Angular 从根目录配置共享模块中的模块

我有一个共享模块，用于导入和配置另一个模块

我想做的是对根模块隐藏共享模块的依赖关系，但允许根模块通过配置共享模块来配置它。例如：

SharedModule.ts：

 @NgModule({
  imports: [
    //want to configure this from root module without importing into root module
    ConfigModule.forRoot({
      provide: ConfigLoader,
      useFactory: (configFactory),
      deps: [HttpClient]
    })
  ],
  declarations: [MyComponent],
  exports: [MyComponent],
  providers: [HttpClient]
})
export class SharedModule{ }

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    HttpClientModule,
    AppRoutingModule,
    SharedModule, //Want to configure ConfigModule from here
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

AppModule.ts：

 @NgModule({
  imports: [
    //want to configure this from root module without importing into root module
    ConfigModule.forRoot({
      provide: ConfigLoader,
      useFactory: (configFactory),
      deps: [HttpClient]
    })
  ],
  declarations: [MyComponent],
  exports: [MyComponent],
  providers: [HttpClient]
})
export class SharedModule{ }

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    HttpClientModule,
    AppRoutingModule,
    SharedModule, //Want to configure ConfigModule from here
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

---

通过实现ModuleWithProviders（static forRoot），这似乎是不可能的，因为它不公开导入。有什么想法吗？

这是在配置CustomConfig，而不是ConfigModule。

export class SampleModule {
  static forRoot(config: CustomConfig): ModuleWithProviders {
    // User config get logged here
    console.log(config);
    return {
      ngModule: SampleModule,
      providers: [SampleService, {provide: 'config', useValue: config}]
    };
  }
}
@Injectable()
export class SampleService {

  foo: any;

  constructor(@Inject('config') private config:any) {