# File lib/bigbluebutton.rb, line 120
    def send_api_request(method, data = {})
      url = get_url(method, data)
      res = Net::HTTP.get_response(URI.parse(url))
      puts "BigBlueButtonAPI: URL=#{url}" if @debug
      puts "BigBlueButtonAPI: URL response=#{res.body}" if @debug
      doc = REXML::Document.new(res.body)
      return_code = doc.root.get_text('/response/returncode')
      message = doc.root.get_text('/response/message')
      unless return_code == "SUCCESS"
        raise BigBlueButtonException.new("BigBlueButton error: #{message}")
      end
      doc
    end