v2.5 POST to API /dcim/interface-connections fails

[awlx]

Environment

• Python version: 3.6-alpine3.8
• NetBox version: 2.5.0

When calling api/dcim/interface-connections with corresponding interface IDs there appears an error about the interface not belonging to a device or virtualmachine:

The request failed with code 400 Bad Request: {'non_field_errors': ['An interface must belong to either a device or a virtual machine.']}

Steps to Reproduce

curl -X POST -H "Authorization: Token <token>" -H "Content-Type: application/json" -d '{"interface_a": <iface_a>, "interface_b": <iface_b>, "connection_status": true}' https://netbox.dev.test.net/api/dcim/interface-connections/

Expected Behavior

The connection should be created as in Netbox 2.4.9

Observed Behavior

The request failed with code 400 Bad Request: {'non_field_errors': ['An interface must belong to either a device or a virtual machine.']}

[jeremystretch]

The /dcim/interface-connections endpoint is now read-only. All connections are now created via the /dcim/cables/ endpoint. Marking this as a bug because the endpoint shouldn't accept a POST request at all.

[awlx]

Thx, I didn't find any hint about this change in the release notes. Might be worth adding that so people can adjust their scripts :).

• Introduced a new API endpoint for cables at /dcim/cables/

Because this hint didn't say it obsoletes /dcim/interface-connections for writing.