Send a slack notification

notify_slack.sh

#!/bin/bash

set -eu

### Incoming WebHooks URL
WEBHOOKURL="https://hooks.slack.com/services/FILL_YOUR_WEBHOOKURL"

### channel
CHANNEL=${CHANNEL:-"#notifications"}

### sender name
BOTNAME=${BOTNAME:-"notifyme-bot"}
# BOTNAME=${BOTNAME:-"${HOSTNAME}"}

### slack icon
FACEICON=${FACEICON:-":ghost:"}   

### user_id
USERID="Uxxxxxxxx" # User your user_id (not user name)

#################### Config payload ####################

PAYLOAD=`cat << EOS
    payload={
        "channel": "${CHANNEL}",
        "username": "${BOTNAME}",
        "text": "Hey <@${USERID}> your code just finished running",
        "icon_emoji": "${FACEICON}"
    }
EOS`

# Send the payload
curl -X POST --data-urlencode "$PAYLOAD" "${WEBHOOKURL}"