Parse.Cloud.afterSave用于发送无法从Heroku服务器运行的推送通知

I did the migration, from Parse to Heroku and everything went smooth. At this point I didn't have any cloud code or push notifications set up on Parse. When I was done with the migration I begin to implement cloud code to handle push notification every time I save a new text message, but the Parse.Cloud.afterSave method is not running. I know main.js is working because if I implementI did the migration, from Parse to Heroku and e