opt-cc/static/src/app/login/login.component.ts

import {Component, OnInit} from "@angular/core";
import {ActivatedRoute, Router} from "@angular/router";
import {LoginService} from "../services/login-service/login-service";


@Component({
  moduleId: module.id,
  templateUrl: 'login.component.html',
  styleUrls: ['login.component.css']
})

export class LoginComponent implements OnInit {

  showErrorLabel = false;

  loading = false;

  returnUrl: string;

  constructor(private route: ActivatedRoute,
              private router: Router,
              private loginService: LoginService) {
  }

  ngOnInit() {
    // reset login status
    this.loginService.logout();
    // redirect on success
    this.returnUrl = '/cc-overview'
  }

  login(username: string, password: string) {
    if (username.length > 0 && password.length > 0) {
      this.loading = true;
      this.loginService.login(username, password)
        .subscribe(
          data => {
            this.router.navigate([this.returnUrl]);
          },
          error => {
            this.showErrorLabel = true;
            setTimeout(() => {
              this.showErrorLabel = false;
            }, 4000);
            this.loading = false;
          });
    }
  }
}