Difficulty implementing Angular Paging 2+

You may notice that paging back-end is working.

My goal is to get the first three records of the first tab in the Angular as it shows in Postman, if I can finish this first step of the implementation I will be able to do the rest.

This was my attempt;

Class of service;

  getMenuPage(skip, limit): Observable<any>{
      return this._http.get('${this.url}/menuspage?page=${skip}&size=${limit}')
      .map(res => res.json());

    }

And this is my component class;

  public title: string;
  public menu: Menu[];

  constructor(
    private _menuService: MenuAdminService
  ) {
      this.title = 'Lista de Cardápios';

    }

  ngOnInit() {
    this.getMenusPage(0,4);
  }

  getMenusPage(skip, limit) {
    this._menuService.getMenuPage(skip, limit).subscribe(
      response => {
       console.log(response.data)
        if (!response.data) {

        } else {
          this.menu = response.data;
        }
      },
      error => {
        console.log(<any>error);
      }
    );
  }

The return of my browser consoles is this:

Array(0)length: 0__proto__: Array(0)

How do I fix this implementation?