20. Slack a.k.a. モダンチャットサービス
curl -X POST --data-urlencode 'payload={"channel":
"#general", "username": "webhookbot", "text": "This is
posted to #general and comes from a bot named
webhookbot.", "icon_emoji": ":ghost:"}' https://
example.slack.com/services/hooks/incoming-webhook?
token=abcdefghijklmn1234567890
curlでWebHoooksにポストするサンプル