public-profile-url
デフォルトのフィールドとして次を指定できます。
Rails.application.config.middleware.use OmniAuth::Builder do
provider :linkedin, "consumer_key", "consumer_secret", :scope => 'r_fullprofile r_emailaddress r_network', :fields => ["id", "email-address", "first-name", "last-name", "headline", "industry", "picture-url", "public-profile-url", "location", "connections"]
end
次に、pengwynn LinkedIn gem を使用して、次のように URL にアクセスできます。
client = LinkedIn::Client.new
client.authorize_from_access("access_token", "access_token_secret")
client.profile(:fields => ["public-profile-url"])