Omniauth facebook email id not getting in rails?

Omniauth facebook email id not getting in rails?

Better way use the koala api get the email address

Steps

1)gem "koala"

2)bundle install

3)Get the request.env['omniauth.auth']

3)@graph = Koala::Facebook::API.new(request.env['omniauth.auth']['credentials']['token'])

4)user_email = @graph.get_object("me?fields=email")