I am creating a facebook application which can be added to a facebook fan page as custom tab. In the application setting I can see “Deauthorize Callback” which sends a signed request with page details when a user removes application from a page to the specified URL. Is there an option to specify an authorize callback URL which receives a request with page details when user first installs the application to the page.
Please help.
Thanks in advance.
Once upon a time, there was an authorize callback. So, your question is perfectly reasonable.
Facebook has removed it from the app settings form. So probably it is gone for good, but I have not seen any “official” word on the matter. (i.e. zero heads up that the feature is going away.)
You’ll still find the property, authorize_url, on the wildly out-of-date application properties page. But its anybody’s guess whether they will continue to call that callback, if you happened to set it before it was removed from the form.