Facebook API call with email to return UID -

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I am trying to make a simple API call with Facebook, to return the e-mail given by the user to the UID for.

Thank you! :) Apart from displaying the user I am not doing anything else with the UID, so I do not really believe that it is worth their certification.

I'm pretty sure that you have to be a UID to get any information about the user. Email hashes or proxy-related emails are not indexed columns (see User function table). Although getting information about the current log-in user is very easy. The Facebook Javascript API / Library is a good example. 

  FB_RequireFeatures (["API"], function () {// API API key and // site relative pass API Client Object URL to xd_receiver.htm FB.Facebook.init ( Api_key, channel_path); var api = FB.Facebook.apiClient; api.get_session () .UID;});


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