Does NestJS support working with the UDP protocol?

Yes, NestJS supports working with the UDP protocol. For this, NestJS uses the built-in microservice transport UDP, which can be configured through @nestjs/microservices. This allows creating UDP servers and clients within a NestJS application.

Example of creating a UDP server in NestJS:

import { Controller } from '@nestjs/common';
import { MessagePattern, Payload, Ctx, RmqContext } from '@nestjs/microservices';
import { UdpContext, UdpPacket } from '@nestjs/microservices';

@Controller()
export class UdpController {
  @MessagePattern({ cmd: 'udp_message' })
  handleUdpMessage(@Payload() data: any, @Ctx() context: UdpContext) {
    console.log('Received UDP data:', data);
    // data processing
  }
}

To run a UDP server, you need to create a microservice with UDP transport:

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

async function bootstrap() {
  const app = await NestFactory.createMicroservice(AppModule, {
    transport: Transport.UDP,
    options: {
      port: 3000,
    },
  });
  await app.listen();
}
bootstrap();

Thus, NestJS provides a convenient way to work with UDP through the microservice module.