import { Injectable } from '@angular/core'; import { Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot } from '@angular/router'; import { AccountService } from '@app/_services'; @Injectable({ providedIn: 'root' }) export class AuthGuard implements CanActivate { constructor( private router: Router, private accountService: AccountService ) {} canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot) { const user = this.accountService.userValue; if (user) { // authorised so return true return true; } // not logged in so redirect to login page with the return url this.router.navigate(['/account/login'], { queryParams: { returnUrl: state.url }}); return false; } }