matcher/src/main.ts

import { NestFactory } from '@nestjs/core';
import { MicroserviceOptions, Transport } from '@nestjs/microservices';
// import { join } from 'path';
import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  app.connectMicroservice<MicroserviceOptions>({
    transport: Transport.TCP,
  });
  // app.connectMicroservice<MicroserviceOptions>({
  //   transport: Transport.GRPC,
  //   options: {
  //     // package: ['matcher', 'health'],
  //     package: ['health'],
  //     protoPath: [
  //       // join(__dirname, 'modules/matcher/adapters/primaries/matcher.proto'),
  //       join(__dirname, 'modules/health/adapters/primaries/health.proto'),
  //     ],
  //     url: process.env.SERVICE_URL + ':' + process.env.SERVICE_PORT,
  //     loader: { keepCase: true },
  //   },
  // });

  await app.startAllMicroservices();
  await app.listen(process.env.HEALTH_SERVICE_PORT);
}
bootstrap();