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JavaScript@langchain/langgraphpregelPregelgetStateHistory
Methodā—Since v0.3

getStateHistory

Copy
getStateHistory(
  config: RunnableConfig,
  options: CheckpointListOptions
): AsyncIterableIterator<StateSnapshot>
View source on GitHub

Parameters

NameTypeDescription
config*RunnableConfig

Configuration for retrieving the history

optionsCheckpointListOptions

Options for filtering the history

Gets the history of graph states. Requires a checkpointer to be configured. Useful for:

  • Debugging execution history
  • Implementing time travel
  • Analyzing graph behavior