webhook - infinite loop

[jnc27]

I am using webhook to update custom data fields whenever a user changes some data in a device. Webhook is installed directly on the netbox server.
Updating netbox custom data field seems to work, however I am running into an infinite loop, where webhook detects the http post request constantly and thus produce an infinite update of the device.

What is the best way to avoid infinite loops?

Thank you.

[markkuleinio]

One solution is to use a specific username (its API token) in the webhook handler, and then compare the username field in the incoming webhook and just ignore the call if the username matches the webhook handler username.

[jnc27]

Thanks for the answer.
I think I understand the approach. But how would I retrieve the username?

[markkuleinio]

In the default webhook request body there is the username field: https://docs.netbox.dev/en/stable/integrations/webhooks/#default-request-body

[jnc27]

got you! Thanks a lot!