> ## Documentation Index > Fetch the complete documentation index at: https://docs.prefect.io/llms.txt > Use this file to discover all available pages before exploring further. # client # `prefect_redis.client` ## Functions ### `cached` ```python theme={null} cached(fn: Callable[..., Any]) -> Callable[..., Any] ``` ### `close_all_cached_connections` ```python theme={null} close_all_cached_connections() -> None ``` Close all cached Redis connections. ### `clear_cached_clients` ```python theme={null} clear_cached_clients() -> None ``` Clear all cached Redis clients to force fresh connections. This should be called when a connection error is detected to ensure subsequent calls to get\_async\_redis\_client() return fresh clients rather than stale ones with broken connections. ### `get_async_redis_client` ```python theme={null} get_async_redis_client(url: Union[str, None] = None, host: Union[str, None] = None, port: Union[int, None] = None, db: Union[int, None] = None, password: Union[str, None] = None, username: Union[str, None] = None, health_check_interval: Union[int, None] = None, decode_responses: bool = True, ssl: Union[bool, None] = None, socket_timeout: Union[float, None, Any] = _UNSET, socket_connect_timeout: Union[float, None, Any] = _UNSET, protocol: Union[int, None] = None) -> Redis ``` Retrieves an async Redis client. When `url` is provided (or configured via `PREFECT_REDIS_MESSAGING_URL`), `Redis.from_url` is used and the discrete host/port/… arguments are ignored. **Args:** * `url`: Full Redis URL (e.g. `redis\://localhost\:6379/0`). * `host`: The host location. * `port`: The port to connect to the host with. * `db`: The Redis database to interact with. * `password`: The password for the redis host * `username`: Username for the redis instance * `health_check_interval`: Health check interval in seconds. * `decode_responses`: Whether to decode binary responses from Redis to unicode strings. * `ssl`: Whether to use SSL for the connection. * `socket_timeout`: Timeout for socket read operations (None = no timeout). * `socket_connect_timeout`: Timeout for socket connect (None = no timeout). * `protocol`: RESP protocol version (default 2 from settings). **Returns:** * a Redis client ### `async_redis_from_settings` ```python theme={null} async_redis_from_settings(settings: RedisMessagingSettings, **options: Any) -> Redis ``` ## Classes ### `RedisMessagingSettings` Settings for connecting to Redis. Connection can be configured either via a single `url` field (e.g. `redis://user:pass@host:6379/0`) or with the individual `host`/`port`/`db`/… fields. When `url` is set it takes precedence and the discrete fields are ignored. Environment variable: `PREFECT_REDIS_MESSAGING_URL`