Capybara-Script for scraping current financial balance at UTE (Uruguay's power company)

get_ute_balance.rb

#!/usr/bin/env ruby

require 'capybara'

user_id = ARGV.shift || 'YOUR_USERID'
password = ARGV.shift || 'YOUR_PASSWORD'

Capybara.run_server = false
Capybara.current_driver = :selenium
Capybara.app_host = 'https://autoservicio.ute.com.uy'

module Checks
  class Ute
    include Capybara::DSL

    def log_in(user_id, password)
      visit '/SelfService/SSvcController/login'
      fill_in 'userId', with: user_id
      fill_in 'password', with: password
      click_button 'Entrar'
    end

    def check_balance
      balance_label_text = 'Deuda Total:'

      within(:css, '#Content') do
        balance = find(:xpath, "//tr[td[@class='label']='#{balance_label_text}'][1]/td/following-sibling::td[1]")
        balance.text.delete!('$ ')
      end
    end
  end
end

ute = Checks::Ute.new
ute.log_in(user_id, password)
p ute.check_balance