Unable to filter interface-templates by device type (slug or id)

[nonPointer]

Endpoint: api/dcim/interface-templates
Neither device type ID nor device type slug not working.
I encountered the same issue as this post on
NetBox v3.6.6. It seems to be an implementation issue of the API endpoint. Thanks!

[candlerb]

For completeness, can you show the exact query parameters you're sending?

Looking at the source code, it seems that devicetype_id (with no underscore between device and type) is the correct name of the filter.

class InterfaceTemplateFilterSet(ChangeLoggedModelFilterSet, ModularDeviceTypeComponentFilterSet):
    type = django_filters.MultipleChoiceFilter(
        choices=InterfaceTypeChoices,
        null_value=None
    )
    bridge_id = django_filters.ModelMultipleChoiceFilter(
        field_name='bridge',
        queryset=InterfaceTemplate.objects.all()
    )
    poe_mode = django_filters.MultipleChoiceFilter(
        choices=InterfacePoEModeChoices
    )
    poe_type = django_filters.MultipleChoiceFilter(
        choices=InterfacePoETypeChoices
    )
    rf_role = django_filters.MultipleChoiceFilter(
        choices=WirelessRoleChoices
    )

///

class ModularDeviceTypeComponentFilterSet(DeviceTypeComponentFilterSet):
    moduletype_id = django_filters.ModelMultipleChoiceFilter(
        queryset=ModuleType.objects.all(),
        field_name='module_type_id',
        label=_('Module type (ID)'),
    )

///

class DeviceTypeComponentFilterSet(django_filters.FilterSet):
    q = django_filters.CharFilter(
        method='search',
        label=_('Search'),
    )
    devicetype_id = django_filters.ModelMultipleChoiceFilter(    // <<<<<<<< NOTE
        queryset=DeviceType.objects.all(),
        field_name='device_type_id',
        label=_('Device type (ID)'),
    )

Also you can see this in the REST API documentation, which you can get from a link on the bottom of the Netbox front screen:

[nonPointer]

Thanks candlerb for your response.
I tried device-type-id, which should be devicetype_id. Now it works! The built-in Swagger is very helpful.
But for endpoint api/dcim/devices, it uses device-type-id. The parameter naming schema of NetBox API seems not consistent.
Many thanks!

[candlerb]

But for endpoint api/dcim/devices, it uses device-type-id

Actually I believe it uses device_type_id. Source

The parameter naming schema of NetBox API seems not consistent.

An oversight no doubt. If it were changed now, it would affect users with existing integrations. (Netbox does make backwards-incompatible API changes fairly regularly though, and if you'd like to see this changed, you can raise a feature request)

FWIW, the content type name is dcim.devicetype and the postgres table is dcim_devicetype

[nonPointer]

Thanks for the clarification!