Redmine notifier to Slack

notifier.rb

require 'dotenv'
Dotenv.load

require 'slack-notifier'
require 'json'
require 'redmine-ruby'

module Redmine
  class Issue < Base
    collection_path 'issues.xml'
    resource_path 'issues/:id.xml'
    scope :recent_updated, -> { where(sort: 'updated_on:desc') }
  end
end

notifier = Slack::Notifier.new ENV['SLACK_WEBHOOK_URL']

redmine = Redmine::Client.new(ENV['REDMINE_URL'], ENV['REDMINE_TOKEN'])
notifier.ping redmine.issues.recent_updated.first.subject