I want to build a Facebook application that will be available only to those who have been invited to it or to a certain list of people (the list will be used for initialization).
How can I achieve that?
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I want to build a Facebook application that will be available only to those who have been invited to it or to a certain list of people (the list will be used for initialization).
How can I achieve that?
Depends what you mean by available. Anyone can install/authorise your application – all it means is that it’ll appear in their applications list, and that your application has more access to their profile.
However, whenever someone uses your application Facebook will send you their unique uid which you can then filter on within your own code. Store a list of uids that you consider “invited”, and only allow them access.
Probably the neatest way to do this is at the start of a session; the initial exchange between Facebook and your application involves Facebook sending your app a uid and authentication token, with which your app requests a session key – if you filter at that point and simply refuse to request a session key for any uid that’s not on your list, you can programmatically restrict access.