Simple attempt to get json data into an array

Question

I have the data being printed out to a log . Have do I simply put this in an array? So I can do

   <ul *ngIf="courses$ | async as courses else noData">
                <li *ngFor="let course of courses">
                    {{course.name}}
                </li>
            </ul>
            <ng-template #noData>No Data Available</ng-template>




export class SurveyComponent {

surveys: Survey[];
survey: Survey;

constructor(private http: HttpClient) {

}

ngOnInit(): void {
    this.http.get('http://localhost:54653/api/survey/').subscribe(data => {
          console.log(data);
    },
        err => {
            console.log('Error occured.');
        }
    );
}

}

export class Survey {
constructor(id?: string, name?: string, description?: string) {
    this.id = id;
    this.name = name;
    this.description = description;
}

public id: string;
public name: string;
public description: string;

}

EDIT 1: Why does the first .map work and the other doesn't ?

Answer 1

Like this ?

surveys$: Observable<Survey[]>;

ngOnInit(): void {
  this.surveys$ = this.http.get<Survey[]>('http://localhost:54653/api/survey/');
}