add refferencing EndOfMessage

EVCB_OCPP.WSServer/Service/WsService/WsSession.cs

@@ -56,6 +56,7 @@ namespace EVCB_OCPP.WSServer.Service.WsService
 
         private async Task StartReceivd(WebSocket webSocket, CancellationToken token)
         {
+            string received = string.Empty;
             while (!token.IsCancellationRequested)
             {
                 var buffer = new byte[1024 * 4];
@@ -65,10 +66,14 @@ namespace EVCB_OCPP.WSServer.Service.WsService
                     _ = InternalClose(result.CloseStatus.Value);
                     break;
                 }
-                string received = Encoding.UTF8.GetString(buffer, 0, result.Count);
+                received += Encoding.UTF8.GetString(buffer, 0, result.Count);
                 //m_ReceiveData?.Invoke(this, received);
                 LastActiveTime = DateTime.UtcNow;
-                HandleReceivedData(received);
+                if (result.EndOfMessage)
+                {
+                    HandleReceivedData(received);
+                    received = string.Empty;
+                }
             }
         }