im.kayac.com

kayac.rb

# -*- coding: utf-8 -*-
require "net/http"
require "uri"

uri = URI.parse("http://im.kayac.com/api/post/USERNAME")
Net::HTTP.start(uri.host, uri.port){|http|
  request = Net::HTTP::Post.new(uri.path)
  request.set_form_data({:message=>"MESSAGE"})
  response = http.request(request)
}