import { Injectable } from '@angular/core'; import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, UrlTree } from '@angular/router'; import { Observable } from 'rxjs'; import { AuthService } from './auth.service'; @Injectable({ providedIn: 'root' }) export class AuthGuard implements CanActivate { constructor(private authService: AuthService){} canActivate( next: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable | Promise | boolean | UrlTree { return this.authService.isLoggedIn(); } }