"""passbook core tasks"""
from django.utils.timezone import now
from structlog import get_logger
from passbook.core.models import Nonce
from passbook.root.celery import CELERY_APP
LOGGER = get_logger()
@CELERY_APP.task()
def clean_nonces():
"""Remove expired nonces"""
amount, _ = Nonce.objects.filter(expires__lt=now(), expiring=True).delete()
LOGGER.debug('Deleted expired nonces', amount=amount)
