Question

Our iOS app sends User-to-user requests to invite friends using the FB Request Dialog. The invited fb users get a notification showing the request. When they click the request they land at the following URL:

www.our_url.com/?request_id=XXXX&ref=notif&app_request_type=user_to_user&code=A_LONG_STRING/

I was unable to find the official documentation on how to handle this URL and the definitions of the GET parameters.

request_id is clear but what exactly is the code parameter?

Is it possible to set another URL for this callback? I tried setting redirect_uri in the parameters to [facebook dialog:@"apprequests" andParams:params andDelegate:self] but that didn’t change anything.

Thanks a lot!

Answer 1

For future reference:

• The code parameter is nothing but the oauth code parameter as discussed here:
  https://developers.facebook.com/docs/howtos/login/server-side-login/#step6
• The callback URL corresponds to the URL given in the app settings under the section Website with Facebook Login

Hope this helps somebody…