nest技巧

引入另一个module的service

https://blog.bitsrc.io/nest-js-inject-service-from-another-module-cf85987398d5

item.module.ts

import { Module } from '@nestjs/common';
import { ItemController } from './item.controller';
import { ItemService } from './item.service';

@Module({
  controllers: [ItemController],
  providers: [ItemService],
  exports: [ItemService],
})
export class ItemModule {}

player.module.ts

import { Module } from '@nestjs/common';
import { ItemModule } from 'src/item/item.module';
import { PlayerController } from './player.controller';
import { PlayerService } from './player.service';

@Module({
  imports: [ItemModule],
  controllers: [PlayerController],
  providers: [PlayerService],
})
export class PlayerModule {}

player.controller.ts 这样使用

import { Controller, Get, Inject, Param } from '@nestjs/common';
import { PlayerService } from './player.service';

@Controller('player')
export class PlayerController {
  @Inject(PlayerService)
  private readonly service: PlayerService;

  @Get('find/:id')
  public findPlayerById(@Param('id') id: string): Promise<any> {
    return this.service.findPlayerById(id);
  }
}