Google App Engine and Google Cloud Message - Send-to-sync messages

Code snippet for sending a Send-to-sync messages in GAE

//API_KEY is a public API key created for application in Google Developers Console

Sender sender = new Sender(API_KEY);

  

Message msg = new Message.Builder()

 .addData("New message received", message)

 .collapseKey("key1").build();

 

Result result = sender.send(msg, gcmid),5);

http://developer.android.com/google/gcm/adv.html#s2s