Add Celery task for cleantokens (#1070)

Author: Natureshadow

AUTHORS

@@ -66,3 +66,4 @@ pySilver
 Shaheed Haque
 Vinay Karanam
 Eduardo Oliveira
+Dominik George

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 * #651 Batch expired token deletions in `cleartokens` management command
 * Added pt-BR translations.
+* #1070 Add a Celery task for clearing expired tokens, e.g. to be scheduled as a [periodic task](https://docs.celeryproject.org/en/stable/userguide/periodic-tasks.html)
 
 ### Fixed
 * #1012 Return status for introspecting a nonexistent token from 401 to the correct value of 200 per [RFC 7662](https://datatracker.ietf.org/doc/html/rfc7662#section-2.2).

docs/management_commands.rst

@@ -21,3 +21,8 @@ To prevent the CPU and RAM high peaks during deletion process use ``CLEAR_EXPIRE
 
 Note: Refresh tokens need to expire before AccessTokens can be removed from the
 database. Using ``cleartokens`` without ``REFRESH_TOKEN_EXPIRE_SECONDS`` has limited effect.
+
+The ``cleartokens`` action can also be scheduled as a `Celery periodic task`_
+by using the ``clear_tokens`` task (automatically registered when using Celery).
+
+.. _Celery periodic task: https://docs.celeryproject.org/en/stable/userguide/periodic-tasks.html

oauth2_provider/tasks.py

@@ -0,0 +1,8 @@
+from celery import shared_task
+
+
+@shared_task
+def clear_tokens():
+    from ...models import clear_expired  # noqa
+
+    clear_expired()