Using the on_items_shipped webhook. Sometimes it works, sometimes it dont. Which is pretty convenient. example of the response (by curling the resource url):
{"shipments":[],"total":0,"page":1,"pages":0}
So, I guess I have to make a cron that just runs and sweeps thru, tyring to figure out which ones worked and which ones you guys borked. Let me know when you've got it fixed.
