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LangGraph Checkpoint

Checkpoint Postgres

Checkpoint SQLite

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Pythonlanggraph-sdkschemaCheckpointPayload

Class●Since v0.3

CheckpointPayload

Payload for a checkpoint event.

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CheckpointPayload()

Bases

TypedDict

Constructors

Attributes

View source on GitHub

constructor

__init__

Name	Type
config	dict[str, Any] \| None
metadata	dict[str, Any]
values	dict[str, Any]
next	list[str]
parent_config	dict[str, Any] \| None
tasks	list[CheckpointTaskPayload]

config: dict[str, Any] | None

Configuration for this checkpoint, including the thread_id and checkpoint_id.

metadata: dict[str, Any]

Metadata associated with this checkpoint (e.g. step number, source, writes).

values: dict[str, Any]

Current state values at the time of this checkpoint.

next: list[str]

Names of the nodes scheduled to execute next.

parent_config: dict[str, Any] | None

Configuration of the parent checkpoint, or None if this is the first checkpoint.

tasks: list[CheckpointTaskPayload]

List of tasks associated with this checkpoint.