Initial commit.

OnPremiseApp/Services/ClientDataService.cs

@@ -0,0 +1,21 @@
+using Microsoft.AspNetCore.SignalR.Client;
+using ClientApiPoC.Shared.Models;
+
+namespace ClientApiPoC.OnPremiseApp.Services {
+    public class ClientDataService {
+        public string? ClientData { get; set; } = null;
+
+        public async Task<ClientDataModel> GetClientDataAsync(DateTime timestampServer) {
+            return new ClientDataModel() {
+                Data = this.ClientData,
+                TimestampServerUtc = timestampServer,
+                TimestampClientUtc = DateTime.UtcNow
+            };
+        }
+
+        public void ConfigureTunnelActions(HubConnection tunnelConnection) {
+            if (tunnelConnection == null) throw new ArgumentNullException(nameof(tunnelConnection));
+            tunnelConnection.On<DateTime, ClientDataModel>("GetClientData", GetClientDataAsync);
+        }
+    }
+}