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JavaScript@langchain/langgraph-checkpoint-redisshallowShallowRedisSaver
Class

ShallowRedisSaver

Copy
class ShallowRedisSaver

Bases

BaseCheckpointSaver

Constructors

Properties

Methods

View source on GitHub
constructor
constructor
property
serde: SerializerProtocol
method
deleteThread→ Promise<void>

Delete all checkpoints and writes associated with a specific thread ID.

method
end→ Promise<void>
method
get→ Promise<Checkpoint<string, string> | undefined>
method
getNextVersion→ number

Generate the next version ID for a channel.

Default is to use integer versions, incrementing by 1. If you override, you can use str/int/float versions, as long as they are monotonically increasing.

method
getTuple→ Promise<CheckpointTuple | undefined>
method
list→ AsyncGenerator<CheckpointTuple>
method
put→ Promise<RunnableConfig<Record<string, any>>>
method
putWrites→ Promise<void>

Store intermediate writes linked to a checkpoint.

method
fromUrl→ Promise<RedisSaver>

ShallowRedisSaver - A Redis checkpoint saver that only keeps the latest checkpoint per thread.

This is a memory-optimized variant that:

  • Only stores the most recent checkpoint for each thread
  • Stores channel values inline (no separate blob storage)
  • Automatically cleans up old checkpoints and writes when new ones are added
  • Reduces storage usage for applications that don't need checkpoint history