[TUTORIAL]⁠ Building a Telegram Bot in Python (Aiogram 3.x) with Redis Storage

[JackaL]

[TUTORIAL] Building a Telegram Bot in Python (Aiogram 3.x) with Redis Storage

The telebot (pyTelegramBotAPI) library is outdated and synchronous. For high-performance, asynchronous bots that handle thousands of users, you must use Aiogram 3.x paired with Redis for state management.

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The Core Setup (FSM with Redis):
First, install dependencies: pip install aiogram redis. Here is the boilerplate to connect your bot using Redis as the Finite State Machine (FSM) storage.

import asyncio
from aiogram import Bot, Dispatcher
from aiogram.fsm.storage.redis import RedisStorage
from redis.asyncio import Redis

TOKEN = "YOUR_TELEGRAM_BOT_TOKEN"

async def main():
    # Initialize Redis for fast in-memory user state storage
    redis = Redis(host='localhost', port=6379, db=0)
    storage = RedisStorage(redis=redis)
    
    bot = Bot(token=TOKEN, parse_mode="HTML")
    dp = Dispatcher(storage=storage)
    
    print("Bot is starting...")
    await dp.start_polling(bot)

if __name__ == "__main__":
    asyncio.run(main())