cache\_dynamo\_based
====================

.. note::

   **TTL and automatic DynamoDB cleanup**

   When *ttl* is set, an expired entry is **deleted from DynamoDB** at the
   moment it is first read back after expiry, no DynamoDB native TTL
   configuration or background job is required to keep the table clean.

   Because TTLs are typically set to hours or days, expirations are
   infrequent; the extra ``DeleteItem`` call on each expiry has negligible
   overhead compared to the cost of recomputing the cached value.

.. automodule:: core_aws.decorators.cache_dynamo_based
   :members:
   :undoc-members:
   :show-inheritance:
   :private-members: