Get current value from Observable without subscribing (just want value one time)

Question

The title says it all really. How can I get the current value from an Observable without subscribing to it? I just want the current value one time and not new values as they

Answer 1

Not sure if this is what you are looking for. Probably write that behaviorsubject in a service. Declare it as a private and expose only the value that you have set. Something like this

 @Injectable({
   providedIn: 'root'
 })
  export class ConfigService {
    constructor(private bname:BehaviorSubject){
       this.bname = new BehaviorSubject("currentvalue");
    }

    getAsObservable(){
       this.bname.asObservable();
    }
 }

This way the external users only have access to subscribe to the behaviorSubject and you get to set the desired value in the service.