Routen-Absicherung mit RedirectCommand bei unberechtigtem Zugriff

import { inject } from '@angular/core';
import { CanActivateFn, Router, RedirectCommand } from '@angular/router';
import { AuthService } from './auth.service';
 
export const authGuard: CanActivateFn = (route, state) => {
  const authService = inject(AuthService);
  const router = inject(Router);
 
  try {
    if (authService.isAuthenticated()) {
      return true;
    }
    const loginTree = router.parseUrl('/auth/login?redirect=' + encodeURIComponent(state.url));
    return new RedirectCommand(loginTree, { skipLocationChange: false });
  } catch (error) {
    const errorTree = router.parseUrl('/error/session-expired');
    return new RedirectCommand(errorTree);
  }
};