to heroku app deploy

git push heroku master

heroku app log tail

 heroku logs --app [app_name] --tail

config setting

example:
heroku config:add webhook_url="https://hooks.slack.com/services/~~~~~"
heroku config:add username="maro"
heroku config:add channel="#randam"
heroku config:add iconemoji=":maro:"

Use case