telegram-safecoin-validator-alert-bot

Send an alert to your own Telegram channel if your SafeCoin validator is delinquent

Bash script to send message to Telegram with Telegram Bot

Create telegram bot

To send a message to Telegram group or channel, you should first create your own bot. Just open Telegram, find @BotFather, start a conversation with the bot and type /start. Then follow instructions to create bot and get token to access the HTTP API.

1. find @BotFather in Telegram
2. start chat with the bot
3. type /start to get the available commands
4. type /newbot to create a new bot
5. choose a name for your new bot
6. choose a username for your bot, it must end with bot . This will be later on your link. Example: https://t.me/yournewcreatedbot/
7. Done. You will get now your own token to access the HTTP API. Please keep it safe and secure. You will need it later for the bash script

Create a new Channel and add your already new created bot as member in Telegram

1. create a new channel in Telegram

!! set the channel to public first. After the bot has been added and set as admin, you can set the channel back to private.

2. add your bot as member
3. provide admin access rights to your bot
4. set your channel back to private
5. In order to get channel ID post any message to the channel
6. open following link to get your channel ID https://api.telegram.org/botYOURTOKEN/getUpdates . Replace YOURTOKEN with your new token
7. example output. Write down your channel ID you will need it later on

{
  "ok":true,
  "result": [
    {
      "update_id":421,
      "channel_post": {
        "message_id":34,
        "chat": {
          "id":-8547443533, // this is your channel id !! it includes the - as well !! -> -8547443533
          "title":"Notifications",
          "type":"channel"
        },
        "date":1637486719,
        "text":"my fist channel message"
      }
    }
  ]
}

Script to send message

Here you will need your channel ID and the token

1. Simple test curl 'https://api.telegram.org/botYourToken/sendMessage?chat_id=channel_id&text=test message'
2. create the bash script. (Thanks to phael for the hint)
3. cd ~/
4. nano telegram-notification.sh customize the script according to your identity or vote account

#!/bin/bash
#you can use here your Identity or Voteaccount
validator=AAFXHYrWu6gM8vL2y4gBQHavVFN7EqWY25SrBkwAxUnh
DELIQUENT=`~/Safecoin/target/release/./safecoin validators | grep $validator | grep '!' | wc -l`

if [ $DELIQUENT == 1 ];
    then
        echo "validator is deliquent!"

curl 'https://api.telegram.org/botYOURTOKEN/sendMessage?chat_id=CHANNELID&text='$validator is delinquent''

        # SEND MAIL OR DO OTHER NOTIFICATIONS HERE
    else
        echo "validator is running"
fi

5. chmod +x telegram-notification.sh
6. test it with ./telegram-notification.sh
7. you should get now a notification in your private Telegram channel

crontab setup for an automatic check in the background

1. create crontab to check regularly if your validator is running crontab -e

assuming your script is inside your home folder~/

2. add following line to your crontab * * * * * cd ~/ && ./telegram-notification.sh

this will check every minute if your validator is running and if deliquent send a message to your private Telegram channel

Questions? Join SafeCoin Telegram https://t.me/joinchat/HCqlLxEEFR_SQPd9VjSpBw or SafeCoin Discord https://discord.gg/c6hWAkQ

SafeCoin realtime monitoring https://safecoin.safegw.net/