@angular/core

importProvidersFrom

function

Collects providers from all NgModules and standalone components, including transitively imported ones.

importProvidersFrom(
  ...sources: ImportProvidersSource[]
): EnvironmentProviders;

Collects providers from all NgModules and standalone components, including transitively imported ones.

Providers extracted via importProvidersFrom are only usable in an application injector or another environment injector (such as a route injector). They should not be used in component providers.

More information about standalone components can be found in this guide.

The results of the importProvidersFrom call can be used in the bootstrapApplication call:

          
            await bootstrapApplication(RootComponent, {  providers: [    importProvidersFrom(NgModuleOne, NgModuleTwo)  ]});

You can also use the importProvidersFrom results in the providers field of a route, when a standalone component is used:

          
            export const ROUTES: Route[] = [  {    path: 'foo',    providers: [      importProvidersFrom(NgModuleOne, NgModuleTwo)    ],    component: YourStandaloneComponent  }];