import { Injectable } from '@angular/core' ; import { ActivatedRouteSnapshot , CanActivate , Router , RouterStateSnapshot , UrlTree } from "@angular/router" ; import { OauthAuthorizationService } from "./oauth-authorization.service" ; import { Observable } from "rxjs" ; @ Injectable ( { providedIn : 'root' } ) export class AuthorizationService implements CanActivate { constructor ( private router , private authorization ) { } canActivate ( route , state ) { if ( ! this . authorization . IsAuthenticated ) { this . router . navigate ( [ 'general' ] ) ; return false ; } return true ; } }