app.module.ts

import { Module, OnApplicationShutdown, OnModuleDestroy } from '@nestjs/common';
import { setTimeout } from 'timers/promises';

@Module({})
export class AppModule implements OnModuleDestroy, OnApplicationShutdown {
  async onApplicationShutdown(signal?: string) {
    console.log('onApplicationShutdown', signal);
  }

  async onModuleDestroy() {
    console.log('onModuleDestroy before wait');
    await setTimeout(2000);
    console.log('onModuleDestroy after wait');
  }
}