foo.rb

require 'rubygems'
require 'oauth'

consumer = OAuth::Consumer.new 'ds1UTK4sT3R5MVhYIYV6w', 'RtqyirueGdzUt0tpbuuYnZAxUv71E3xrxxpfnkxt4', { :site => 'http://hireme.goplanapp.com' }

request = consumer.get_request_token

puts request.authorize_url
sleep 20 # give us time to authenticate

access = request.get_access_token

# create a document on project 'hireme' (project exists)
puts access.post('http://hireme.goplanapp.com/hireme/api/documents/create', { 
  "file['title']" => 'hosts',
  "file['uploaded_data']" => IO.read('/etc/hosts')
}).inspect

# #<Net::HTTPForbidden 403 Forbidden readbody=true>