example_omniauth_response.rb

def omniauth_github_response_for(user)
  OmniAuth::AuthHash.new({
    provider: 'facebook',
    uid: user.uid,
    info: {
      name: user.name,
      nickname: user.nickname,
      image: user.image_url,
      urls: {"Facebook" => user.facebook_url}
    }
  })
end