Events Service for Angular

Events is a publish-subscribe style event system based on sqlProvider/angular2-pubsub and modified to be similar to ionic-angular/Events.

Usage

• Import service in your codes or download via npm.

  • Angular 4: npm install --save [email protected]
  • Angular 5: npm install --save [email protected]
  • Angular 6: npm install --save [email protected]
  • Angular 8: npm install --save [email protected]
  • Angular 10: npm install --save [email protected]
  • Angular 11: npm install --save [email protected]
  • ⚠️ Version 5.0.1 is incompatible with Angular 5 and should have been version 6.0.0.

• Add module bundle to imports in your application.

...

import { EventsModule } from 'angular4-events';

@NgModule({
	declarations: [
		...
	],
	imports: [
		...
		EventsModule.forRoot()
	]
})

...

• And import service wherever you want

Documentation

Class Overview

declare class EventsService {
	private events: Object;
	publish(event: string, eventObject?: any): void;
	subscribe(): undefined;
	subscribe(event: string): Observable<any>;
	subscribe(event: string, callback: (value: any) => void): Subscription;
	subscribe(event: string, callback: (value: any) => void, error: (error: any) => void): Subscription;
	subscribe(event: string, callback: (value: any) => void, error: (error: any) => void, complete: () => void): Subscription;
}

EventsService.publish(event: string, eventObject?: any): void

Publish event to all subscriber.

etc.

export class OverlayComponent implements OnInit, OnDestroy {
	constructor(private events: EventsService) { }

	anyFunc(){
		this.events.publish('pleaseCloseSidenav', 'helloIAmOverlay');
	}
}

EventsService.subscribe(event: string): Observable

Subscribe to channel.

etc.

export class NavigationComponent implements OnInit, OnDestroy {
	sideanvSub: any;
	
	constructor(private pubsub: EventsService) { }

	ngOnInit() {
		// usage of subscribe(event: string): <Observable<any>>;
		this.closeSidenavSub = this.pubsub.subscribe('pleaseCloseSidenav').subscribe((from) => {
			this.sidenavOpened = false;
		});

		// usage of subscribe(event: string, callback: (value: any) => void, error?: (error: any) => void, complete?: () => void): Subscription;
		this.openSidenavSub = this.pubsub.subscribe('pleaseOpenSidenav', (from) => {
			this.sidenavOpened = true;
		});
	}
	ngOnDestroy() {
		this.closeSidenavSub.unsubscribe();
		this.openSidenavSub.unsubscribe();
	}

Build the source

Follow the steps to run the tests and build the source code.

npm install
npm test
npm run build

Commands above will generate the ready to use bundles under the ./dist folder.