Monitoring

sample alert

This simple script will monitor your node and send alert to your telegram chat/group when your bioauth is about to end or already in inactive state.

Installation

Prepare Telegram API Key

go to Telegram, search for @BotFather

type in /start to interact with @BotFather and create your bot with /newbot command

after that type /token to get your API Key

Install script

Copy and save this script below with .sh format in your Humanode server

#!/bin/bash
telegram_token='<YOUR_API_KEY>'
telegram_group='<YOUR_TELEGRAM_GROUP>'
telegram_user_tag="@<YOUR_TELEGRAM_USERNAME>"
# Stop editing
# Script starts here
server_ip=$(curl -s https://api.ipify.org)
telegram_bot="https://api.telegram.org/bot${telegram_token}/sendMessage"
status=$(curl -s http://127.0.0.1:9933 -X POST -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","method":"bioauth_status","params":[],"id":1}' | jq '.result')

if [ "$(echo "$status" | tr '[:upper:]' '[:lower:]')" == "$(echo '"inactive"' | tr '[:upper:]' '[:lower:]')" ]; then
  message="🚨Your Humanode (${server_ip}) is not active, please proceed to do re-authentication ${telegram_user_tag}"
  else
  current_timestamp=$(date +%s)
  expires_at=$(curl -s http://127.0.0.1:9933 -X POST -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","method":"bioauth_status","params":[],"id":1}' | jq '.result.Active.expires_at')
  difference=$(( (expires_at / 1000 - current_timestamp) / 60 ))

  if (( difference > 25 && difference < 31 )); then
    message="🟡Your Humanode (${server_ip}) will be deactivated in 30 minutes, please prepare for re-authentication ${telegram_user_tag}"
  elif (( difference > 0 && difference < 6 )); then
    message="🔴Your Humanode (${server_ip}) will be deactivated in 5 minutes, please prepare for re-authentication ${telegram_user_tag}"
  else
    message="NULL"
  fi
fi
if [ "$message" != "NULL" ]; then
  curl -X POST -H "Content-Type:multipart/form-data" -F chat_id=${telegram_group} -F text="${message}" ${telegram_bot}
fi

Replace <YOUR_API_KEY> with the key you get from previous step

For telegram_group you can change it to your own chat/group.

Replace telegram_user_tag with your own username

After that, don't forget to give execute permission by using this command below

chmod ug+x /path/to/your/script.sh

Set cronjob

You need to install the cronjob to make this alert work.

Open cron editor by executing this:

crontab -e

After that, put this line into the last line of crontab and then save it

*/5 * * * * /path/to/your/script.sh

This cron will run the script every 5 minutes

Remember to replace /path/to/your/script.sh to your actual script location