async getTest(pagenumber: number, pagesize: number): Promise<HttpResponse<Object>> {
        const httpOptions = {
            headers: new HttpHeaders({ 'Content-Type': 'application/json' }),
            observe: 'response' as 'response'
        }
        const response = await this.httpClient.get<HttpResponse<Object>>(this.Service.getTestURL + '/' + pagenumber + '? pageSize=' + pagesize, { observe: 'response' }).toPromise();
        return response;
    }

this.subscription = timer(0, 10000).pipe(
      switchMap(() => this.myservice.checkdata())
    ).subscribe(result => this.statustext = result);