RabbitMQ在nestjs中作为microservice受支持。如果希望应用程序同时支持http请求和消息代理，则可以创建hybrid application。

// Create your regular nest application.
const app = await NestFactory.create(ApplicationModule);

// Then combine it with a RabbitMQ microservice
const microservice = app.connectMicroservice({
  transport: Transport.RMQ,
  options: {
    urls: [`amqp://localhost:5672`],
    queue: 'my_queue',
    queueOptions: { durable: false },
  },
});

await app.startAllMicroservices();
await app.listen(3001);

注意startAllMicroservices异步已过时****

import { Transport, MicroserviceOptions } from '@nestjs/microservices';
        const app = await NestFactory.create(AppModule);
              app.connectMicroservice<MicroserviceOptions>({
                transport: Transport.TCP,
                options: { retryAttempts: 5, retryDelay: 3000 },
              });

              await app.startAllMicroservices();
              await app.listen(3001);
              console.log(`Application is running on: ${await app.getUrl()}`);