curl --location --request GET 'https://slack.com/api/chat.getPermalink?token=&channel=&message_ts='
{
"channel": "C1H9RESGA",
"ok": true,
"permalink": "https://ghostbusters.slack.com/archives/C1H9RESGA/p135854651500008"
}
none
ts
value, uniquely identifying it within a channel