PAY.JP for Ruby
You don't need this source code unless you want to modify the gem. If you just want to use the Payjp Ruby bindings, you should run:
gem install payjp
If you want to build the gem from source:
gem build payjp.gemspec
Ruby 2.0.0 or above.
If you are installing via bundler, you should be sure to use the https rubygems source in your Gemfile, as any gems fetched over http could potentially be compromised in transit and alter the code of gems fetched securely over https:
source 'https://rubygems.org' gem 'rails' gem 'payjp'
Test cases can be run with: `bundle exec rake test`