My Facebook Instant app does not have a play button, so it's not possible to launch the app via sharing.
Could someone outline what I need to do to get this button to appear please?
I've set up everything (including an app page) in the dashboard. I'm assuming it has something to do with the "fbapp-config.json" file, but sample app doesn't seem to have the most common use case.
I assume don't need a self-hosted bot just to launch my app?