getTasks(): Observable<TaskDto[]> {
  let url = `/tasks/gettasks`;
  return this.http
    .get(url)
    .subscribe(res => res);
}

getTasks(): Observable<[TaskDto[],Number]> {
  let url = `/tasks/gettasks`;
  return this.http
    .get<TaskDto[]>(url, {observe: 'response'})
    .subscribe(res => {
      let payload:TaskDto[] = res.body;
      let page:Number = Number(res.headers.get('X-Pagination'));
      let output = [payload, page];
    });
}

getTasks(): Observable<[TaskDto[],Number]> {
  let url = `/tasks/gettasks`;
  return this.http
    .get<TaskDto[]>(url, {observe: 'response'})
    .pipe(map(res => {
      let payload:TaskDto[] = res.body;
      let page:Number = Number(res.headers.get('X-Pagination'));
      let output: [TaskDto[],Number] = [payload, page];
      return output;
    }));
}