import { Injectable } from '@angular/core'; @Injectable({ providedIn: 'root' }) export class AuthService { constructor() { } login(user: string, pass: string): boolean { if(user === 'admin' && pass === 'admin') { const authToken = 'aaa' localStorage.setItem('login_token', authToken); return true; }else { return false; } } logout() { localStorage.removeItem('login_token'); } isLoggedIn() { return !!localStorage.getItem('login_token'); } }