This script polls the ScootNetworks API and sends a Twilio SMS when a scooter becomes available at a given garage. The script stops polling and exists after a scoot is found.

scoot.rb

# This script polls the ScootNetworks API and sends a Twilio SMS when a scooter
# becomes available at a given garage. The script stops polling and exists
# after a scoot is found.
#
# 1. Install requirements:
#
#    gem install twilio-ruby
#
# 2. Configure TWILIO_XXX vars below
#
# 3. Select a LOCATION_NAME below
#
# 4. Run on a server somewhere
#
#       ruby scoot.rb

require 'net/http'
require 'json'
require 'twilio-ruby'

TWILIO_FROM        = '+14155992671'
TWILIO_TO          = '+14155555555'
TWILIO_ACCOUNT_SID = 'XXXXXXXXXX'
TWILIO_AUTH_TOKEN  = 'XXXXXXXXXX'

LOCATION_NAME = 'Polk-Bush Garage'
#LOCATION_NAME = '5th and Mission'
#LOCATION_NAME = 'Caltrain'
#LOCATION_NAME = '16th and Mission'
#LOCATION_NAME = '1086 Folsom (Scoot HQ)'
#LOCATION_NAME = 'St. Mary's Square Garage'
#LOCATION_NAME = '21st and Valencia'

loop do
  puts "[#{Time.now}] Polling scoot"

  Net::HTTP.start('scootnetworksapp.herokuapp.com', 443, :use_ssl => true) do |http|
    response = http.get '/api/v1/locations.json'
    raise "Error: #{response.code}" unless response.code == '200'

    location = JSON.parse(response.body).find do |location|
      location['name'] == LOCATION_NAME
    end

    available_scooter_ids = location['available_scooter_ids']

    if !available_scooter_ids.empty?
      body = "Available at #{LOCATION_NAME}: "
      body << available_scooter_ids.collect{ |scooter_id|
        "##{scooter_id}"
      }.join(', ')

      puts body

      twilio = Twilio::REST::Client.new(TWILIO_ACCOUNT_SID, TWILIO_AUTH_TOKEN)

      twilio.account.sms.messages.create(
         :from => TWILIO_FROM, 
         :to => TWILIO_TO,
         :body => body)

      exit
    end
  end

  sleep 60
end