Community supported Solidus Payment Method Gateways. It works as a wrapper for
active_merchant gateway. Note that for some gateways you might still need to
add another gem to your Gemfile to make it work. For example active_merchant
require braintree
but it doesn't include that gem on its gemspec. So you
need to manually add it to your rails app Gemfile.
In your Gemfile:
gem "solidus_gateway"
Then run from the command line:
bundle install
rails g solidus_gateway:install
Finally, make sure to restart your app. Navigate to Settings > Payments > Payment Methods in the admin panel. You should see a number of payment methods and the assigned provider for each. Click on the payment method you wish to change the provider, and you should see a number of options under the provider dropdown.
Then just run the following to automatically build a dummy app if necessary and run the tests:
bundle exec rake