Working with WebRTC in Ionic

Ionic Framework
2 
import { NgxPermissionsService } from 'ngx-permissions';
………
perm = ["ADMIN", "MEDIA", "VIDEO_CAPTURE", "AUDIO_CAPTURE"];
.......
this.permissionsService.hasPermission(this.perm).then(success => {
:::::  



[app.module.ts]


:::;
imports:
...
NgxPermissionsModule.forChild({
      permissionsIsolate: true,
      rolesIsolate: true}),