import array

install mongoose by running below command in your terminal in your project dir

npm install --save mongoose @nestjs/mongoose
npm install --save-dev @types/mongoose