koala - How can I access email id's of my facebook friends -

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i using koala(ruby gem/facebook api).

i want access email list of facebook friend's.

contacts (mac app) can access friend's email id , mobile phone no's.

how can that???

i don't particularly program facebook api. wouldn't think provide direct access information not published. sights such google (gmail) , yahoo provide email addresses users associated username.

facebook also. use public.username@facebook.com, person's username@yahoo.com or username@gmail.com.


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