eatsmartの日々の記録から摂取カロリーを取得する

esma.rb

require 'mechanize'
require 'date'

class EatSmart
  LOGIN_URL = 'https://www.eatsmart.jp/do/login/index'

  # 日々の記録 末尾に'YYYYYMMDD/'が必要
  DAY_URL   = 'https://www.eatsmart.jp/do/esmanote/day/param/ymd/'

  def initialize
    @agent = Mechanize.new
  end

  def login(email, password)
    page = @agent.get(LOGIN_URL)
    mypage = page.form_with(name: 'login.LoginBean') do |form|
      form.mailaddress = email
      form.password    = password
    end.submit

    mypage.search('title').text.include?('あなたの')
  end

  def getcal(yyyymmdd)
    page = @agent.get(DAY_URL + yyyymmdd + '/')
    page.css('html body div#page div#container div#contents div#main div#oneday.contents div.left div#calIn.content div.title02 p.text').text
  end
end

easma = EatSmart.new
easma.login('mail@example.com', 'password')
puts easma.getcal(Time.now.strftime('%Y%m%d'))