This script waits for a new version and sends a local notification via AppleScript when it's available on the App Store

wait_for_ios_version.rb

#!/usr/bin/ruby

# It's so annoying that the 'Ready for Sale' status on AppStoreConnect doesn't mean that the app 
# is available for your users, since the cache might not have been invalidated yet.
# This is why I created this script to run and scrape the App Store page of an app and its currently live version. 
# Once the expected version is live, a local notification is sent. This can be easily extended to send a Slack message via a web hook.

require 'open-uri'
require 'nokogiri'

puts('Enter the app store url of the app. i.e. https://itunes.apple.com/us/app/slack/id618783545')
appstoreUrl = gets.chomp

puts('Enter the version number you are waiting for. i.e. "1.2.3"')
versionRaw = gets.chomp
expectedVersion = "Version " + versionRaw

# get webpage
appstorePage = Nokogiri::HTML(open(appstoreUrl))

# something like "Version 1.2.3"
currentVersion = appstorePage.css('.whats-new__latest__version').text

while currentVersion != expectedVersion  do
    $stdout.puts "Current version is #{currentVersion}. Still waiting for #{expectedVersion}. Trying again in 1 min"
    $stdout.flush
    sleep 60

    # get webpage
		appstorePage = Nokogiri::HTML(open(appstoreUrl))

		# something like "Version 1.2.3"
		currentVersion = appstorePage.css('.whats-new__latest__version').text
end

puts("Version #{expectedVersion} is live.")
system ( "osascript -e 'display notification \"Version #{expectedVersion} is now available on the App Store\" with title \"🚀\"'" )