speakerdeck-widget.rb

require "nokogiri"
require "open-uri"
require 'json'

url = "https://speakerdeck.com/#{params['username']}?page=#{params['page']}"

document = Nokogiri::HTML(open(url))

images = document.xpath('//div[@class="deck-preview-slide"]').map { |node| 'https:' + node.xpath('//@style').text.split(';')[1].split(':')[2].split('\'')[0] }
#titles = document.xpath('//div[@class="deck-preview-slide"]').map { |node| node.xpath('//div[@class="deck-title px-3 pt-3 text-truncate"]') }[0].map { |title| title.text.strip }
urls = document.xpath('//div[@class="row mt-4 mb-4"]')[0].xpath('//div[@class="col-12 col-md-6 col-lg-4 mb-5"]/a//@href').map { |url_path| "https://speakerdeck.com" + url_path }

{
  :page => #{params['page']},
  :images => images,
  :urls => urls
}