add some initial stuff

song_of_the_day/MessengerIntegration/SignalIntegration.cs

@@ -0,0 +1,33 @@
+
+public class SignalIntegration
+{
+    public static SignalIntegration Instance;
+
+    public SignalIntegration(string uri, int port, string phoneNumber)
+    {
+        var http = new HttpClient() { 
+            BaseAddress = new Uri("http://" + uri + ":" + port) 
+        };
+        apiClient = new song_of_the_day.swaggerClient(http);
+        apiClient.BaseUrl = "";
+        this.phoneNumber = phoneNumber;
+    }
+
+    private song_of_the_day.swaggerClient apiClient;
+
+    private string phoneNumber;
+
+    public async Task ListGroups()
+    {
+        Console.WriteLine("listing groups");
+        try {
+            ICollection<song_of_the_day.GroupEntry> groupEntries = await apiClient.GroupsAllAsync(this.phoneNumber);
+            Console.WriteLine($"{groupEntries.Count} groups");
+        }
+        catch (Exception ex) {
+            Console.WriteLine("Exception: " + ex.Message);
+        }
+        
+        Console.WriteLine("listing groups done");
+    }
+}