Partial rewrite, missing:

- Correctly parsing incoming messages
- Sending the gamestate after relevant actions

Websockets/ConnectionInstance.cs

@@ -1,17 +1,30 @@
 using System.Net.WebSockets;
+using System.Text;
 
 namespace MauMau_Server.Websockets;
 
 public class ConnectionInstance
 {
     public string Name { get; set; }
-    public string ConnectionId { get; set; }
+    public string Id { get; set; }
     public WebSocket Socket { get; set; }
     
-    public ConnectionInstance(string name, string connectionId, WebSocket socket)
+    public ConnectionInstance(string name, string id, WebSocket socket)
     {
         Name = name;
-        ConnectionId = connectionId;
+        Id = id;
         Socket = socket;
     }
+    
+    /**
+     * <summary>
+     * Sends a message to the client. This method is asynchronous and formats the message to be ready to be sent.
+     * </summary>
+     */
+    public void SendMessageAsync(string message)
+    {
+        var bytes = Encoding.Default.GetBytes(message);
+        var arraySegment = new ArraySegment<byte>(bytes);
+        Socket.SendAsync(arraySegment, WebSocketMessageType.Text, true, CancellationToken.None);
+    }
 }