Attempting to subscribe in a go routine

subscription/subscription.go

@@ -32,11 +32,18 @@ func NewSubscription(chanel string, unsub Unsubscriber, authToken string, msgCh
 
 func (s *Subscription) OnMessage(onMessage func(channel string, msg message.Data)) error {
 	var inMsg *message.Message
+	go s.StartMessageLoop(inMsg, onMessage)
+
+	return nil
+}
+
+func (s *Subscription) StartMessageLoop(inMsg *message.Message, callback func(channel string, msg message.Data)) error {
 	for inMsg = range s.msgCh {
 		if inMsg.GetError() != nil {
+
 			return inMsg.GetError()
 		}
-		onMessage(inMsg.Channel, inMsg.Data)
+		callback(inMsg.Channel, inMsg.Data)
 	}
 	return nil
 }