How to reset pending updates counter in Telegram Bot API

Struggling with accumulated pending updates in my Telegram bot

I’m having trouble with my test bot that has accumulated thousands of pending updates. When I check the webhook status using the API, I get this response:

{
  "ok": true,
  "result": {
    "url": "https://myserver.example.com/bot/webhook",
    "has_custom_certificate": false,
    "pending_update_count": 4823,
    "last_error_date": 1482910173,
    "last_error_message": "Wrong response from the webhook: 500 Internal Server Error",
    "max_connections": 40
  }
}

The pending count keeps growing rapidly even though nobody is using this bot. I think my webhook handler is throwing errors and causing updates to pile up.

I tried removing the webhook URL but the pending updates are still there. What’s the proper way to flush all these queued updates? Also, why am I getting the 500 Internal Server Error from my webhook endpoint?

Any help would be appreciated!

I encountered a similar problem concerning pending updates in my bot. The 500 errors you’re experiencing indicate that Telegram’s server is unable to successfully process the updates, which leads to them being resent. To alleviate the backlog, perform a getUpdates with an offset set higher than your current pending updates, for example, 5500. This will disregard all accumulated updates. Ensure to remove your current webhook first using deleteWebhook. Regarding the 500 error, check your server logs for underlying issues such as missing dependencies or timeouts, as resolving these is crucial for restoring functionality.

The 500 error is what’s making your updates pile up. Telegram keeps retrying when your webhook doesn’t return 200 OK, which creates a snowball effect. I’ve faced a similar situation when my database connection kept failing. To resolve this, focus on fixing the 500 error first. Review your server logs to identify the issue. For the backlog, use getUpdates with a high offset, such as 5000, to skip all pending updates. Make sure to delete the existing webhook first to avoid conflicts between polling and webhook modes. After clearing the queue and fixing the code, you can set the webhook back up and monitor the pending count to ensure it remains zero.

yup, what you can do is use getUpdates with an offset more than your pending count, like 4824. that way it’ll mark the earlier updates as handled. had the same issue and it worked for me!