init(env: EnvOneSignal): void {
    this.oneSignal.startInit(env.appId, env.googleProjectNumber);
    this.oneSignal.inFocusDisplaying(this.oneSignal.OSInFocusDisplayOption.InAppAlert);

    // Set your iOS Settings
    const iosSettings = {
      kOSSettingsKeyAutoPrompt: true,
      kOSSettingsKeyInAppLaunchURL: false
    };

    this.oneSignal.iOSSettings(iosSettings);

    // Retrieve the OneSignal user id and the device token
    this.oneSignal.getIds()
    .then((ids) => {
      /**
      * Return userId and pushToken
      */
      console.log('getIds: ' + JSON.stringify(ids));
    });

    this.oneSignal.handleNotificationReceived().subscribe((OSNotification) => {
      console.log('Notification received', OSNotification);
    // do something when notification is received
    });

    this.oneSignal.handleNotificationOpened().subscribe((OSNotificationOpenedResult) => {
      // do something when a notification is opened
      console.log('Notification opened', OSNotificationOpenedResult.notification);
    });
    this.oneSignal.endInit();
  }

  getPermissionSubscriptionState(): Promise<OSPermissionSubscriptionState> {

    /**
     * .then(State => {console.log(State.subscriptionStatus)})
     */

    return this.oneSignal.getPermissionSubscriptionState();
  }

 /**
  * promptForPushNotificationsWithUserResponse
  *  - Only iOS
  *  - Only works if you set kOSSettingsKeyAutoPrompt to false.
  *  https://documentation.onesignal.com/docs/cordova-sdk#section--promptforpushnotificationswithuserresponse-
  */
 register() {
   this.oneSignal.promptForPushNotificationsWithUserResponse().then(
     (response: boolean) => {
       console.log(response);
     },
     (reason: any) => {
       console.log(reason);
     }
   );
 }

      .map(res => {
        if (res) {
          this.storage.setValue('id', parseInt(res.id));
          this.storage.setValue('token', res.token);
        }

        if (window.hasOwnProperty('cordova')) {
          this.oneSignal.getIds().then(res => {
            this.registerPush(res.userId).subscribe();
          });
        }

        return res;
      });

 return this.oneSignal.logoutEmail().then(() => {
   this.oneSignal.deleteTag('domain');
 });

 signOutUser(): Promise<void> {
   return this.oneSignal.logoutEmail().then(() => {
     this.oneSignal.deleteTag('domain');
   });
 }

 signInUser(authData): void {
   this.oneSignal.sendTag('domain', authData.visitor.site);
   this.oneSignal.setEmail(authData.visitor.email);
 }

 setSubscription(enable: boolean): void {
   this.oneSignal.setSubscription(enable);
 }

 endInit(){
   this.oneSignal.endInit()
 }

 handleNotificationOpened(){
   return this.oneSignal.handleNotificationOpened();
 }