REST API: Add support for idempotency keys

src/pretix/api/signals.py

@@ -3,7 +3,7 @@ from datetime import timedelta
 from django.dispatch import Signal, receiver
 from django.utils.timezone import now
 
-from pretix.api.models import WebHookCall
+from pretix.api.models import ApiCall, WebHookCall
 from pretix.base.signals import periodic_task
 
 register_webhook_events = Signal(
@@ -19,3 +19,8 @@ instances.
 @receiver(periodic_task)
 def cleanup_webhook_logs(sender, **kwargs):
     WebHookCall.objects.filter(datetime__lte=now() - timedelta(days=30)).delete()
+
+
+@receiver(periodic_task)
+def cleanup_api_logs(sender, **kwargs):
+    ApiCall.objects.filter(datetime__lte=now() - timedelta(hours=24)).delete()