SlackTrello
The slack_trello gem makes it easy to parse POST requests sent to a Ruby application by the Slack API. The gem is geared towards making Trello cards based on Slack POST requests, but the core modules and classes are generic and can be repourposed for other tasks as well.
Installation
Add this line to your application's Gemfile:
gem 'slack_trello'
And then execute:
$ bundle
Or install it yourself as:
$ gem install slack_trello
Usage
The slack-responder Rails application includes the slack_trello gem and demonstrates how a Rails application that responds to Slack POST requests can be set up. Cloning the slack-responder application is the easiest way to get up-and-running with the slack_trello gem.