vnstat-telegram

Please read the source code.

It was totally not maintainable.

Sample config file

{
  "interval": "300",
  "token": "<BOT_TOKEN>",
  "chat_id": "<CHAT_ID>",
  "listen": "<BIND_ADDRESS>",
  "admins": [
    "<ADMIN_ID>",
    "<ADMIN_ID>",
    "<ADMIN_ID>"
  ],
  "default_mode": "vs"
}