Telegram bot that monitors a block/snippet of a webpage

Usage no npm install needed!

<script type="module">
  import aantonTelegramWebpageMonitorBot from 'https://cdn.skypack.dev/@aanton/telegram-webpage-monitor-bot';



Monitors a webpage detecting when a custom block/snippet has changed & sends a message to a Telegram chat using a Telegram bot.


npm install @aanton/telegram-webpage-monitor-bot


const path = require('path');
const cheerio = require('cheerio');
const monitorWebpage = require('@aanton/telegram-webpage-monitor-bot');

  name: 'first-link-monitor',
  url: 'https://mydomain.com',
  storage: path.resolve(__dirname + '/.storage'),
  telegramBotToken: ...,
  telegramChatId: ...,
  telegramSendMessageOptions: {},
  extractSnippet: function(html) {
    const $ = cheerio.load(html);
    return $("a[href*='www.mydomain.com']").first().attr("href");

Configuration parameters

  • name: Unique name, used in logs
  • url: Webpage URL to monitor
  • url: Local storage to save the block/snippet extracted from the webpage using the extractSnippet function
  • telegramBotToken: Telegram bot token
  • telegramChatId: Telegram chat identifier
    • It can be a private conversation with the bot (you must send previously a message to the bot), a group conversation (the bot must be a member) or a channel conversation (the bot must be an administrator member)
    • The chat identifier can be obtained using @ChannelIdBot
  • telegramSendMessageOptions: Optional telegram message options
    • Use it for enable HTML/Markdown format, disable links preview or disable notifications
  • extractSnippet: Function that extracts the snippet from the webpage HTML