How to Build a Price Monitoring Bot Using Python and Telegram

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A tutorial published on DEV Community walks developers through creating an automated price monitoring bot using Python and the Telegram messaging platform. The bot is designed to track product prices on websites and notify users via Telegram whenever a price drop is detected. Developers are guided to set up a Telegram bot through BotFather, obtain an API token, and install required Python libraries including python-telegram-bot, requests, and BeautifulSoup4. The bot works by sending HTTP requests to product pages, parsing the HTML to extract price data, and comparing it against previously recorded values. Sample code is provided throughout the tutorial to help developers assemble the full working bot step by step.

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