No response code sent to Whatsapp, causing duplicate messages.

[markns]

Hey team,

I've been looking into an issue where typing indicators get removed before the 25 second timer has expired (and before a reply is sent), and have realised it happens when I receive a duplicate message.

So I was checking the logs in more depth, and I realised that a status code is not being returned to whatsapp for the first HTTP request.

For example, in these ngrok logs, the update at 17:14:42 doesn't return with a status code, so Whatsapp send the same update again at 17:15:07, at which point the typing indicator disappears...

So I guess the root issue is why there's no response for the first update.

I'm using pywa 3.8.0 with async.

Any ideas what to check? Thanks in advance 🙏