my_barchart_job.rb

source = 'http://some.remote.host/barchart.xml'

labels = ['January', 'February', 'March', 'April', 'May', 'June', 'July']

SCHEDULER.every '10s', :first_in => 0 do |job|

  send_event('barchart', {
    data: {
      labels: labels,
      datasets: [
        {
          label: 'My First dataset',
          fillColor: 'rgba(220,220,220,0.5)',
          strokeColor: 'rgba(220,220,220,0.8)',
          highlightFill: 'rgba(220,220,220,0.75)',
          highlightStroke: 'rgba(220,220,220,1)',
          data: Array.new(labels.length) { rand(40..80) },
        }, {
          label: 'My Second dataset',
          fillColor: 'rgba(151,187,205,0.5)',
          strokeColor: 'rgba(151,187,205,0.8)',
          highlightFill: 'rgba(151,187,205,0.75)',
          highlightStroke: 'rgba(151,187,205,1)',
          data: Array.new(labels.length) { rand(40..80) },
        }
      ]
    }
  })
end