angular-material-autocomplete-async-part2-component.html

<mat-autocomplete #auto="matAutocomplete" [displayWith]="displayFn">
  <mat-option *ngIf="isLoading" class="is-loading"><mat-spinner diameter="50"></mat-spinner></mat-option>
  <ng-container *ngIf="!isLoading">
    <mat-option *ngFor="let user of filteredUsers" [value]="user">
      <span>{{ user.name }}</span>
      <small> | ID: {{user.id}}</small>
    </mat-option>
  </ng-container>
</mat-autocomplete>