geckoboard_sample.rb

require 'net/http'
require 'json'

class GeckoboardClient
  def initialize(api_key)
    @api_key = api_key
  end

  def url(widget_key)
    "https://push.geckoboard.com/v1/send/#{widget_key}"
  end

  def push(widget_key, data)
    uri = URI(url(widget_key))
    payload = {
      api_key: @api_key,
      data: data
    }

    Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
      request = Net::HTTP::Post.new uri.request_uri
      request['Content-Type'] = 'application/json'
      request.body = payload.to_json

      http.request(request)
    end
  end
end

# sending data of number widget
gecko = GeckoboardClient.new('XXXXXXX')
gecko.push('YYYYYYYY',
  item: [{ value: 10 }]
)