Problem trying to get values from my API ionic 4

I’m trying to get the values from my API but I can’t show the in ion-list.
In the image you can see that the data is loaded but I can’t show them in ion-list

I try tho show the in this way

    <ion-item *ngFor="let item of (results | async)">

      <ion-label text-wrap>{{item.nombreProducto}}</ion-label>
      <ion-button color="light"><img src="../../assets/icon/binoculars.png" alt="" (click)="presentarModal()" item-end></ion-button>
      <ion-button color="light"><img src="../../assets/icon/cart.png" alt="" (click)="addCart()" item-end></ion-button>

I’ve created a service that have a method called getAll

getAll(): Observable<any>{
return this.http.get(`${this.url}`).pipe(
    console.log('Data', results);
    return results['Data'];

And in my the getAll method contain this

  this.results = this.productService.getAll();

What i’m doing wrong?