Nest.js获取注入器实例 [英] Nest.js get injector instance

问题描述

我想创建一个通过Nest.js依赖项注入服务动态加载的类的实例.

I want to create an instance of a dynamically loaded class trough Nest.js dependency injection service.

在Angular中，我将使用Injector.create，Nest.js中的等效值是什么?

In Angular I would use Injector.create, what would be the equivalent in Nest.js ?

推荐答案

首先，您应该获得引用当前模块的ModuleRef，然后使用其"get"方法获取实例.

First of all you should get a ModuleRef which references current module, and then use its "get" method to get an instance.

@Injectable()
export class AppletService {
  files: FileService;

  constructor(
    private moduleRef: ModuleRef,
  ) { 
    this.files = moduleRef.get(FileService);
  }
}

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