added login component

src/app/account/login/login.component.ts

@@ -0,0 +1,36 @@
+import { Component, OnInit } from '@angular/core';
+import { FormControl, FormGroup } from '@angular/forms';
+import { AccountService } from '../account.service';
+import {ActivatedRoute, Router} from '@angular/router';
+
+@Component({
+  selector: 'app-login',
+  templateUrl: './login.component.html',
+  styleUrls: ['./login.component.css']
+})
+export class LoginComponent implements OnInit {
+  form: FormGroup = new FormGroup({
+    username: new FormControl(''),
+    password: new FormControl(''),
+  });
+  loading = false;
+  returnUrl = this.activatedRoute.snapshot.queryParams['returnUrl'] || '/';
+
+  onLogin() {
+    this.loading = true;
+    if (this.form.invalid) {
+      return;
+    }
+    console.log(this.form.value);
+
+  }
+
+  constructor(private accountService: AccountService,
+              private activatedRoute: ActivatedRoute,
+              private router: Router,
+              ) { }
+
+  ngOnInit(): void {
+  }
+
+}