Basic Implementation

Based on NestJS documentation, NestJS aims to be platform-agnostic framework. For current implementation, NestJS supports implementation with ExpressJS as the default config and Fastify.

Install Fastify (Optional)

To use Fastify, you can read this documentation or you can add another package:

NPM

npm i --save @nestjs/platform-fastify

YARN

yarn add @nestjs/platform-fastify

Implementation on main.ts

Express

import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  await app.listen(3000);
}
bootstrap();

Fastify

import { NestFactory } from '@nestjs/core';
import {
  FastifyAdapter,
  NestFastifyApplication,
} from '@nestjs/platform-fastify';
import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create<NestFastifyApplication>(
    AppModule,
    new FastifyAdapter(),
  );
  await app.listen(3000, '0.0.0.0');
}
bootstrap();

How to Generate Module, Controller, and Service

Module

nest g module <module-name>

Controller

nest g controller <controller-name>

Service

nest g service <service-name>