How to get the Facebook user id using the access token

Question

I have a Facebook desktop application and am using the Graph API. I am able to get the access token, but after that is done - I don\'t know how to get the user\'s ID.

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Answer 1

in FacebookSDK v2.1 (I can't check older version). We have

NSString *currentUserFBID = [FBSession activeSession].accessTokenData.userID;

However according to the comment in FacebookSDK

@discussion This may not be populated for login behaviours such as the iOS system account.

So may be you should check if it is available, and then whether use it, or call the request to get the user id