Initial commit.

OnPremiseApp/App.xaml.cs

@@ -0,0 +1,36 @@
+using System.Windows;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using ClientApiPoC.OnPremiseApp.Services;
+
+namespace ClientApiPoC.OnPremiseApp {
+    public partial class App : Application {
+        private IHost _host;
+
+        public App() {
+            _host = Host.CreateDefaultBuilder().ConfigureServices(services => {
+                // Services:
+                services.AddSingleton<ClientDataService>();
+                // ViewModels:
+                services.AddTransient<MainWindowViewModel>();
+                // Views:
+                services.AddSingleton<MainWindow>();
+            }).Build();
+        }
+
+        protected override async void OnStartup(StartupEventArgs e) {
+            await _host.StartAsync();
+
+            var window = _host.Services.GetRequiredService<MainWindow>();
+            window.Show();
+
+            base.OnStartup(e);
+        }
+
+        protected override async void OnExit(ExitEventArgs e) {
+            await _host.StopAsync();
+            _host.Dispose();
+            base.OnExit(e);
+        }
+    }
+}