Here’s my situation: I have a facebook app that needs to do major data processing, and I need it done on another server (basically a subdomain). However, I do not know how to access a user’s “data” from the other server, unless the user authenticates with two apps.
Is there a way to prompt the user for permissions to allow their data to be processed on another server?
If the second server is a subdomain of your registered namespace, you should be able to use your app credentials on that machine as well. Facebook doesn’t care, as long as you’re not sharing your users’ data with third parties.