return new Promise(async (resolve, reject) => {
   try {
     keycloak.keycloakEvents$.subscribe(event => {
       eventStackService.triggerEvent(event);
     });
     await keycloak.init({
       config: environment.keycloak
     });
     resolve();
   } catch (error) {
     reject(error);
   }
 });

 return new Promise(async (resolve, reject) => {
   try {
     await keycloak.init({
       config: environment.keycloak,
       initOptions: {
         onLoad: 'login-required',
         checkLoginIframe: false
       },
       bearerExcludedUrls: []
     });
     resolve();
   } catch (error) {
     reject(error);
   }
 });

    return new Promise(async (resolve, reject) => {
      if (!this.authenticated) {
        this.keycloakAngular.login();
        return;
      }

      const requiredRoles = route.data.roles;
      if (!requiredRoles || requiredRoles.length === 0) {
        return resolve(true);
      } else {
        if (!this.roles || this.roles.length === 0) {
          resolve(false);
        }
        let granted: boolean = false;
        for (const requiredRole of requiredRoles) {
          if (this.roles.indexOf(requiredRole) > -1) {
            granted = true;
            break;
          }
        }
        resolve(granted);
      }
    });

 async doLogout() {
   await this.keycloakService.logout();
 }

 async ngOnInit() {
   if (await this.keycloakService.isLoggedIn()) {
     this.userDetails = await this.keycloakService.loadUserProfile();
   }
 }