import { Injectable } from '@angular/core'; import { Router } from '@angular/router'; import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, UrlTree } from '@angular/router'; import { Observable } from 'rxjs'; @Injectable({ providedIn: 'root' }) export class AuthGuard implements CanActivate { constructor(private router: Router) {} canActivate( next: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable | Promise | boolean | UrlTree { const aa = true; //this.router.navigate(["/"]); return aa; } }