How to Create and Use a Telegram Filter Bot

Getting Started with Your Telegram Filter Bot

So, you've decided to create a Telegram filter bot. That's fantastic! These bots can help manage your group chats by filtering messages based on certain keywords or phrases. Let's dive in and make this process as easy and joyful as possible.

Step 1: Setting Up the Bot

First things first, you need to create a bot on Telegram. Open Telegram and search for the BotFather. This is the official bot that helps you create new bots and manage existing ones.

• Start a chat with the BotFather and type /start.
• Next, type /newbot to create a new bot.
• Follow the instructions to name your bot and create a unique username for it.
• After completing these steps, you’ll receive a token. Keep this token safe; you’ll need it later.

Step 2: Setting Up Your Development Environment

Now, you need a place to write your bot's code. You can use any code editor you like, but Visual Studio Code is a great choice because it's free and has a lot of useful extensions.

• Install Python from the official website.
• Open your terminal or command prompt and type pip install python-telegram-bot to install the necessary library.

Step 3: Writing the Bot's Code

This is where the magic happens! Let’s write some basic code to get your bot up and running.

import telegram
from telegram.ext import Updater, CommandHandler, MessageHandler, Filters

def start(update, context):
    context.bot.send_message(chat_id=update.effective_chat.id, text="Hello! I am your filter bot. How can I help you today?")

def filter_message(update, context):
    keywords = ['spam', 'advertisement', 'ban']
    message_text = update.message.text.lower()
    if any(keyword in message_text for keyword in keywords):
        context.bot.delete_message(chat_id=update.effective_chat.id, message_id=update.message.message_id)
    else:
        context.bot.send_message(chat_id=update.effective_chat.id, text="Message is clean!")

def main():
    updater = Updater('YOUR_TOKEN_HERE', use_context=True)
    dp = updater.dispatcher
    dp.add_handler(CommandHandler('start', start))
    dp.add_handler(MessageHandler(Filters.text & ~Filters.command, filter_message))
    updater.start_polling()
    updater.idle()

if __name__ == '__main__':
    main()

Replace YOUR_TOKEN_HERE with the token you received from BotFather. This code sets up a basic bot that deletes messages containing the keywords 'spam', 'advertisement', or 'ban'.

Step 4: Running Your Bot

Save your code and open your terminal. Navigate to the directory where your code is saved and type python your_bot_script.py. Your bot should now be running!

Step 5: Adding More Features

Once your basic bot is running, you can add more features to make it even more useful. For example, you could add commands to whitelist certain users or to add more keywords dynamically.

• To add a whitelist command, create a new function and add it as a CommandHandler.
• To add dynamic keywords, you can modify the filter_message function to read from a list that users can update via commands.

Conclusion

And there you have it! You've created a Telegram filter bot. This bot can help manage your group chats and ensure that unwanted messages are filtered out. Keep experimenting and adding new features to make your bot even better. Happy coding! 😊