/api/core/background-tasks/ returns TypeError #1438

New Issue

MrUnknownDE · 2026-04-06T01:31:45+02:00

MrUnknownDE commented

2026-04-06 01:31:45 +02:00

Originally created by @fabi125 on 8/18/2025

Deployment Type

Self-hosted

NetBox Version

v4.3.6

Python Version

3.12

Steps to Reproduce

Go to https://demo.netbox.dev/core/background-queues/0/failed/ and click on any of the failed tasks.
Insert /api/ in the URL, e.g. https://demo.netbox.dev/api/core/background-tasks/7a0b851f-b224-46d7-a6b5-8778939eee49/

Expected Behavior

JSON representation of the background task is returned

Observed Behavior

{
  "error": "Object of type Job is not JSON serializable",
  "exception": "TypeError",
  "netbox_version": "4.3.6",
  "python_version": "3.12.9"
}

or

{
  "error": "Object of type EventRule is not JSON serializable",
  "exception": "TypeError",
  "netbox_version": "4.3.6",
  "python_version": "3.12.9"
}

*Originally created by @fabi125 on 8/18/2025* ### Deployment Type Self-hosted ### NetBox Version v4.3.6 ### Python Version 3.12 ### Steps to Reproduce 1. Go to https://demo.netbox.dev/core/background-queues/0/failed/ and click on any of the failed tasks. 2. Insert `/api/` in the URL, e.g. https://demo.netbox.dev/api/core/background-tasks/7a0b851f-b224-46d7-a6b5-8778939eee49/ ### Expected Behavior JSON representation of the background task is returned ### Observed Behavior ``` { "error": "Object of type Job is not JSON serializable", "exception": "TypeError", "netbox_version": "4.3.6", "python_version": "3.12.9" } ``` or ``` { "error": "Object of type EventRule is not JSON serializable", "exception": "TypeError", "netbox_version": "4.3.6", "python_version": "3.12.9" } ```

MrUnknownDE closed this issue

2026-04-06 01:31:45 +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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status: accepted type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug 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type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug type: bug

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Reference: github/netbox#1438