Preventing message backlog spam in Aiogram 3 Telegram bot after restart

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1

Hey everyone! I’m new to Python and Aiogram 3. I’ve got this Telegram bot that’s giving me a headache. When it crashes and users keep sending messages, it goes crazy once I restart it. It starts replying to all the commands it missed while it was down.

Is there a way to make the bot ignore those old messages? I want it to have a fresh start every time I turn it on. Like it forgets everything that happened while it was offline.

Any tips or tricks would be super helpful! I’ve been scratching my head over this for a while now. Thanks in advance for your help!

2

I’ve encountered this issue before, and there’s a straightforward solution. In Aiogram 3, you can use the ‘skip_updates’ parameter when initializing your bot. Set it to True like this:

bot = Bot(token=YOUR_BOT_TOKEN, parse_mode=‘HTML’)
dp = Dispatcher(skip_updates=True)

This tells the bot to ignore any messages it received while offline. It’ll only respond to new messages after startup.

Another approach is to implement a timeout for old messages. You can check the message timestamp and ignore anything older than, say, 5 minutes since your bot restarted.

Remember to handle exceptions properly to prevent frequent crashes. Good luck with your bot!

3

yo man, i feel ur pain. heres a quick fix - use offset parameter when polling:

bot.get_updates(offset=bot.last_update_id + 1)

this skips old msgs. also, set a timeout:

bot.get_updates(timeout=30)

stops bot from goin nuts with old stuff. hope this helps bro!

4

As someone who’s been through this exact situation, I can totally relate to your frustration. Here’s what worked for me:

Instead of using skip_updates, I implemented a custom solution. I store the timestamp of the last processed message in a file or database. When the bot restarts, I fetch this timestamp and only process messages that came after it.

Here’s a rough idea of how to do it:

  1. Save the timestamp of each processed message.
  2. On startup, load the last saved timestamp.
  3. In your message handler, compare the incoming message time with the loaded timestamp.
  4. Only process messages newer than the loaded timestamp.

This approach gives you more control and flexibility. It allows the bot to catch up on important messages if needed, while still avoiding the spam problem.

Just remember to update your timestamp regularly as you process messages. It’s a bit more work than skip_updates, but I found it more reliable in the long run.