Cooperpress issues to item-based RSS

itemrss.rb

require 'open-uri'
require 'json'
require 'nokogiri'
require 'rss'

URL = "https://javascriptweekly.com/issues/latest.json"

issue_data = JSON.parse(open(URL).read)
issue = Nokogiri::HTML(issue_data['xml_body'])

rss = RSS::Maker.make("2.0") do |maker|
  maker.channel.title = "JavaScript Weekly"
  maker.channel.link = URL
  maker.channel.description = ""

  issue.css("item").each do |item|
    maker.items.new_item do |rss_item|
      rss_item.title = item.attr('title')
      rss_item.link = item.attr('url')
      rss_item.description = item.inner_html
    end
  end
end

puts rss