refactor(litellm_logging.py): refactors how slack_alerting generates langfuse trace url

gets the url from logging object

litellm/integrations/slack_alerting.py

@@ -24,6 +24,7 @@ import litellm.types
 from litellm._logging import verbose_logger, verbose_proxy_logger
 from litellm.caching import DualCache
 from litellm.integrations.custom_logger import CustomLogger
+from litellm.litellm_core_utils.litellm_logging import Logging
 from litellm.llms.custom_httpx.http_handler import AsyncHTTPHandler
 from litellm.proxy._types import AlertType, CallInfo, UserAPIKeyAuth, WebhookEvent
 from litellm.types.router import LiteLLM_Params
@@ -229,7 +230,7 @@ class SlackAlerting(CustomLogger):
             "db_exceptions",
         ]
 
-    def _add_langfuse_trace_id_to_alert(
+    async def _add_langfuse_trace_id_to_alert(
         self,
         request_data: Optional[dict] = None,
     ) -> Optional[str]:
@@ -242,21 +243,19 @@ class SlackAlerting(CustomLogger):
         -> litellm_call_id
         """
         # do nothing for now
-        if request_data is not None:
-            trace_id = None
         if (
-                request_data.get("metadata", {}).get("existing_trace_id", None)
-                is not None
+            request_data is not None
+            and request_data.get("litellm_logging_obj", None) is not None
         ):
-                trace_id = request_data["metadata"]["existing_trace_id"]
-            elif request_data.get("metadata", {}).get("trace_id", None) is not None:
-                trace_id = request_data["metadata"]["trace_id"]
-            elif request_data.get("litellm_logging_obj", None) is not None and hasattr(
-                request_data["litellm_logging_obj"], "model_call_details"
-            ):
-                trace_id = request_data["litellm_logging_obj"].model_call_details[
-                    "litellm_call_id"
-                ]
+            trace_id: Optional[str] = None
+            litellm_logging_obj: Logging = request_data["litellm_logging_obj"]
+
+            for _ in range(3):
+                trace_id = litellm_logging_obj._get_trace_id(service_name="langfuse")
+                if trace_id is not None:
+                    break
+                await asyncio.sleep(3)  # wait 3s before retrying for trace id
+
             if litellm.litellm_core_utils.litellm_logging.langFuseLogger is not None:
                 base_url = (
                     litellm.litellm_core_utils.litellm_logging.langFuseLogger.Langfuse.base_url
@@ -645,7 +644,7 @@ class SlackAlerting(CustomLogger):
                 )
 
                 if "langfuse" in litellm.success_callback:
-                    langfuse_url = self._add_langfuse_trace_id_to_alert(
+                    langfuse_url = await self._add_langfuse_trace_id_to_alert(
                         request_data=request_data,
                     )
 

litellm/litellm_core_utils/litellm_logging.py

@@ -10,7 +10,7 @@ import sys
 import time
 import traceback
 import uuid
-from typing import Any, Callable, Dict, List, Optional
+from typing import Any, Callable, Dict, List, Literal, Optional
 
 import litellm
 from litellm import (
@@ -19,7 +19,7 @@ from litellm import (
     turn_off_message_logging,
     verbose_logger,
 )
-from litellm.caching import S3Cache
+from litellm.caching import InMemoryCache, S3Cache
 from litellm.integrations.custom_logger import CustomLogger
 from litellm.litellm_core_utils.redact_messages import (
     redact_message_input_output_from_logging,
@@ -111,7 +111,25 @@ additional_details: Optional[Dict[str, str]] = {}
 local_cache: Optional[Dict[str, str]] = {}
 last_fetched_at = None
 last_fetched_at_keys = None
+
+
 ####
+class ServiceTraceIDCache:
+    def __init__(self) -> None:
+        self.cache = InMemoryCache()
+
+    def get_cache(self, litellm_call_id: str, service_name: str) -> Optional[str]:
+        key_name = "{}:{}".format(service_name, litellm_call_id)
+        response = self.cache.get_cache(key=key_name)
+        return response
+
+    def set_cache(self, litellm_call_id: str, service_name: str, trace_id: str) -> None:
+        key_name = "{}:{}".format(service_name, litellm_call_id)
+        self.cache.set_cache(key=key_name, value=trace_id)
+        return None
+
+
+in_memory_trace_id_cache = ServiceTraceIDCache()
 
 
 class Logging:
@@ -821,7 +839,7 @@ class Logging:
                                 langfuse_secret=self.langfuse_secret,
                                 langfuse_host=self.langfuse_host,
                             )
-                        langFuseLogger.log_event(
+                        _response = langFuseLogger.log_event(
                             kwargs=kwargs,
                             response_obj=result,
                             start_time=start_time,
@@ -829,6 +847,14 @@ class Logging:
                             user_id=kwargs.get("user", None),
                             print_verbose=print_verbose,
                         )
+                        if _response is not None and isinstance(_response, dict):
+                            _trace_id = _response.get("trace_id", None)
+                            if _trace_id is not None:
+                                in_memory_trace_id_cache.set_cache(
+                                    litellm_call_id=self.litellm_call_id,
+                                    service_name="langfuse",
+                                    trace_id=_trace_id,
+                                )
                     if callback == "datadog":
                         global dataDogLogger
                         verbose_logger.debug("reaches datadog for success logging!")
@@ -1607,7 +1633,7 @@ class Logging:
                                 langfuse_secret=self.langfuse_secret,
                                 langfuse_host=self.langfuse_host,
                             )
-                        langFuseLogger.log_event(
+                        _response = langFuseLogger.log_event(
                             start_time=start_time,
                             end_time=end_time,
                             response_obj=None,
@@ -1617,6 +1643,14 @@ class Logging:
                             level="ERROR",
                             kwargs=self.model_call_details,
                         )
+                        if _response is not None and isinstance(_response, dict):
+                            _trace_id = _response.get("trace_id", None)
+                            if _trace_id is not None:
+                                in_memory_trace_id_cache.set_cache(
+                                    litellm_call_id=self.litellm_call_id,
+                                    service_name="langfuse",
+                                    trace_id=_trace_id,
+                                )
                     if callback == "traceloop":
                         traceloopLogger.log_event(
                             start_time=start_time,
@@ -1721,6 +1755,24 @@ class Logging:
                     )
                 )
 
+    def _get_trace_id(self, service_name: Literal["langfuse"]) -> Optional[str]:
+        """
+        For the given service (e.g. langfuse), return the trace_id actually logged.
+
+        Used for constructing the url in slack alerting.
+
+        Returns:
+            - str: The logged trace id
+            - None: If trace id not yet emitted.
+        """
+        trace_id: Optional[str] = None
+        if service_name == "langfuse":
+            trace_id = in_memory_trace_id_cache.get_cache(
+                litellm_call_id=self.litellm_call_id, service_name=service_name
+            )
+
+        return trace_id
+
 
 def set_callbacks(callback_list, function_id=None):
     """

litellm/proxy/utils.py

@@ -463,7 +463,7 @@ class ProxyLogging:
         alerting_metadata = {}
         if request_data is not None:
 
-            _url = self.slack_alerting_instance._add_langfuse_trace_id_to_alert(
+            _url = await self.slack_alerting_instance._add_langfuse_trace_id_to_alert(
                 request_data=request_data
             )
 

litellm/tests/test_alerting.py

@@ -1,33 +1,37 @@
 # What is this?
 ## Tests slack alerting on proxy logging object
 
-import sys, json, uuid, random, httpx
+import asyncio
+import io
+import json
 import os
-import io, asyncio
+import random
+import sys
+import time
+import uuid
 from datetime import datetime, timedelta
 from typing import Optional
 
+import httpx
+
 # import logging
 # logging.basicConfig(level=logging.DEBUG)
 sys.path.insert(0, os.path.abspath("../.."))
-from litellm.proxy.utils import ProxyLogging
-from litellm.caching import DualCache, RedisCache
-import litellm
-import pytest
 import asyncio
-from unittest.mock import patch, MagicMock
-from litellm.utils import get_api_base
-from litellm.caching import DualCache
-from litellm.integrations.slack_alerting import SlackAlerting, DeploymentMetrics
-import unittest.mock
-from unittest.mock import AsyncMock
-import pytest
-from litellm.router import AlertingConfig, Router
-from litellm.proxy._types import CallInfo
-from openai import APIError
-from litellm.router import AlertingConfig
-import litellm
 import os
+import unittest.mock
+from unittest.mock import AsyncMock, MagicMock, patch
+
+import pytest
+from openai import APIError
+
+import litellm
+from litellm.caching import DualCache, RedisCache
+from litellm.integrations.slack_alerting import DeploymentMetrics, SlackAlerting
+from litellm.proxy._types import CallInfo
+from litellm.proxy.utils import ProxyLogging
+from litellm.router import AlertingConfig, Router
+from litellm.utils import get_api_base
 
 
 @pytest.mark.parametrize(
@@ -123,8 +127,8 @@ def test_init():
     print("passed testing slack alerting init")
 
 
-from unittest.mock import patch, AsyncMock
 from datetime import datetime, timedelta
+from unittest.mock import AsyncMock, patch
 
 
 @pytest.fixture
@@ -805,3 +809,53 @@ async def test_alerting():
         pass
     finally:
         await asyncio.sleep(3)
+
+
+@pytest.mark.asyncio
+async def test_langfuse_trace_id():
+    """
+    - Unit test for `_add_langfuse_trace_id_to_alert` function in slack_alerting.py
+    """
+    from litellm.litellm_core_utils.litellm_logging import Logging
+
+    litellm.success_callback = ["langfuse"]
+
+    litellm_logging_obj = Logging(
+        model="gpt-3.5-turbo",
+        messages=[{"role": "user", "content": "hi"}],
+        stream=False,
+        call_type="acompletion",
+        litellm_call_id="1234",
+        start_time=datetime.now(),
+        function_id="1234",
+    )
+
+    litellm.completion(
+        model="gpt-3.5-turbo",
+        messages=[{"role": "user", "content": "Hey how's it going?"}],
+        mock_response="Hey!",
+        litellm_logging_obj=litellm_logging_obj,
+    )
+
+    await asyncio.sleep(3)
+
+    assert litellm_logging_obj._get_trace_id(service_name="langfuse") is not None
+
+    slack_alerting = SlackAlerting(
+        alerting_threshold=32,
+        alerting=["slack"],
+        alert_types=["llm_exceptions"],
+        internal_usage_cache=DualCache(),
+    )
+
+    trace_url = await slack_alerting._add_langfuse_trace_id_to_alert(
+        request_data={"litellm_logging_obj": litellm_logging_obj}
+    )
+
+    assert trace_url is not None
+
+    returned_trace_id = int(trace_url.split("/")[-1])
+
+    assert returned_trace_id == int(
+        litellm_logging_obj._get_trace_id(service_name="langfuse")
+    )

litellm/tests/test_utils.py

@@ -1,5 +1,6 @@
 import copy
 import sys
+import time
 from datetime import datetime
 from unittest import mock
 
@@ -548,3 +549,63 @@ def test_get_llm_provider_ft_models():
 
     model, custom_llm_provider, _, _ = get_llm_provider(model="ft:gpt-4o-2024-05-13")
     assert custom_llm_provider == "openai"
+
+
+@pytest.mark.parametrize("langfuse_trace_id", [None, "my-unique-trace-id"])
+@pytest.mark.parametrize(
+    "langfuse_existing_trace_id", [None, "my-unique-existing-trace-id"]
+)
+def test_logging_trace_id(langfuse_trace_id, langfuse_existing_trace_id):
+    """
+    - Unit test for `_get_trace_id` function in Logging obj
+    """
+    from litellm.litellm_core_utils.litellm_logging import Logging
+
+    litellm.success_callback = ["langfuse"]
+    litellm_call_id = "my-unique-call-id"
+    litellm_logging_obj = Logging(
+        model="gpt-3.5-turbo",
+        messages=[{"role": "user", "content": "hi"}],
+        stream=False,
+        call_type="acompletion",
+        litellm_call_id=litellm_call_id,
+        start_time=datetime.now(),
+        function_id="1234",
+    )
+
+    metadata = {}
+
+    if langfuse_trace_id is not None:
+        metadata["trace_id"] = langfuse_trace_id
+    if langfuse_existing_trace_id is not None:
+        metadata["existing_trace_id"] = langfuse_existing_trace_id
+
+    litellm.completion(
+        model="gpt-3.5-turbo",
+        messages=[{"role": "user", "content": "Hey how's it going?"}],
+        mock_response="Hey!",
+        litellm_logging_obj=litellm_logging_obj,
+        metadata=metadata,
+    )
+
+    time.sleep(3)
+    assert litellm_logging_obj._get_trace_id(service_name="langfuse") is not None
+
+    ## if existing_trace_id exists
+    if langfuse_existing_trace_id is not None:
+        assert (
+            litellm_logging_obj._get_trace_id(service_name="langfuse")
+            == langfuse_existing_trace_id
+        )
+    ## if trace_id exists
+    elif langfuse_trace_id is not None:
+        assert (
+            litellm_logging_obj._get_trace_id(service_name="langfuse")
+            == langfuse_trace_id
+        )
+    ## if existing_trace_id exists
+    else:
+        assert (
+            litellm_logging_obj._get_trace_id(service_name="langfuse")
+            == litellm_call_id
+        )