_generate_response_from_error() — langchain Function Reference

Architecture documentation for the _generate_response_from_error() function in chat_models.py from the langchain codebase.

Function python CoreAbstractions MessageSchema calls 1 called by 4

Entity Profile

CoreAbstractions→ MessageSchema→ _generate_response_from_error() — langchain Function Reference

Dependency Diagram

graph TD
  0a0401bd_a59c_7ac5_1c91_a5f406b3cdc6["_generate_response_from_error()"]
  20f4116a_d26d_2a5f_4a10_67af6940e081["chat_models.py"]
  0a0401bd_a59c_7ac5_1c91_a5f406b3cdc6 -->|defined in| 20f4116a_d26d_2a5f_4a10_67af6940e081
  7f210df0_4f6a_343c_b4fe_f942048ea776["stream()"]
  7f210df0_4f6a_343c_b4fe_f942048ea776 -->|calls| 0a0401bd_a59c_7ac5_1c91_a5f406b3cdc6
  39e8cf9b_1f2e_9a93_e3f1_aaaffdfd70fa["astream()"]
  39e8cf9b_1f2e_9a93_e3f1_aaaffdfd70fa -->|calls| 0a0401bd_a59c_7ac5_1c91_a5f406b3cdc6
  fccabb0a_e230_0454_e79d_6a55d54eee3b["generate()"]
  fccabb0a_e230_0454_e79d_6a55d54eee3b -->|calls| 0a0401bd_a59c_7ac5_1c91_a5f406b3cdc6
  e539ab1d_5151_8ba1_cfe0_47ef5adc1f67["agenerate()"]
  e539ab1d_5151_8ba1_cfe0_47ef5adc1f67 -->|calls| 0a0401bd_a59c_7ac5_1c91_a5f406b3cdc6
  2fe33b70_f065_8367_2a26_8bb9f938a011["dict()"]
  0a0401bd_a59c_7ac5_1c91_a5f406b3cdc6 -->|calls| 2fe33b70_f065_8367_2a26_8bb9f938a011
  style 0a0401bd_a59c_7ac5_1c91_a5f406b3cdc6 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/language_models/chat_models.py lines 84–111

def _generate_response_from_error(error: BaseException) -> list[ChatGeneration]:
    if hasattr(error, "response"):
        response = error.response
        metadata: dict = {}
        if hasattr(response, "json"):
            try:
                metadata["body"] = response.json()
            except Exception:
                try:
                    metadata["body"] = getattr(response, "text", None)
                except Exception:
                    metadata["body"] = None
        if hasattr(response, "headers"):
            try:
                metadata["headers"] = dict(response.headers)
            except Exception:
                metadata["headers"] = None
        if hasattr(response, "status_code"):
            metadata["status_code"] = response.status_code
        if hasattr(error, "request_id"):
            metadata["request_id"] = error.request_id
        generations = [
            ChatGeneration(message=AIMessage(content="", response_metadata=metadata))
        ]
    else:
        generations = []

    return generations