55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
from __future__ import annotations
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from typing import Any
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from deerflow.config import (
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get_enabled_tracing_providers,
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get_tracing_config,
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validate_enabled_tracing_providers,
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)
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def _create_langsmith_tracer(config) -> Any:
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from langchain_core.tracers.langchain import LangChainTracer
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return LangChainTracer(project_name=config.project)
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def _create_langfuse_handler(config) -> Any:
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from langfuse import Langfuse
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from langfuse.langchain import CallbackHandler as LangfuseCallbackHandler
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# langfuse>=4 initializes project-specific credentials through the client
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# singleton; the LangChain callback then attaches to that configured client.
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Langfuse(
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secret_key=config.secret_key,
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public_key=config.public_key,
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host=config.host,
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)
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return LangfuseCallbackHandler(public_key=config.public_key)
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def build_tracing_callbacks() -> list[Any]:
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"""Build callbacks for all explicitly enabled tracing providers."""
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validate_enabled_tracing_providers()
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enabled_providers = get_enabled_tracing_providers()
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if not enabled_providers:
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return []
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tracing_config = get_tracing_config()
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callbacks: list[Any] = []
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for provider in enabled_providers:
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if provider == "langsmith":
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try:
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callbacks.append(_create_langsmith_tracer(tracing_config.langsmith))
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except Exception as exc: # pragma: no cover - exercised via tests with monkeypatch
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raise RuntimeError(f"LangSmith tracing initialization failed: {exc}") from exc
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elif provider == "langfuse":
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try:
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callbacks.append(_create_langfuse_handler(tracing_config.langfuse))
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except Exception as exc: # pragma: no cover - exercised via tests with monkeypatch
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raise RuntimeError(f"Langfuse tracing initialization failed: {exc}") from exc
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return callbacks
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