Upgrading to the new Angular 2 router - part 11

auth-guard.ts

// auth-guard.ts
import { Injectable } from '@angular/core';
import {
  CanActivate,
  Router,
  ActivatedRouteSnapshot,
  RouterStateSnapshot
} from '@angular/router';

import { AuthService } from './services/auth/auth.service';

@Injectable()
export class AuthGuard implements CanActivate {
  constructor(private authService: AuthService, private router: Router) {}

  canActivate(next: ActivatedRouteSnapshot, state: RouterStateSnapshot) {
    if (this.authService.isLoggedIn()) {
      return true;
    }

    this.router.navigate(['login']);
    return false;
  }
}