This gem contains the Ungc strategy for OmniAuth
First start by adding this gem to your Gemfile:
gem 'omniauth-ungc'Next, tell OmniAuth about this provider. For a Rails app, your config/initializers/omniauth.rb file should look like this:
Rails.application.config.middleware.use OmniAuth::Builder do
provider :ungc, "APP_ID", "APP_SECRET"
endReplace "APP_ID" and "APP_SECRET" with the appropriate values you obtained from the Ungc.