How to send upstream messages with FCM from android client?

Question

We were using GoogleCloudMessaging.getInstance(context).send(context.getString(R.string.gcm_defaultSenderId) + "@gcm.googleapis.com", mId, mBundle); to send upstream messages, but since I was trying to migrate new fcm concept, I need to change that too, but could not find any documentation yet.

My best guess is to use :

RemoteMessage message = new RemoteMessage.Builder(<?>).setMessageId(mId).setData ...
FirebaseMessaging.getInstance().send(message);

but then what is it the Builder takes as a parameter? Yet again, could not find api...

So simply as title states, how to send upstream messages using new fcm concept?

Answer 1

Well, my answer comes fast. Keeping question and answer for future reference. I have found the answer on https://firebase.google.com/docs/cloud-messaging/android/upstream#sample-send

thanks to google's smart exclusion to search results In order to show you the most relevant results, we have omitted some entries very similar to the 2 already displayed. If you like, you can repeat the search with the omitted results included.

new API would be like:

FirebaseMessaging fm = FirebaseMessaging.getInstance();
fm.send(new RemoteMessage.Builder(SENDER_ID + "@gcm.googleapis.com")
  .setMessageId(Integer.toString(msgId.incrementAndGet()))
  .addData("my_message", "Hello World")
  .addData("my_action","SAY_HELLO")
  .build());