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Checkpoint Postgres

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Pythonlanggraph-clischemasThreadTTLConfig

Class●Since v0.4

ThreadTTLConfig

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ThreadTTLConfig()

Bases

TypedDict

Constructors

Attributes

View source on GitHub

constructor

__init__

Name	Type
strategy	Literal['delete', 'keep_latest']
default_ttl	float \| None
sweep_interval_minutes	int \| None
sweep_limit	int \| None

strategy: Literal['delete', 'keep_latest']

Action taken when a thread exceeds its TTL.

"delete": Remove the thread and all its data entirely.
"keep_latest": Prune old checkpoints but keep the thread and its latest state.

default_ttl: float | None

Default TTL (time-to-live) in minutes for checkpointed data.

sweep_interval_minutes: int | None

Interval in minutes between sweep iterations. If omitted, a default interval will be used (typically ~ 5 minutes).

sweep_limit: int | None

Maximum number of threads to process per sweep iteration. Defaults to 1000.

Configure a default TTL for checkpointed data within threads.