create-nest-template-malahimdev/template/src/main.ts

Scaffolds a NestJS template with Swagger, global pipes, exception filters, MongoDB connection and response helpers.

import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';
import { ConfigService } from '@nestjs/config';
import { DocumentBuilder, SwaggerModule } from '@nestjs/swagger';
import { ValidationPipe } from '@nestjs/common';
import { SwaggerTheme, SwaggerThemeNameEnum } from 'swagger-themes';

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

  app.enableCors({
    origin: ['http://localhost:3000', 'https://malahim.dev'],
    credentials: true,
  });

  app.useGlobalPipes(
    new ValidationPipe({
      whitelist: true,
      forbidNonWhitelisted: true,
      transform: true,
    }),
  );

  const config = new DocumentBuilder()
    .setTitle('Startup Template')
    .setDescription('Generated by Malahim Haseeb')
    .setVersion('1.0')
    .addTag('startup')
    .addBearerAuth()
    .build();
  const documentFactory = () => SwaggerModule.createDocument(app, config);
  const theme = new SwaggerTheme();
  const optionsV1 = {
    explorer: true,
    customCss: theme.getBuffer(SwaggerThemeNameEnum.MATERIAL)
  };
  const optionsV2 = {
    explorer: true,
    customCss: theme.getBuffer(SwaggerThemeNameEnum.DRACULA)
  };
  SwaggerModule.setup('docs', app, documentFactory, optionsV1);
  SwaggerModule.setup('docsdark', app, documentFactory, optionsV2);

  const configService = app.get(ConfigService);
  const port = configService.get<number>('PORT') || 3000;
  await app.listen(port);
}
bootstrap();