pivotal_helper.rb

require 'net/http'
require 'rubygems'
require 'xmlsimple'

PROJECT_ID = something
TOKEN = something

HOST = "www.pivotaltracker.com"
URL = "/services/v2/projects/#{PROJECT_ID}/stories"

def new_story(params)
  xml = XmlSimple.xml_out(params).gsub(/<\/?opt>/,"")
  !(Net::HTTP.new(HOST).post(URL,xml,"X-TrackerToken" => token, "Content-type" => "application/xml").code =~ /^2\d+$/).nil?
end