Recently Facebook made a change to their authorization structure that no longer returns the ID of the authenticating user in their initial response. As a result you will not be able to use the user’s ID until you have made a request with the returned token for the users info.
Here is a short example of how this works.
SI.AuthenticateUser("http://localhost:55990/default.aspx", New SessionInfo.PermissionsEnum() {SessionInfo.PermissionsEnum.user_about_me, SessionInfo.PermissionsEnum.email, SessionInfo.PermissionsEnum.read_stream})
Dim UR = SI.ReadFacebooAuthResponse
If UR.Authenticated Then
Response.Write("Success" & "<br>")
Response.Write(UR.UserID & "<br>") 'no id present
Dim RQ = New Functions.Requests(SI)
Dim U = RQ.GetUserInfo 'Request the userinfo object
Response.Write(U.id & "<br>") 'id is now present
Response.Write(U.username & "<br>")
Else
Response.Write("Fail" & "<br>")
Response.Write(UR.Access_Token & "<br>") ‘no token found
Response.Write(UR.Error & "<br>")
Response.Write(UR.Error_Description & "<br>")
Response.Write(UR.Error_Reason & "<br>")
End If
We will follow up with facebook to find out why this change was made and keep you posted if and when they decide to revert back to including the ID in the original auth request.
