Interface webhook data does not include connected endpoints when a cable connection is made #433

New Issue

MrUnknownDE · 2026-04-05T16:32:19+02:00

MrUnknownDE commented

2026-04-05 16:32:19 +02:00

Originally created by @edaleand on 2/1/2026

NetBox Edition

NetBox Community

NetBox Version

v4.4.10

Python Version

3.12

Steps to Reproduce

In the Netbox web UI, create a webhook localhost testing webhook using URL: 127.0.0.1:9000, Method: POST and Content type application/json
Create an event rule localhost testing event rule with Object types DCIM > Interface and Event Types Object updated, Action type webhook and Webhook localhost testing webhook (the one created in step one)
SSH or exec to netbox underlying OS, activate virtual environment and run the webhook listener with python3 netbox/manage.py webhook_receiver
Back in the Netbox web UI, create a device mydevice1 off some device type. Select a Device role and a Site. Make sure there is an interface on the device, otherwise create one.
Create a device mydevice2 off some device type. Select a Device role and a Site. Make sure there is an interface on the device, otherwise create one.
On an interface on mydevice1, create a cable connecting to an interface on mydevice2
On the webhook listener, observe the output. There should be two completed requests, one for each interface at the cable endpoints.

Expected Behavior

On request #1, connected_endpoints and link_peers will be lists containing json data describing the interface from mydevice2
On request #2, connected_endpoints and link_peers will be lists containing json data describing the interface from mydevice1

Observed Behavior

On request #1, connected_endpoints is null and link_peers is []
On request #2. connected_endpoints is null and link_peers is a list containing json data describing the interface from mydevice1

*Originally created by @edaleand on 2/1/2026* ### NetBox Edition NetBox Community ### NetBox Version v4.4.10 ### Python Version 3.12 ### Steps to Reproduce 1. In the Netbox web UI, create a webhook `localhost testing webhook` using URL: `127.0.0.1:9000`, Method: `POST` and Content type `application/json` 2. Create an event rule `localhost testing event rule` with Object types `DCIM > Interface` and Event Types `Object updated`, Action type `webhook` and Webhook `localhost testing webhook` (the one created in step one) 3. SSH or exec to netbox underlying OS, activate virtual environment and run the webhook listener with `python3 netbox/manage.py webhook_receiver` 4. Back in the Netbox web UI, create a device `mydevice1` off some device type. Select a Device role and a Site. Make sure there is an interface on the device, otherwise create one. 5. Create a device `mydevice2` off some device type. Select a Device role and a Site. Make sure there is an interface on the device, otherwise create one. 6. On an interface on `mydevice1`, create a cable connecting to an interface on `mydevice2` 7. On the webhook listener, observe the output. There should be two completed requests, one for each interface at the cable endpoints. ### Expected Behavior - On `request #1`, `connected_endpoints` and `link_peers` will be lists containing json data describing the interface from `mydevice2` - On `request #2`, `connected_endpoints` and `link_peers` will be lists containing json data describing the interface from `mydevice1` ### Observed Behavior - On `request #1`, `connected_endpoints` is `null` and `link_peers` is `[]` - On `request #2`. `connected_endpoints` is `null` and `link_peers` is a list containing json data describing the interface from `mydevice1`

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21455-sql-indexes-audit

21357-register-model-actions

feature

20924-plugin-ui-components

21766-improve-test-coverage-for-sortable-table-columns

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Reference: github/netbox#433