angular-provide-once

Angular Provide Once

🔂 Removes the need to use forRoot in Angular 2+ modules by providing guaranteed singleton services.

• Complete changelog

Description

• No .forRoot(): Allows module consumers to import without calling a forRoot method
• Singletons: Allows module creators to provide singleton services that don't require consumers to be concerned with accidentally providing multiple instances
• Top level : If multiple instances are attempted, the top level instance in the provider tree will be used
• Multiple consumers: If multiple libraries depend on your service and those libraries are used in a single Angular project, you can still guarantee a single instance of your service

Install

npm install angular-provide-once --save

Usage in @NgModule

import { NgModule } from '@angular/core';
import { ProvideOnce } from 'angular-provide-once';

import { MyService } from './my-service';

@NgModule({
  imports: [],
  providers: [
    ProvideOnce(MyService),
  ],
  declarations: []
})
export class MyModule { }

License

angular-provide-once is licensed under the MIT Open Source license. For more information, see the LICENSE file in this repository.