Custom Redis key format/prefix

[markdascher]

Just want to make sure I'm not missing something… Does this library support a custom Redis key format, or adding a custom prefix? In order to safely use with a shared Redis instance.

Or would doing that (e.g. if redis-py supported transparent prefixes/namespaces) be a bad idea for any particular reason?

[vishal-bala]

Hey! Custom prefixes are currently supported for stores, but not for checkpointing - for the RedisStore, you can provide your prefix in the configuration like

from langgraph.store.redis import RedisStore

with RedisStore.from_conn_string(
    "redis://localhost:6379",
    store_prefix="myapp",           # Default: "store"
    vector_prefix="myapp_vectors"   # Default: "store_vectors"
) as store:
    store.setup()

Checkpoints currently have them hard-coded to checkpoint, although I can't think of any reason for that to not be customizable.

langgraph-redis/langgraph/checkpoint/redis/base.py

Line 34 in 87791a1

CHECKPOINT_PREFIX = "checkpoint"

Enabling support should be relatively straightforward, so I'll make that change!