Trello API webhook stopped working

Question

We've been creating Trello webhooks automatically via the API for the last few weeks with no problems. Now within the last day or two this has stopped working. We are now getting the following error - "did not return 200 status code, got 503".

I've checked and can confirm that our webhook callback url successfully returns a 200 code when making a HEAD request to it.

Would massively appreciate any help with this matter.

Iain Dooley · Answer

@DanielKeeble Usually when things go pear shaped like this I like to strip things back to the simplest possible case and test it.

For example can you set up a new URL that only returns 200 for a HEAD request and does nothing else, and if you do this does the webhook register successfully? Eg.

https://github.com/iaindooley/trellinator-buffer/blob/master/nginx_template.txt

Then if that works, start adding things in until it breaks!