This gem is your Rails app's payment model.

Add in your application Gemfile:

gem 'grape-forgery_protection'

To release a new version, update the CHANGELOG.md and change the version number in lib/grape/forgery_protection/version.rb.

Then, the following command will add these two files, commit, tag with the version and push to github:

$ rake grape-forgery_protection_release

Finally, upload the new pkg/grape-forgery_protection-*.gem file to rubygems.

Thanks to @jandudulski for its gist.