Hi,
To get Facebook Canvas Payment working in full one needs to put there the server callback and (optionally) a dynamic pricing callback. Any Wall Offer (SupersonicAds in my case) needs two REST URL (grant and deny) to tell our backend what the user just bought... and I really can't find any documentation about how to manage this.
This is one of the callbacks from Supersonic Ads:
http://host.mydomain.com/grant.php?userId=[USER_ID]&eventId= [EVENT_ID]&rewards=[REWARDS]&item=[ITEM_NAME]
So basically: how can I do that on Sherpz?
Thanks,
Pino