API responses missing read-only fields (e.g., family) upon creation #270

New Issue

MrUnknownDE · 2026-04-05T16:24:10+02:00

MrUnknownDE commented

2026-04-05 16:24:10 +02:00

Originally created by @chbndrhnns on 2/27/2026

NetBox Edition

NetBox Community

NetBox Version

v4.5.3

Python Version

3.12

Steps to Reproduce

When creating IP-related objects (Prefix, IPAddress, Aggregate, IPRange) via the REST API, read-only fields like family are unexpectedly omitted from the returned JSON response.

Submit a POST request to create a new Prefix (e.g., {"prefix": "192.168.0.0/24"}).
Inspect the HTTP 201 response payload.
Note that the family attribute is missing from the response, even though it should be a read-only field included in the serialized output.

Expected Behavior

The API response should contain the family attribute (and any other similarly calculated fields) immediately upon object creation.

Observed Behavior

The API response is missing family attribute (and any other similarly calculated fields) immediately upon object creation.

*Originally created by @chbndrhnns on 2/27/2026* ### NetBox Edition NetBox Community ### NetBox Version v4.5.3 ### Python Version 3.12 ### Steps to Reproduce When creating IP-related objects (`Prefix`, `IPAddress`, `Aggregate`, `IPRange`) via the REST API, read-only fields like `family` are unexpectedly omitted from the returned JSON response. 1. Submit a `POST` request to create a new `Prefix` (e.g., `{"prefix": "192.168.0.0/24"}`). 2. Inspect the HTTP 201 response payload. 3. Note that the `family` attribute is missing from the response, even though it should be a read-only field included in the serialized output. ### Expected Behavior The API response should contain the `family` attribute (and any other similarly calculated fields) immediately upon object creation. ### Observed Behavior The API response is missing `family` attribute (and any other similarly calculated fields) immediately upon object creation.

MrUnknownDE closed this issue

2026-04-05 16:24:10 +02:00

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Branches Tags

main

21455-sql-indexes-audit

21357-register-model-actions

feature

20924-plugin-ui-components

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

21157-export-template-public-models

21025-pre-render-config-contexts

21364-swagger

feature-ip-prefix-link

20911-dropdown-3

fix_module_substitution

21160-filterset

20911-dropdown-2

20044-elevation-stuck-lightmode

7604-filter-modifiers-v3

20660-script-load

19724-graphql

14884-script

19720-macaddress-interface-generic-relation

fix-19669-api-image-download

7604-filter-modifiers

19275-fixes-interface-bulk-edit

fix-17794-get_field_value_return_list

11507-show-aggregate-and-rir-on-api

9583-add_column_specific_search_field_to_tables

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Reference: github/netbox#270

API responses missing read-only fields (e.g., family) upon creation #270