dynamodb#
Summary#
|
Async cache backend for DynamoDB |
|
An async interface for caching objects in a DynamoDB key-store |
Module Contents#
- class DynamoDBBackend(cache_name='aiohttp-cache', key_attr_name='k', val_attr_name='v', create_if_not_exists=False, context=None, **kwargs)#
Bases:
CacheBackend
Async cache backend for DynamoDB
Notes
Requires aioboto3
Accepts keyword arguments for
boto3.session.Session.client()
See DynamoDB Service Resource for more usage details.
- Parameters:
cache_name (
str
) – Table name to usekey_attr_name (
str
) – The name of the field to use for keys in the DynamoDB documentval_attr_name (
str
) – The name of the field to use for values in the DynamoDB documentcreate_if_not_exists (
bool
) – Whether or not to attempt to create the DynamoDB tablecontext (
Optional
[ResourceCreatorContext
]) – An existing ResourceCreatorContext to reuse instead of creating a new onekwargs (
Any
) – Additional keyword arguments forCacheBackend
or backend connection
- class DynamoDbCache(table_name, namespace, key_attr_name='k', val_attr_name='v', create_if_not_exists=False, context=None, **kwargs)#
Bases:
BaseCache
An async interface for caching objects in a DynamoDB key-store
The actual key name on the dynamodb server will be
namespace:key
. In order to deal with how dynamodb stores data/keys, all values must be serialized.- Parameters:
- _abc_impl = <_abc_data object>#
- async _create_table(conn)#
- async _scan()#
- Return type:
- async bulk_delete(keys)#
Delete item(s) from the cache. Does not raise an error if the item is missing.
- async contains(key)#
Check if a key is stored in the cache
- async delete(key)#
Delete an item from the cache. Does not raise an error if the item is missing.
- get_connection()#
- async get_table()#
- async keys()#
Get all keys stored in the cache
- Return type:
- async read(key)#
Read an item from the cache. Returns
None
if the item is missing.
- async values()#
Get all values stored in the cache
- Return type: