jangular-cli/templates/frontend/src/app/auth.guard.ts

A powerful CLI tool for rapidly bootstrapping Angular 17 & Spring Boot (Java 21) applications with integrated security, services, and enterprise-ready best practices.

import { inject } from '@angular/core';
import { ActivatedRouteSnapshot, Router, RouterStateSnapshot, UrlTree } from '@angular/router';
import { AuthService } from './services/auth/auth.service';

export const authGuard = (
  route: ActivatedRouteSnapshot,
  state: RouterStateSnapshot
): boolean | UrlTree => {
  const authService = inject(AuthService);
  const router = inject(Router);

  // Allow unauthenticated access to register
  if (state.url.startsWith('/auth/register')) {
    return true;
  }

  if (authService.isAuthenticated()) {
    return true;
  }

  return router.createUrlTree(['/auth/login'], {
    queryParams: { returnUrl: state.url }
  });
};