RxjS shareReplay : how to reset its value?

Question

I use shareReplay to call only once (like a cache) a webservice to retrieve some informations :

In my service :

getProf         


        

Answer 1

The other answers are all fine, but rather than having to reset the actual shareReplayed observable, a simpler approach might just be caching the result like so:

protected profile$: Observable;

getProfile$(): Observable {
  if (!this.profile$) {
    this.profile$ = this.callWS().pipe(shareReplay(1));
  }

  return this.profile$;
}

resetProfile() {
  this.profile$ = null;
}

ref: https://blog.angularindepth.com/fastest-way-to-cache-for-lazy-developers-angular-with-rxjs-444a198ed6a6