Migrated project to Kotlin and created a new frontend

frontend/src/app/broadcast/broadcast.component.html

@@ -0,0 +1,16 @@
+<div *ngIf="broadcasts$ | async as broadcasts">
+  <h1>{{broadcasts.sender.alias || broadcasts.sender.address}}</h1>
+  <mat-expansion-panel *ngFor="let message of broadcasts.messages">
+    <mat-expansion-panel-header>
+      <mat-panel-title>
+        {{message.subject}}
+      </mat-panel-title>
+      <mat-panel-description>
+        {{message.received * 1000 | date:'medium'}}
+      </mat-panel-description>
+    </mat-expansion-panel-header>
+
+    <pre><code>{{message.body}}</code></pre>
+
+  </mat-expansion-panel>
+</div>

frontend/src/app/broadcast/broadcast.component.scss

@@ -0,0 +1,4 @@
+:host {
+  margin: 2em;
+  display: block;
+}

frontend/src/app/broadcast/broadcast.component.spec.ts

@@ -0,0 +1,25 @@
+import { async, ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { BroadcastComponent } from './broadcast.component';
+
+describe('BroadcastComponent', () => {
+  let component: BroadcastComponent;
+  let fixture: ComponentFixture<BroadcastComponent>;
+
+  beforeEach(async(() => {
+    TestBed.configureTestingModule({
+      declarations: [ BroadcastComponent ]
+    })
+    .compileComponents();
+  }));
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(BroadcastComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});

frontend/src/app/broadcast/broadcast.component.ts

@@ -0,0 +1,40 @@
+import {Component, OnInit} from '@angular/core';
+import {ActivatedRoute} from "@angular/router";
+import {HttpClient} from "@angular/common/http";
+import {Observable} from "rxjs/Observable";
+
+@Component({
+  selector: 'app-broadcast',
+  templateUrl: './broadcast.component.html',
+  styleUrls: ['./broadcast.component.scss']
+})
+export class BroadcastComponent implements OnInit {
+
+  broadcasts$: Observable<Broadcasts>;
+
+  constructor(private route: ActivatedRoute, private http: HttpClient) {
+  }
+
+  ngOnInit() {
+    let address = this.route.snapshot.params['address'];
+    this.broadcasts$ = this.http.get<Broadcasts>('http://localhost:8080/read/' + address)
+  }
+
+}
+
+class Sender {
+  address: String;
+  alias: String;
+}
+
+class Message {
+  id: any;
+  received: number;
+  subject: string;
+  body: string;
+}
+
+class Broadcasts {
+  sender: Sender;
+  messages: Message[]
+}