Job to get tram data for dashing

tramtracker.rb

require "rexml/document"

SCHEDULER.every '1m', :first_in => 0 do |job|
  stop_no = 1819
  url = URI.parse('http://ws.tramtracker.com.au/pidsservice/pids.asmx')
  request =Net::HTTP::Post.new(url.path)
  request.body = %Q{<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap12="http://www.w3.org/2003/05/soap-envelope">
  <soap12:Header>
    <PidsClientHeader xmlns="http://www.yarratrams.com.au/pidsservice/">
      <ClientGuid>391f09fd-3b98-44e0-b6cd-575ca2b97e2b</ClientGuid>
      <ClientType>IPHONEPID</ClientType>
      <ClientWebServiceVersion>6.4.0.0</ClientWebServiceVersion>
      <ClientVersion>1.5</ClientVersion>
      <OSVersion>7.0</OSVersion>
    </PidsClientHeader>
  </soap12:Header>
  <soap12:Body>
    <GetNextPredictedRoutesCollection xmlns="http://www.yarratrams.com.au/pidsservice/">
      <lowFloor>false</lowFloor>
      <stopNo>#{stop_no}</stopNo>
      <routeNo>0</routeNo>
    </GetNextPredictedRoutesCollection>
  </soap12:Body>
</soap12:Envelope>
}
  request.add_field("Content-Type", "application/soap+xml; charset=utf-8")
  response = Net::HTTP.start(url.host, url.port) {|http| http.request(request)}

  services = []
  doc = REXML::Document.new response.body
  REXML::XPath.each(doc, '//ToReturn').to_a.each do |toreturn|
    data = {}
    data[:value] = ((Time.parse(toreturn.elements['PredictedArrivalDateTime'].text).to_i - Time.now.to_i) / 60).to_s + " minutes"
    data[:label] = toreturn.elements['RouteNo'].text

    services << data
  end

  send_event('trams', {items: services })
end

Thanks Alan, thats about the simpliest/smallest example for the tramtracker api that I've seen so far, gotta love SOAP :-)

Nice Alan, particularly now I'm working on a tram line again... are there any docs about the tram tracker API out there or did you just sniff enough to get this working? I'd like to write a little Mac app that sends OS X Notifications when it's time for me to get the tram home!