mat autocomplete async
this.usersForm = this.fb.group({
userInput: null
})
this.filteredUsers = this.usersForm
.get('userInput')
.valueChanges
.pipe(
debounceTime(300),
switchMap(value => this.appService.search({name: value}, 1))
);
<mat-autocomplete #auto="matAutocomplete" [displayWith]="displayFn">
<mat-option *ngFor="let user of (filteredUsers | async)?.results" [value]="user">
<span>{{ user.name }}</span>
<small> | ID: {{user.id}}</small>
</mat-option>
</mat-autocomplete>