[Feat] Pass through endpoints - ensure PassthroughStandardLoggingPayload is logged and contains method, url, request/response body (#10194)

* ensure passthrough_logging_payload is filled in kwargs

* test_assistants_passthrough_logging

* test_assistants_passthrough_logging

* test_assistants_passthrough_logging

* test_threads_passthrough_logging

* test _init_kwargs_for_pass_through_endpoint

* _init_kwargs_for_pass_through_endpoint

litellm/llms/anthropic/experimental_pass_through/messages/handler.py

@@ -43,7 +43,9 @@ class AnthropicMessagesHandler:
         from litellm.proxy.pass_through_endpoints.success_handler import (
             PassThroughEndpointLogging,
         )
-        from litellm.proxy.pass_through_endpoints.types import EndpointType
+        from litellm.types.passthrough_endpoints.pass_through_endpoints import (
+            EndpointType,
+        )
 
         # Create success handler object
         passthrough_success_handler_obj = PassThroughEndpointLogging()
@@ -98,11 +100,11 @@ async def anthropic_messages(
         api_base=optional_params.api_base,
         api_key=optional_params.api_key,
     )
-    anthropic_messages_provider_config: Optional[
+    anthropic_messages_provider_config: Optional[BaseAnthropicMessagesConfig] = (
-        BaseAnthropicMessagesConfig
+        ProviderConfigManager.get_provider_anthropic_messages_config(
-    ] = ProviderConfigManager.get_provider_anthropic_messages_config(
+            model=model,
-        model=model,
+            provider=litellm.LlmProviders(_custom_llm_provider),
-        provider=litellm.LlmProviders(_custom_llm_provider),
+        )
     )
     if anthropic_messages_provider_config is None:
         raise ValueError(

litellm/proxy/pass_through_endpoints/llm_provider_handlers/anthropic_passthrough_logging_handler.py

@@ -13,7 +13,9 @@ from litellm.llms.anthropic.chat.handler import (
 from litellm.llms.anthropic.chat.transformation import AnthropicConfig
 from litellm.proxy._types import PassThroughEndpointLoggingTypedDict
 from litellm.proxy.auth.auth_utils import get_end_user_id_from_request_body
-from litellm.proxy.pass_through_endpoints.types import PassthroughStandardLoggingPayload
+from litellm.types.passthrough_endpoints.pass_through_endpoints import (
+    PassthroughStandardLoggingPayload,
+)
 from litellm.types.utils import ModelResponse, TextCompletionResponse
 
 if TYPE_CHECKING:
@@ -122,9 +124,9 @@ class AnthropicPassthroughLoggingHandler:
             litellm_model_response.id = logging_obj.litellm_call_id
             litellm_model_response.model = model
             logging_obj.model_call_details["model"] = model
-            logging_obj.model_call_details[
+            logging_obj.model_call_details["custom_llm_provider"] = (
-                "custom_llm_provider"
+                litellm.LlmProviders.ANTHROPIC.value
-            ] = litellm.LlmProviders.ANTHROPIC.value
+            )
             return kwargs
         except Exception as e:
             verbose_proxy_logger.exception(

litellm/proxy/pass_through_endpoints/llm_provider_handlers/assembly_passthrough_logging_handler.py

@@ -14,11 +14,13 @@ from litellm.litellm_core_utils.litellm_logging import (
     get_standard_logging_object_payload,
 )
 from litellm.litellm_core_utils.thread_pool_executor import executor
-from litellm.proxy.pass_through_endpoints.types import PassthroughStandardLoggingPayload
 from litellm.types.passthrough_endpoints.assembly_ai import (
     ASSEMBLY_AI_MAX_POLLING_ATTEMPTS,
     ASSEMBLY_AI_POLLING_INTERVAL,
 )
+from litellm.types.passthrough_endpoints.pass_through_endpoints import (
+    PassthroughStandardLoggingPayload,
+)
 
 
 class AssemblyAITranscriptResponse(TypedDict, total=False):

litellm/proxy/pass_through_endpoints/llm_provider_handlers/base_passthrough_logging_handler.py

@@ -13,7 +13,9 @@ from litellm.litellm_core_utils.litellm_logging import (
 from litellm.llms.base_llm.chat.transformation import BaseConfig
 from litellm.proxy._types import PassThroughEndpointLoggingTypedDict
 from litellm.proxy.auth.auth_utils import get_end_user_id_from_request_body
-from litellm.proxy.pass_through_endpoints.types import PassthroughStandardLoggingPayload
+from litellm.types.passthrough_endpoints.pass_through_endpoints import (
+    PassthroughStandardLoggingPayload,
+)
 from litellm.types.utils import LlmProviders, ModelResponse, TextCompletionResponse
 
 if TYPE_CHECKING:

litellm/proxy/pass_through_endpoints/pass_through_endpoints.py

@@ -23,6 +23,7 @@ from starlette.datastructures import UploadFile as StarletteUploadFile
 import litellm
 from litellm._logging import verbose_proxy_logger
 from litellm.integrations.custom_logger import CustomLogger
+from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLoggingObj
 from litellm.litellm_core_utils.safe_json_dumps import safe_dumps
 from litellm.llms.custom_httpx.http_handler import get_async_httpx_client
 from litellm.proxy._types import (
@@ -38,11 +39,14 @@ from litellm.proxy.common_request_processing import ProxyBaseLLMRequestProcessin
 from litellm.proxy.common_utils.http_parsing_utils import _read_request_body
 from litellm.secret_managers.main import get_secret_str
 from litellm.types.llms.custom_http import httpxSpecialProvider
+from litellm.types.passthrough_endpoints.pass_through_endpoints import (
+    EndpointType,
+    PassthroughStandardLoggingPayload,
+)
 from litellm.types.utils import StandardLoggingUserAPIKeyMetadata
 
 from .streaming_handler import PassThroughStreamingHandler
 from .success_handler import PassThroughEndpointLogging
-from .types import EndpointType, PassthroughStandardLoggingPayload
 
 router = APIRouter()
 
@@ -530,6 +534,7 @@ async def pass_through_request(  # noqa: PLR0915
         passthrough_logging_payload = PassthroughStandardLoggingPayload(
             url=str(url),
             request_body=_parsed_body,
+            request_method=getattr(request, "method", None),
         )
         kwargs = _init_kwargs_for_pass_through_endpoint(
             user_api_key_dict=user_api_key_dict,
@@ -537,6 +542,7 @@ async def pass_through_request(  # noqa: PLR0915
             passthrough_logging_payload=passthrough_logging_payload,
             litellm_call_id=litellm_call_id,
             request=request,
+            logging_obj=logging_obj,
         )
         # done for supporting 'parallel_request_limiter.py' with pass-through endpoints
         logging_obj.update_environment_variables(
@@ -741,6 +747,7 @@ def _init_kwargs_for_pass_through_endpoint(
     request: Request,
     user_api_key_dict: UserAPIKeyAuth,
     passthrough_logging_payload: PassthroughStandardLoggingPayload,
+    logging_obj: LiteLLMLoggingObj,
     _parsed_body: Optional[dict] = None,
     litellm_call_id: Optional[str] = None,
 ) -> dict:
@@ -775,6 +782,11 @@ def _init_kwargs_for_pass_through_endpoint(
         "litellm_call_id": litellm_call_id,
         "passthrough_logging_payload": passthrough_logging_payload,
     }
+
+    logging_obj.model_call_details["passthrough_logging_payload"] = (
+        passthrough_logging_payload
+    )
+
     return kwargs
 
 

litellm/proxy/pass_through_endpoints/streaming_handler.py

@@ -8,6 +8,7 @@ import httpx
 from litellm._logging import verbose_proxy_logger
 from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLoggingObj
 from litellm.proxy._types import PassThroughEndpointLoggingResultValues
+from litellm.types.passthrough_endpoints.pass_through_endpoints import EndpointType
 from litellm.types.utils import StandardPassThroughResponseObject
 
 from .llm_provider_handlers.anthropic_passthrough_logging_handler import (
@@ -17,7 +18,6 @@ from .llm_provider_handlers.vertex_passthrough_logging_handler import (
     VertexPassthroughLoggingHandler,
 )
 from .success_handler import PassThroughEndpointLogging
-from .types import EndpointType
 
 
 class PassThroughStreamingHandler:

litellm/proxy/pass_through_endpoints/success_handler.py

@@ -7,6 +7,9 @@ import httpx
 
 from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLoggingObj
 from litellm.proxy._types import PassThroughEndpointLoggingResultValues
+from litellm.types.passthrough_endpoints.pass_through_endpoints import (
+    PassthroughStandardLoggingPayload,
+)
 from litellm.types.utils import StandardPassThroughResponseObject
 from litellm.utils import executor as thread_pool_executor
 
@@ -92,11 +95,15 @@ class PassThroughEndpointLogging:
         end_time: datetime,
         cache_hit: bool,
         request_body: dict,
+        passthrough_logging_payload: PassthroughStandardLoggingPayload,
         **kwargs,
     ):
         standard_logging_response_object: Optional[
             PassThroughEndpointLoggingResultValues
         ] = None
+        logging_obj.model_call_details["passthrough_logging_payload"] = (
+            passthrough_logging_payload
+        )
         if self.is_vertex_route(url_route):
             vertex_passthrough_logging_handler_result = (
                 VertexPassthroughLoggingHandler.vertex_passthrough_handler(

litellm/types/passthrough_endpoints/pass_through_endpoints.py

@@ -14,5 +14,21 @@ class PassthroughStandardLoggingPayload(TypedDict, total=False):
     """
 
     url: str
+    """
+    The full url of the request
+    """
+
+    request_method: Optional[str]
+    """
+    The method of the request
+    "GET", "POST", "PUT", "DELETE", etc.
+    """
+
     request_body: Optional[dict]
+    """
+    The body of the request
+    """
     response_body: Optional[dict]  # only tracked for non-streaming responses
+    """
+    The body of the response
+    """

tests/pass_through_unit_tests/test_custom_logger_passthrough.py

@@ -0,0 +1,155 @@
+import json
+import os
+import sys
+from datetime import datetime
+from unittest.mock import AsyncMock, Mock, patch, MagicMock
+from typing import Optional
+from fastapi import Request
+import pytest
+import asyncio
+
+sys.path.insert(
+    0, os.path.abspath("../..")
+)  # Adds the parent directory to the system path
+
+import litellm
+from litellm.proxy._types import UserAPIKeyAuth
+from litellm.types.passthrough_endpoints.pass_through_endpoints import PassthroughStandardLoggingPayload
+from litellm.integrations.custom_logger import CustomLogger
+from litellm.proxy.pass_through_endpoints.pass_through_endpoints import pass_through_request
+
+class TestCustomLogger(CustomLogger):
+    def __init__(self):
+        self.logged_kwargs: Optional[dict] = None
+
+    async def async_log_success_event(self, kwargs, response_obj, start_time, end_time):
+        print("in async log success event kwargs", json.dumps(kwargs, indent=4, default=str))
+        self.logged_kwargs = kwargs
+
+@pytest.mark.asyncio
+async def test_assistants_passthrough_logging():
+    test_custom_logger = TestCustomLogger()
+    litellm._async_success_callback = [test_custom_logger]
+
+    TARGET_URL = "https://api.openai.com/v1/assistants"
+    REQUEST_BODY = {
+        "instructions": "You are a personal math tutor. When asked a question, write and run Python code to answer the question.",
+        "name": "Math Tutor",
+        "tools": [{"type": "code_interpreter"}],
+        "model": "gpt-4o"
+    }
+    TARGET_METHOD = "POST"
+
+    result = await pass_through_request(
+        request=Request(
+            scope={
+                "type": "http",
+                "method": TARGET_METHOD,
+                "path": "/v1/assistants",
+                "query_string": b"",
+                "headers": [
+                    (b"content-type", b"application/json"),
+                    (b"authorization", f"Bearer {os.getenv('OPENAI_API_KEY')}".encode()),
+                    (b"openai-beta", b"assistants=v2")
+                ]
+            },
+        ),
+        target=TARGET_URL,
+        custom_headers={
+            "Content-Type": "application/json",
+            "Authorization": f"Bearer {os.getenv('OPENAI_API_KEY')}",
+            "OpenAI-Beta": "assistants=v2"
+        },
+        user_api_key_dict=UserAPIKeyAuth(
+            api_key="test",
+            user_id="test",
+            team_id="test",
+            end_user_id="test",
+        ),
+        custom_body=REQUEST_BODY,
+        forward_headers=False,
+        merge_query_params=False,
+    )
+
+    print("got result", result)
+    print("result status code", result.status_code)
+    print("result content", result.body)
+    
+    await asyncio.sleep(1)
+
+    assert test_custom_logger.logged_kwargs is not None
+    passthrough_logging_payload: Optional[PassthroughStandardLoggingPayload] = test_custom_logger.logged_kwargs["passthrough_logging_payload"]
+    assert passthrough_logging_payload is not None
+    assert passthrough_logging_payload["url"] == TARGET_URL
+    assert passthrough_logging_payload["request_body"] == REQUEST_BODY
+
+    # assert that the response body content matches the response body content
+    client_facing_response_body = json.loads(result.body)
+    assert passthrough_logging_payload["response_body"]  == client_facing_response_body
+
+    # assert that the request method is correct
+    assert passthrough_logging_payload["request_method"] == TARGET_METHOD
+
+@pytest.mark.asyncio
+async def test_threads_passthrough_logging():
+    test_custom_logger = TestCustomLogger()
+    litellm._async_success_callback = [test_custom_logger]
+
+    TARGET_URL = "https://api.openai.com/v1/threads"
+    REQUEST_BODY = {} 
+    TARGET_METHOD = "POST"
+
+    result = await pass_through_request(
+        request=Request(
+            scope={
+                "type": "http",
+                "method": TARGET_METHOD,
+                "path": "/v1/threads",
+                "query_string": b"",
+                "headers": [
+                    (b"content-type", b"application/json"),
+                    (b"authorization", f"Bearer {os.getenv('OPENAI_API_KEY')}".encode()),
+                    (b"openai-beta", b"assistants=v2")
+                ]
+            },
+        ),
+        target=TARGET_URL,
+        custom_headers={
+            "Content-Type": "application/json",
+            "Authorization": f"Bearer {os.getenv('OPENAI_API_KEY')}",
+            "OpenAI-Beta": "assistants=v2"
+        },
+        user_api_key_dict=UserAPIKeyAuth(
+            api_key="test",
+            user_id="test",
+            team_id="test",
+            end_user_id="test",
+        ),
+        custom_body=REQUEST_BODY,
+        forward_headers=False,
+        merge_query_params=False,
+    )
+
+    print("got result", result)
+    print("result status code", result.status_code)
+    print("result content", result.body)
+    
+    await asyncio.sleep(1)
+
+    assert test_custom_logger.logged_kwargs is not None
+    passthrough_logging_payload = test_custom_logger.logged_kwargs["passthrough_logging_payload"]
+    assert passthrough_logging_payload is not None
+    
+    # Fix for TypedDict access errors
+    assert passthrough_logging_payload.get("url") == TARGET_URL
+    assert passthrough_logging_payload.get("request_body") == REQUEST_BODY
+
+    # Fix for json.loads error with potential memoryview
+    response_body = result.body
+    client_facing_response_body = json.loads(response_body)
+    
+    assert passthrough_logging_payload.get("response_body") == client_facing_response_body
+    assert passthrough_logging_payload.get("request_method") == TARGET_METHOD
+
+
+

tests/pass_through_unit_tests/test_pass_through_unit_tests.py

@@ -17,7 +17,7 @@ import pytest
 import litellm
 from typing import AsyncGenerator
 from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLoggingObj
-from litellm.proxy.pass_through_endpoints.types import EndpointType
+from litellm.types.passthrough_endpoints.pass_through_endpoints import EndpointType
 from litellm.proxy.pass_through_endpoints.success_handler import (
     PassThroughEndpointLogging,
 )
@@ -34,7 +34,7 @@ from litellm.proxy.pass_through_endpoints.pass_through_endpoints import (
     _init_kwargs_for_pass_through_endpoint,
     _update_metadata_with_tags_in_header,
 )
-from litellm.proxy.pass_through_endpoints.types import PassthroughStandardLoggingPayload
+from litellm.types.passthrough_endpoints.pass_through_endpoints import PassthroughStandardLoggingPayload
 
 
 @pytest.fixture
@@ -115,6 +115,15 @@ def test_init_kwargs_for_pass_through_endpoint_basic(
         user_api_key_dict=mock_user_api_key_dict,
         passthrough_logging_payload=passthrough_payload,
         litellm_call_id="test-call-id",
+        logging_obj=LiteLLMLoggingObj(
+            model="test-model",
+            messages=[],
+            stream=False,
+            call_type="test-call-type",
+            start_time=datetime.now(),
+            litellm_call_id="test-call-id",
+            function_id="test-function-id",
+        ),
     )
 
     assert result["call_type"] == "pass_through_endpoint"
@@ -158,6 +167,15 @@ def test_init_kwargs_with_litellm_metadata(mock_request, mock_user_api_key_dict)
         passthrough_logging_payload=passthrough_payload,
         _parsed_body=parsed_body,
         litellm_call_id="test-call-id",
+        logging_obj=LiteLLMLoggingObj(
+            model="test-model",
+            messages=[],
+            stream=False,
+            call_type="test-call-type",
+            start_time=datetime.now(),
+            litellm_call_id="test-call-id",
+            function_id="test-function-id",
+        ),
     )
 
     # Check that litellm_metadata was merged with default metadata
@@ -183,6 +201,15 @@ def test_init_kwargs_with_tags_in_header(mock_request, mock_user_api_key_dict):
         user_api_key_dict=mock_user_api_key_dict,
         passthrough_logging_payload=passthrough_payload,
         litellm_call_id="test-call-id",
+        logging_obj=LiteLLMLoggingObj(
+            model="test-model",
+            messages=[],
+            stream=False,
+            call_type="test-call-type",
+            start_time=datetime.now(),
+            litellm_call_id="test-call-id",
+            function_id="test-function-id",
+        ),
     )
 
     # Check that tags were added to metadata

tests/pass_through_unit_tests/test_unit_test_streaming.py

@@ -13,7 +13,8 @@ import pytest
 import litellm
 from typing import AsyncGenerator
 from litellm.litellm_core_utils.litellm_logging import Logging as LiteLLMLoggingObj
-from litellm.proxy.pass_through_endpoints.types import EndpointType
+from litellm.types.passthrough_endpoints.pass_through_endpoints import EndpointType
+from litellm.types.passthrough_endpoints.pass_through_endpoints import PassthroughStandardLoggingPayload
 from litellm.proxy.pass_through_endpoints.success_handler import (
     PassThroughEndpointLogging,
 )