box-nestjs-monorepo/apps/box-app-api/src/main.ts

import { NestFactory } from '@nestjs/core';
import { Logger, ValidationPipe } from '@nestjs/common';
import { ConfigService } from '@nestjs/config';
import helmet from 'helmet';
import compression from 'compression';

import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create(AppModule, {
    bufferLogs: true,
  });

  const logger = new Logger('Bootstrap');
  app.useLogger(logger);

  const configService = app.get(ConfigService);

  const host =
    configService.get<string>('APP_HOST') ??
    configService.get<string>('HOST') ??
    '0.0.0.0';

  const port =
    configService.get<number>('APP_PORT') ?? Number(process.env.PORT ?? 3301);

  const crossOrigin =
    configService.get<string>('APP_CROSS_ORIGIN') ??
    configService.get<string>('CROSS_ORIGIN') ??
    '*';

  app.enableCors({
    origin:
      crossOrigin === '*' ? true : crossOrigin.split(',').map((o) => o.trim()),
    methods: 'GET,PUT,PATCH,POST,DELETE',
  });

  // 👇 Important: this makes /health become /api/v1/health
  app.setGlobalPrefix('api/v1', {
    exclude: ['/'],
  });

  app.use(helmet());
  app.use(compression());

  app.enableCors({
    origin: true,
    credentials: true,
  });

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

  await app.listen(port, host);

  const url = `http://${host}:${port}`;

  logger.log(`🚀 box-app-api listening on ${url} (global prefix: /api/v1)`);
}

bootstrap().catch((error) => {
  // eslint-disable-next-line no-console
  console.error('❌ Failed to bootstrap box-app-api', error);
  process.exit(1);
});