gistfile1.rb

# config/initializers/omnicontacts.rb 

Rails.application.middleware.use OmniContacts::Builder do
  importer :live, 'client_id', 'client_secret', {redirect_path: "/invitations/live/contact_callback"}
end


class OmniContacts::Importer::Live < OmniContacts::Importer::Hotmail
  def initialize *args
    super *args
    @auth_host = 'login.live.com' #"oauth.live.com"
    @authorize_path = '/oauth20_authorize.srf' #"/authorize"
    @scope = 'wl.basic, wl.contacts_emails' #"wl.signin, wl.basic, wl.birthday , wl.emails ,wl.contacts_birthday , wl.contacts_photos"
    @auth_token_path = "/oauth20_token.srf"
    @contacts_host = "apis.live.net"
    @contacts_path = "/v5.0/me/contacts"
    @self_path = "/v5.0/me"
  end
  
  def contacts_from_response response_as_json
     response = JSON.parse(response_as_json)
     contacts = []
     response['data'].each do |entry|
       # creating nil fields to keep the fields consistent across other networks
       contact = {:id => nil, :first_name => nil, :last_name => nil, :name => nil, :email => nil, :gender => nil, :birthday => nil, :profile_picture=> nil, :relation => nil}
       contact[:id] = entry['user_id'] ? entry['user_id'] : entry['id']
       if valid_email? entry["emails"]["preferred"]
         contact[:email] = entry["emails"]["preferred"]
         contact[:first_name], contact[:last_name] = email_to_name(contact[:email])
       else
         contact[:first_name] = normalize_name(entry['first_name'])
         contact[:last_name] = normalize_name(entry['last_name'])
       end
       contact[:name] = normalize_name(entry['name'])
       contact[:birthday] = birthday_format(entry['birth_month'], entry['birth_day'], entry['birth_year'])
       contact[:gender] = entry['gender']
       contact[:profile_picture] = 'https://apis.live.net/v5.0/' + entry['user_id'] + '/picture' if entry['user_id']
       contacts << contact if contact[:name] || contact[:first_name]
     end
     contacts
   end
end

thanks, it helped me