iTunes-ranking-tweet.rb

require 'rubygems'
require 'feed-normalizer'
require 'open-uri'
require 'twitter'

client = Twitter::REST::Client.new do |config|
    config.consumer_key         = ENV['TWITTER_CONSUMER_KEY']
    config.consumer_secret      = ENV['TWITTER_CONSUMER_SECRET']
    config.access_token         = ENV['TWITTER_ACCESS_TOKEN']
    config.access_token_secret  = ENV['TWITTER_ACCESS_TOKEN_SECRET']
end

uri_jazz_song_rank = 'https://itunes.apple.com/jp/rss/topsongs/limit=100/genre=11/xml'

feed = FeedNormalizer::FeedNormalizer.parse open(uri_jazz_song_rank)

text = ""
itunes_url = "https://itunes.apple.com/jp/album/rakurai/id887425587?i=887425634"

i = 1
feed.entries.each { |e|
    if e.title == "rakurai - YAPANI!"
      text = "現在 iTunes Jazz チャート #{i}位 " + e.title + " #{itunes_url}" + " updated_at:" + e.last_updated.strftime("%Y-%m-%d %H:%M:%S %Z")
      client.update(text)
      break
    end
    i+=1
}