Method●Since v1.0

handleChainStart

Called at the start of a Chain run, with the chain name and inputs and the run ID.

handleChainStart(
  chain: Serialized,
  inputs: ChainValues,
  runId: string = ...,
  runType: string | undefined = undefined,
  _tags: string[] | undefined = undefined,
  _metadata: Record<string, unknown> | undefined = undefined,
  runName: string | undefined = undefined,
  _parentRunId: string | undefined = undefined,
  extra: Record<string, unknown> | undefined = undefined
): Promise<CallbackManagerForChainRun>

Parameters

Name	Type	Description
`chain`*	`Serialized`
`inputs`*	`ChainValues`
`runId`	`string`	Default:`...`
`runType`	`string \| undefined`	Default:`undefined`
`_tags`	`string[] \| undefined`	Default:`undefined`
`_metadata`	`Record<string, unknown> \| undefined`	Default:`undefined`
`runName`	`string \| undefined`	Default:`undefined`
`_parentRunId`	`string \| undefined`	Default:`undefined`
`extra`	`Record<string, unknown> \| undefined`	Default:`undefined`

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handleChainStart

Parameters

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handleChainStart

Parameters