```html{1}
<amplify-authenticator
  [socialProviders]="['amazon', 'apple', 'facebook', 'google']"
>
  <ng-template
    amplifySlot="authenticated"
    let-user="user"
    let-signOut="signOut"
  >
    <h2>Welcome, {{ user.username }}!</h2>
    <button (click)="signOut()">Sign Out</button>
  </ng-template>
</amplify-authenticator>
```