public GetData (myparams: URLSearchParams):Observable<Response>{
	var observable = this.http.get(this.myUrl, { search: myparams });
	this.subscribeTo(observable);
	return observable;            
}

private SubscribeTo (request: Observable<Response>): void
{
	this.animationService.start();
	request.subscribe(  ()=>this.animationService.stop());
}

public GetData (myparams: URLSearchParams):Observable<Response>{
	var observable = this.http.get(this.myUrl, { search: myparams });
//	this.subscribeTo(observable);
	return observable;            
}

private SubscribeTo (request: Observable<Response>): void
{      
        var t = this;
	t.animationService.start();
	request.subscribe(  ()=>t.animationService.stop());
}

private SubscribeTo (request: Observable<Response>): void
{
	this.animationService.start();
	request.subscribe(  ()=>this.animationService.stop());
}

if (operator) {
      operator.call(sink, this.source);
    } else {
      sink.add(this._trySubscribe(sink));   << Заходило сюда
    }

export class AnimationService {
  public status: Subject<boolean> = new Subject();
  private _active: number = 0;

  public get active(): boolean {
    return (this._active>0);
  }

  public set active(v: boolean) {
    if (v==true)
        this._active ++;
    else
        this._active --;

    this.status.next(this._active>0);
  }

  public start(): void {
    this.active = true;
  }

  public stop(): void {
    this.active = false;
  }

public GetData (myparams: URLSearchParams):Observable<Response>{
	var observable = this.http.get(this.myUrl, { search: myparams });
	this.subscribeTo(observable);
	return observable;            
}

<animation-component></animation-component>
<router-outlet></router-outlet>

return this.http.get(this.commentsUrl)
                        // ...and calling .json() on the response to return data
                         .map((res:Response) => res.json())

db.users.Select(x=>x.id)