Code to send an SMS using the Twilio API in Ruby. Written by Andrés Corvetto (not me, Rahim Sonawalla). Full blog post here: http://www.twilio.com/blog/2011/05/andres-corvetto-wins-our-twiliohardware-developer-contest.html

send.rb

require 'twiliolib'

# Twilio REST API version
API_VERSION = '2010-04-01'

# Twilio AccountSid and AuthToken
ACCOUNT_SID = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
ACCOUNT_TOKEN = 'yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy'

FROM_ID = 'xxx-xxx-xxx';
CALLER_ID = 'yyy-yyy-yyy';

account = Twilio::RestAccount.new(ACCOUNT_SID, ACCOUNT_TOKEN)
body= 'Intruder alert! http://10.10.10.10/alert/'+ARGV[0]

puts 'Sending SMS:' + body

d = {
    'From' => FROM_ID,
    'To' => CALLER_ID,
    'Body' => body,
}
resp = account.request("/#{API_VERSION}/Accounts/#{ACCOUNT_SID}/SMS/Messages", 'POST', d)

Hi, Unfortunately this code interface has been deprecated with version 3 of the twilio-ruby gem. The good news is the new interface is much simpler.

Here is a working example using the new interface:

    require 'rubygems' # not necessary with ruby 1.9 but included for completeness
    require 'twilio-ruby'

    # put your own credentials here
    account_sid = 'ACxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
    auth_token = 'yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy'

    # set up a client to talk to the Twilio REST API
    @client = Twilio::REST::Client.new account_sid, auth_token

    @client.account.sms.messages.create(
      :from => '+14159341234',
      :to => '+16105557069',
      :body => 'Intruder alert! http://10.10.10.10/alert/' + ARGV[0]
    )