initialize_client() — langchain Function Reference

Architecture documentation for the initialize_client() function in _utils.py from the langchain codebase.

Function python CoreAbstractions MessageSchema

Entity Profile

CoreAbstractions→ MessageSchema→ initialize_client() — langchain Function Reference

Dependency Diagram

graph TD
  4bfa6d64_577e_a609_8520_c6d7e00b4bd2["initialize_client()"]
  97b520fa_d583_32db_3349_a96eccf51ebf["_utils.py"]
  4bfa6d64_577e_a609_8520_c6d7e00b4bd2 -->|defined in| 97b520fa_d583_32db_3349_a96eccf51ebf
  style 4bfa6d64_577e_a609_8520_c6d7e00b4bd2 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/partners/perplexity/langchain_perplexity/_utils.py lines 8–25

def initialize_client(values: dict[str, Any]) -> dict[str, Any]:
    """Initialize the Perplexity client."""
    pplx_api_key = (
        values.get("pplx_api_key")
        or os.environ.get("PPLX_API_KEY")
        or os.environ.get("PERPLEXITY_API_KEY")
        or ""
    )
    values["pplx_api_key"] = convert_to_secret_str(pplx_api_key)

    api_key = (
        values["pplx_api_key"].get_secret_value() if values["pplx_api_key"] else None
    )

    if not values.get("client"):
        values["client"] = Perplexity(api_key=api_key)

    return values