wikipedia.rb

require 'rest_client'
require 'json'
require 'active_support/all'

def wiki(action, params={})
  params.merge!(:action => action, :format => 'json')
  headers = {"User-Agent" => "Ruby Wikipedia Client", "Accept" => "application/json"}
  RestClient.get("http://en.wikipedia.org/w/api.php?#{params.to_query}", headers) do |response|
    JSON.parse(response.body)
  end
end

# wiki("opensearch", :search => "beat", :limit => 10)