D-Net

import { Injectable } from '@angular/core';

import {Router, CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, Route, CanLoad} from '@angular/router';

import {Observable}       from 'rxjs/Observable';

import {Session} from './utils/helper.class';

import {LoginErrorCodes} from './utils/guardHelper.class';

@Injectable()

export class LoginGuard implements CanActivate, CanLoad {

  constructor(private router: Router) {}

  check(path: string): boolean{

    //var user;

    let loggedIn = false;

    let errorCode = LoginErrorCodes.NOT_LOGIN;

    if(Session.isLoggedIn()) {

      loggedIn = true;

    }

    if(!loggedIn){

      // this.guardHelper.redirect("/user-info",errorCode,state.url);

      this.router.navigate(['/user-info'], { queryParams: { "errorCode": errorCode, path} });

    }

    return loggedIn;

  }

  canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | boolean {

    return this.check(state.url);

  }

  canLoad(route: Route): Observable<boolean> | Promise<boolean> | boolean {

    return this.check('/' + route.path);

  }

}