Data object is not displayed in view

I have an issue of displaying json object on ionic view . I have retrieved the data from API with http native. when I print out , it looks like this {“user_name”:“user123”, “full_name”: “yiemon”, “email”:""}. I added it into object and try to display it on View.

here is my menu ts file.

async ionViewWillEnter() {
this.person = from(this.authService.getProfile().then((res) => {

Here is my menu.html

<ion-col class=“menu_bottom” *ngFor=“let item of (person$ | async)”>


Thank you for your help.