on_chain_error() — langchain Function Reference

Architecture documentation for the on_chain_error() function in streaming_stdout.py from the langchain codebase.

Function python Observability TelemetryUtilities

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Observability→ TelemetryUtilities→ on_chain_error() — langchain Function Reference

Dependency Diagram

graph TD
  fb5bb54e_a3e8_bdf3_88bc_a1a0770412fe["on_chain_error()"]
  6b65bf57_0fa9_b411_5886_294d6dbe5842["StreamingStdOutCallbackHandler"]
  fb5bb54e_a3e8_bdf3_88bc_a1a0770412fe -->|defined in| 6b65bf57_0fa9_b411_5886_294d6dbe5842
  style fb5bb54e_a3e8_bdf3_88bc_a1a0770412fe fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

libs/core/langchain_core/callbacks/streaming_stdout.py lines 95–101

    def on_chain_error(self, error: BaseException, **kwargs: Any) -> None:
        """Run when chain errors.

        Args:
            error: The error that occurred.
            **kwargs: Additional keyword arguments.
        """