Display Email list of my FB friends

I am developing functionality for Listing email(those who shared) of my-friends(who ever is logged in) from FaceBook. Is it possible to do with Graph API ? I tried for login and then allowing permission开发者_Python百科 for my App. Without any change it sometimes works and stops. I don't know why? Also how can i get list of friend's email...?

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Facebook doesn't provide friend's email id through API.

Check Permissions of API it is not allowed

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Facebook APIs don’t expose email addresses of friends.

You can only get the logged-in user email with the explicitly permission email. All permissions: http://developers.facebook.com/docs/reference/api/permissions/

Workaround through Yahoo Contacts: http://www.labnol.org/internet/export-email-addresses-from-facebook/12970/