Webhookを受けて中身を表示するRuby製サーバーのサンプル

hook_server.rb

require 'webrick'
require 'json'

server = WEBrick::HTTPServer.new(Port: ARGV.first)
server.mount_proc '/' do |req, res|
  result = JSON.parse(req.body)
  action = result["action"]
  comment = result["comment"]
  username = comment["user"]["login"]
  content = comment["body"]
  puts action + "しました: " + username + " = " + content
end

trap 'INT' do server.shutdown end
server.start