Thanks Guys. So would you setup a install end point to the app myapp/install and set this as the url call back in the app config?
Im just not sure how to make the API calls to setup a new fulfillment service and subscribe to the webhooks when the app is installed only.
I can do this via the api in my test app when I run it locally, just not sure how to put it together when its deployed and someone installs my APP
thanks
andrew