<div *ngFor="let item of screenService.itemList" class="list-item" id="list-item-{{item.Key}}">
<div *ngIf="item.Status.Color" class="status-color {{item.Status.Description}}"></div>
<div class="item-content" (click)="showItemInfo(item.Key)">
    <h1 class="list-item-title">{{item.Name}}</h1>
    <div class="list-item-info">
        <ul>
            <li *ngFor="let property of screenService.properties">
                    {{item[property]}}
            </li>
        </ul>
    </div>
</div>
<div class="item-buttons" *ngIf="screenService.screenToDisplay === 'list'">
    <button (click)="screenService.deleteItem(item.Key)" class="button-white" style="float: right">Delete</button>
    <button (click)="showEditScreen(item.Key)" class="button-white" style="float: right">Edit</button>
</div>

getItemFiltered(url){
    this.http.get(url)
    .pipe(map((data : Response) =>{
        return data.json() as Item[];
    })).toPromise().then(x => {
        this.itemList = x;
    })
}

getItemFiltered(url){
    this.http.get(url)
    .pipe(map((data : Response) =>{
        return data.json() as Item[];
    }));
}

getItemFiltered(url){
    this.http.get<Item[]>(url);
}

getItemFiltered(filter:string) {
  //generar la url, aunque realmente eso debería hacerlo también el service
  this.screenService.getItemFiltered(url)
    .subscribe(list => this.itemList=list);
}

<div *ngFor="let item of itemList" class="list-item" id="list-item-{{item.Key}}">