Simple Octoprint PSU Control script to toggle a switch in Home Assistant

.ha

HA_HOST=http://myhomeassistant:8123
HA_TOKEN=long lived token
HA_SWITCH=entity_id

psu_switch.sh

#!/bin/bash

source $(dirname $0)/.ha
HA_BODY="{\"entity_id\": \"${HA_SWITCH}\"}"

case "$1" in
    on)
        curl -s -X POST -H "Authorization: Bearer ${HA_TOKEN}" \
          -H "Content-Type: application/json" \
          -d "$HA_BODY" \
          "${HA_HOST}/api/services/switch/turn_on" > /dev/null
        ;;
    off)
        curl -s -X POST -H "Authorization: Bearer ${HA_TOKEN}" \
          -H "Content-Type: application/json" \
          -d "$HA_BODY" \
          "${HA_HOST}/api/services/switch/turn_off" > /dev/null
        ;;
    status)
        curl -s -X GET -H "Authorization: Bearer ${HA_TOKEN}" \
          -H "Content-Type: application/json" \
          "${HA_HOST}/api/states/${HA_SWITCH}" | grep '"state": "on"'
        exit $?
        ;;
    *)
        echo "Usage $0 on|off|status"
        exit 1
esac