require header match

tcp-cart-mux-server.go

@@ -70,7 +70,7 @@ func (m *TCPCartServerMux) handleFunction(connection net.Conn, messageType CartM
 	m.mu.RUnlock()
 	if ok {
 		responseType, responseData, err := fn(id, data)
-
+		connection.Write(header[:])
 		if err != nil {
 			errData := []byte(err.Error())
 			err = binary.Write(connection, binary.LittleEndian, CartPacket{
@@ -96,6 +96,8 @@ func (m *TCPCartServerMux) handleFunction(connection net.Conn, messageType CartM
 		packetsSent.Inc()
 		_, err = connection.Write(responseData)
 		return true, err
+	} else {
+		log.Printf("No cart handler for type: %d\n", messageType)
 	}
 	return false, nil
 }