There are multiple different ways to do this. You could write your own smart app, I think you could use core (but you should ask the core experts in the core peer Assistance thread to be sure)
or you can just use the IFTTT maker service/channel to receive the post and then the smartthings IFTTT service to trigger whatever you want to have happen on the SmartThings side. For example, I use an I Beacon being detected to trigger SmartThings events because my IBeacon receiving app can send an HTTP post, so I send that to my IFTTT account and use its receipt as the “if” and SmartThings as the " that."
