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import io
import json
from typing import TYPE_CHECKING, Any, Optional, Tuple, Union
import httpx # type: ignore
import litellm
import litellm.litellm_core_utils
import litellm.types
import litellm.types.utils
from litellm.llms.base_llm.chat.transformation import BaseConfig
from litellm.llms.base_llm.embedding.transformation import BaseEmbeddingConfig
from litellm.llms.base_llm.rerank.transformation import BaseRerankConfig
from litellm.llms.custom_httpx.http_handler import (
AsyncHTTPHandler,
HTTPHandler,
_get_httpx_client,
get_async_httpx_client,
)
from litellm.types.rerank import OptionalRerankParams, RerankResponse
from litellm.types.utils import EmbeddingResponse, FileTypes, TranscriptionResponse
from litellm.utils import CustomStreamWrapper, ModelResponse, ProviderConfigManager
if TYPE_CHECKING:
from litellm.litellm_core_utils.litellm_logging import Logging as _LiteLLMLoggingObj
LiteLLMLoggingObj = _LiteLLMLoggingObj
else:
LiteLLMLoggingObj = Any
class BaseLLMHTTPHandler:
async def _make_common_async_call(
self,
async_httpx_client: AsyncHTTPHandler,
provider_config: BaseConfig,
api_base: str,
headers: dict,
data: dict,
timeout: Union[float, httpx.Timeout],
litellm_params: dict,
stream: bool = False,
) -> httpx.Response:
"""Common implementation across stream + non-stream calls. Meant to ensure consistent error-handling."""
max_retry_on_unprocessable_entity_error = (
provider_config.max_retry_on_unprocessable_entity_error
)
response: Optional[httpx.Response] = None
for i in range(max(max_retry_on_unprocessable_entity_error, 1)):
try:
response = await async_httpx_client.post(
url=api_base,
headers=headers,
data=json.dumps(data),
timeout=timeout,
stream=stream,
)
except httpx.HTTPStatusError as e:
hit_max_retry = i + 1 == max_retry_on_unprocessable_entity_error
should_retry = provider_config.should_retry_llm_api_inside_llm_translation_on_http_error(
e=e, litellm_params=litellm_params
)
if should_retry and not hit_max_retry:
data = (
provider_config.transform_request_on_unprocessable_entity_error(
e=e, request_data=data
)
)
continue
else:
raise self._handle_error(e=e, provider_config=provider_config)
except Exception as e:
raise self._handle_error(e=e, provider_config=provider_config)
break
if response is None:
raise provider_config.get_error_class(
error_message="No response from the API",
status_code=422, # don't retry on this error
headers={},
)
return response
def _make_common_sync_call(
self,
sync_httpx_client: HTTPHandler,
provider_config: BaseConfig,
api_base: str,
headers: dict,
data: dict,
timeout: Union[float, httpx.Timeout],
litellm_params: dict,
stream: bool = False,
) -> httpx.Response:
max_retry_on_unprocessable_entity_error = (
provider_config.max_retry_on_unprocessable_entity_error
)
response: Optional[httpx.Response] = None
for i in range(max(max_retry_on_unprocessable_entity_error, 1)):
try:
response = sync_httpx_client.post(
url=api_base,
headers=headers,
data=json.dumps(data),
timeout=timeout,
stream=stream,
)
except httpx.HTTPStatusError as e:
hit_max_retry = i + 1 == max_retry_on_unprocessable_entity_error
should_retry = provider_config.should_retry_llm_api_inside_llm_translation_on_http_error(
e=e, litellm_params=litellm_params
)
if should_retry and not hit_max_retry:
data = (
provider_config.transform_request_on_unprocessable_entity_error(
e=e, request_data=data
)
)
continue
else:
raise self._handle_error(e=e, provider_config=provider_config)
except Exception as e:
raise self._handle_error(e=e, provider_config=provider_config)
break
if response is None:
raise provider_config.get_error_class(
error_message="No response from the API",
status_code=422, # don't retry on this error
headers={},
)
return response
async def async_completion(
self,
custom_llm_provider: str,
provider_config: BaseConfig,
api_base: str,
headers: dict,
data: dict,
timeout: Union[float, httpx.Timeout],
model: str,
model_response: ModelResponse,
logging_obj: LiteLLMLoggingObj,
messages: list,
optional_params: dict,
litellm_params: dict,
encoding: Any,
api_key: Optional[str] = None,
client: Optional[AsyncHTTPHandler] = None,
):
if client is None:
async_httpx_client = get_async_httpx_client(
llm_provider=litellm.LlmProviders(custom_llm_provider),
params={"ssl_verify": litellm_params.get("ssl_verify", None)},
)
else:
async_httpx_client = client
response = await self._make_common_async_call(
async_httpx_client=async_httpx_client,
provider_config=provider_config,
api_base=api_base,
headers=headers,
data=data,
timeout=timeout,
litellm_params=litellm_params,
stream=False,
)
return provider_config.transform_response(
model=model,
raw_response=response,
model_response=model_response,
logging_obj=logging_obj,
api_key=api_key,
request_data=data,
messages=messages,
optional_params=optional_params,
litellm_params=litellm_params,
encoding=encoding,
)
def completion(
self,
model: str,
messages: list,
api_base: str,
custom_llm_provider: str,
model_response: ModelResponse,
encoding,
logging_obj: LiteLLMLoggingObj,
optional_params: dict,
timeout: Union[float, httpx.Timeout],
litellm_params: dict,
acompletion: bool,
stream: Optional[bool] = False,
fake_stream: bool = False,
api_key: Optional[str] = None,
headers: Optional[dict] = {},
client: Optional[Union[HTTPHandler, AsyncHTTPHandler]] = None,
):
provider_config = ProviderConfigManager.get_provider_chat_config(
model=model, provider=litellm.LlmProviders(custom_llm_provider)
)
# get config from model, custom llm provider
headers = provider_config.validate_environment(
api_key=api_key,
headers=headers or {},
model=model,
messages=messages,
optional_params=optional_params,
api_base=api_base,
)
api_base = provider_config.get_complete_url(
api_base=api_base,
model=model,
optional_params=optional_params,
stream=stream,
)
data = provider_config.transform_request(
model=model,
messages=messages,
optional_params=optional_params,
litellm_params=litellm_params,
headers=headers,
)
## LOGGING
logging_obj.pre_call(
input=messages,
api_key=api_key,
additional_args={
"complete_input_dict": data,
"api_base": api_base,
"headers": headers,
},
)
if acompletion is True:
if stream is True:
if fake_stream is not True:
data["stream"] = stream
return self.acompletion_stream_function(
model=model,
messages=messages,
api_base=api_base,
headers=headers,
custom_llm_provider=custom_llm_provider,
provider_config=provider_config,
timeout=timeout,
logging_obj=logging_obj,
data=data,
fake_stream=fake_stream,
client=(
client
if client is not None and isinstance(client, AsyncHTTPHandler)
else None
),
litellm_params=litellm_params,
)
else:
return self.async_completion(
custom_llm_provider=custom_llm_provider,
provider_config=provider_config,
api_base=api_base,
headers=headers,
data=data,
timeout=timeout,
model=model,
model_response=model_response,
logging_obj=logging_obj,
api_key=api_key,
messages=messages,
optional_params=optional_params,
litellm_params=litellm_params,
encoding=encoding,
client=(
client
if client is not None and isinstance(client, AsyncHTTPHandler)
else None
),
)
if stream is True:
if fake_stream is not True:
data["stream"] = stream
completion_stream, headers = self.make_sync_call(
provider_config=provider_config,
api_base=api_base,
headers=headers, # type: ignore
data=data,
model=model,
messages=messages,
logging_obj=logging_obj,
timeout=timeout,
fake_stream=fake_stream,
client=(
client
if client is not None and isinstance(client, HTTPHandler)
else None
),
litellm_params=litellm_params,
)
return CustomStreamWrapper(
completion_stream=completion_stream,
model=model,
custom_llm_provider=custom_llm_provider,
logging_obj=logging_obj,
)
if client is None or not isinstance(client, HTTPHandler):
sync_httpx_client = _get_httpx_client(
params={"ssl_verify": litellm_params.get("ssl_verify", None)}
)
else:
sync_httpx_client = client
response = self._make_common_sync_call(
sync_httpx_client=sync_httpx_client,
provider_config=provider_config,
api_base=api_base,
headers=headers,
data=data,
timeout=timeout,
litellm_params=litellm_params,
)
return provider_config.transform_response(
model=model,
raw_response=response,
model_response=model_response,
logging_obj=logging_obj,
api_key=api_key,
request_data=data,
messages=messages,
optional_params=optional_params,
litellm_params=litellm_params,
encoding=encoding,
)
def make_sync_call(
self,
provider_config: BaseConfig,
api_base: str,
headers: dict,
data: dict,
model: str,
messages: list,
logging_obj,
litellm_params: dict,
timeout: Union[float, httpx.Timeout],
fake_stream: bool = False,
client: Optional[HTTPHandler] = None,
) -> Tuple[Any, dict]:
if client is None or not isinstance(client, HTTPHandler):
sync_httpx_client = _get_httpx_client(
{
"ssl_verify": litellm_params.get("ssl_verify", None),
}
)
else:
sync_httpx_client = client
stream = True
if fake_stream is True:
stream = False
response = self._make_common_sync_call(
sync_httpx_client=sync_httpx_client,
provider_config=provider_config,
api_base=api_base,
headers=headers,
data=data,
timeout=timeout,
litellm_params=litellm_params,
stream=stream,
)
if fake_stream is True:
completion_stream = provider_config.get_model_response_iterator(
streaming_response=response.json(), sync_stream=True
)
else:
completion_stream = provider_config.get_model_response_iterator(
streaming_response=response.iter_lines(), sync_stream=True
)
# LOGGING
logging_obj.post_call(
input=messages,
api_key="",
original_response="first stream response received",
additional_args={"complete_input_dict": data},
)
return completion_stream, dict(response.headers)
async def acompletion_stream_function(
self,
model: str,
messages: list,
api_base: str,
custom_llm_provider: str,
headers: dict,
provider_config: BaseConfig,
timeout: Union[float, httpx.Timeout],
logging_obj: LiteLLMLoggingObj,
data: dict,
litellm_params: dict,
fake_stream: bool = False,
client: Optional[AsyncHTTPHandler] = None,
):
completion_stream, _response_headers = await self.make_async_call_stream_helper(
custom_llm_provider=custom_llm_provider,
provider_config=provider_config,
api_base=api_base,
headers=headers,
data=data,
messages=messages,
logging_obj=logging_obj,
timeout=timeout,
fake_stream=fake_stream,
client=client,
litellm_params=litellm_params,
)
streamwrapper = CustomStreamWrapper(
completion_stream=completion_stream,
model=model,
custom_llm_provider=custom_llm_provider,
logging_obj=logging_obj,
)
return streamwrapper
async def make_async_call_stream_helper(
self,
custom_llm_provider: str,
provider_config: BaseConfig,
api_base: str,
headers: dict,
data: dict,
messages: list,
logging_obj: LiteLLMLoggingObj,
timeout: Union[float, httpx.Timeout],
litellm_params: dict,
fake_stream: bool = False,
client: Optional[AsyncHTTPHandler] = None,
) -> Tuple[Any, httpx.Headers]:
"""
Helper function for making an async call with stream.
Handles fake stream as well.
"""
if client is None:
async_httpx_client = get_async_httpx_client(
llm_provider=litellm.LlmProviders(custom_llm_provider),
params={"ssl_verify": litellm_params.get("ssl_verify", None)},
)
else:
async_httpx_client = client
stream = True
if fake_stream is True:
stream = False
response = await self._make_common_async_call(
async_httpx_client=async_httpx_client,
provider_config=provider_config,
api_base=api_base,
headers=headers,
data=data,
timeout=timeout,
litellm_params=litellm_params,
stream=stream,
)
if fake_stream is True:
completion_stream = provider_config.get_model_response_iterator(
streaming_response=response.json(), sync_stream=False
)
else:
completion_stream = provider_config.get_model_response_iterator(
streaming_response=response.aiter_lines(), sync_stream=False
)
# LOGGING
logging_obj.post_call(
input=messages,
api_key="",
original_response="first stream response received",
additional_args={"complete_input_dict": data},
)
return completion_stream, response.headers
def embedding(
self,
model: str,
input: list,
timeout: float,
custom_llm_provider: str,
logging_obj: LiteLLMLoggingObj,
api_base: Optional[str],
optional_params: dict,
litellm_params: dict,
model_response: EmbeddingResponse,
api_key: Optional[str] = None,
client: Optional[Union[HTTPHandler, AsyncHTTPHandler]] = None,
aembedding: bool = False,
headers={},
) -> EmbeddingResponse:
provider_config = ProviderConfigManager.get_provider_embedding_config(
model=model, provider=litellm.LlmProviders(custom_llm_provider)
)
# get config from model, custom llm provider
headers = provider_config.validate_environment(
api_key=api_key,
headers=headers,
model=model,
messages=[],
optional_params=optional_params,
)
api_base = provider_config.get_complete_url(
api_base=api_base,
model=model,
optional_params=optional_params,
)
data = provider_config.transform_embedding_request(
model=model,
input=input,
optional_params=optional_params,
headers=headers,
)
## LOGGING
logging_obj.pre_call(
input=input,
api_key=api_key,
additional_args={
"complete_input_dict": data,
"api_base": api_base,
"headers": headers,
},
)
if aembedding is True:
return self.aembedding( # type: ignore
request_data=data,
api_base=api_base,
headers=headers,
model=model,
custom_llm_provider=custom_llm_provider,
provider_config=provider_config,
model_response=model_response,
logging_obj=logging_obj,
api_key=api_key,
timeout=timeout,
client=client,
optional_params=optional_params,
litellm_params=litellm_params,
)
if client is None or not isinstance(client, HTTPHandler):
sync_httpx_client = _get_httpx_client()
else:
sync_httpx_client = client
try:
response = sync_httpx_client.post(
url=api_base,
headers=headers,
data=json.dumps(data),
timeout=timeout,
)
except Exception as e:
raise self._handle_error(
e=e,
provider_config=provider_config,
)
return provider_config.transform_embedding_response(
model=model,
raw_response=response,
model_response=model_response,
logging_obj=logging_obj,
api_key=api_key,
request_data=data,
optional_params=optional_params,
litellm_params=litellm_params,
)
async def aembedding(
self,
request_data: dict,
api_base: str,
headers: dict,
model: str,
custom_llm_provider: str,
provider_config: BaseEmbeddingConfig,
model_response: EmbeddingResponse,
logging_obj: LiteLLMLoggingObj,
optional_params: dict,
litellm_params: dict,
api_key: Optional[str] = None,
timeout: Optional[Union[float, httpx.Timeout]] = None,
client: Optional[Union[HTTPHandler, AsyncHTTPHandler]] = None,
) -> EmbeddingResponse:
if client is None or not isinstance(client, AsyncHTTPHandler):
async_httpx_client = get_async_httpx_client(
llm_provider=litellm.LlmProviders(custom_llm_provider)
)
else:
async_httpx_client = client
try:
response = await async_httpx_client.post(
url=api_base,
headers=headers,
data=json.dumps(request_data),
timeout=timeout,
)
except Exception as e:
raise self._handle_error(e=e, provider_config=provider_config)
return provider_config.transform_embedding_response(
model=model,
raw_response=response,
model_response=model_response,
logging_obj=logging_obj,
api_key=api_key,
request_data=request_data,
optional_params=optional_params,
litellm_params=litellm_params,
)
def rerank(
self,
model: str,
custom_llm_provider: str,
logging_obj: LiteLLMLoggingObj,
optional_rerank_params: OptionalRerankParams,
timeout: Optional[Union[float, httpx.Timeout]],
model_response: RerankResponse,
_is_async: bool = False,
headers: dict = {},
api_key: Optional[str] = None,
api_base: Optional[str] = None,
client: Optional[Union[HTTPHandler, AsyncHTTPHandler]] = None,
) -> RerankResponse:
provider_config = ProviderConfigManager.get_provider_rerank_config(
model=model, provider=litellm.LlmProviders(custom_llm_provider)
)
# get config from model, custom llm provider
headers = provider_config.validate_environment(
api_key=api_key,
headers=headers,
model=model,
)
api_base = provider_config.get_complete_url(
api_base=api_base,
model=model,
)
data = provider_config.transform_rerank_request(
model=model,
optional_rerank_params=optional_rerank_params,
headers=headers,
)
## LOGGING
logging_obj.pre_call(
input=optional_rerank_params.get("query", ""),
api_key=api_key,
additional_args={
"complete_input_dict": data,
"api_base": api_base,
"headers": headers,
},
)
if _is_async is True:
return self.arerank( # type: ignore
model=model,
request_data=data,
custom_llm_provider=custom_llm_provider,
provider_config=provider_config,
logging_obj=logging_obj,
model_response=model_response,
api_base=api_base,
headers=headers,
api_key=api_key,
timeout=timeout,
client=client,
)
if client is None or not isinstance(client, HTTPHandler):
sync_httpx_client = _get_httpx_client()
else:
sync_httpx_client = client
try:
response = sync_httpx_client.post(
url=api_base,
headers=headers,
data=json.dumps(data),
timeout=timeout,
)
except Exception as e:
raise self._handle_error(
e=e,
provider_config=provider_config,
)
return provider_config.transform_rerank_response(
model=model,
raw_response=response,
model_response=model_response,
logging_obj=logging_obj,
api_key=api_key,
request_data=data,
)
async def arerank(
self,
model: str,
request_data: dict,
custom_llm_provider: str,
provider_config: BaseRerankConfig,
logging_obj: LiteLLMLoggingObj,
model_response: RerankResponse,
api_base: str,
headers: dict,
api_key: Optional[str] = None,
timeout: Optional[Union[float, httpx.Timeout]] = None,
client: Optional[Union[HTTPHandler, AsyncHTTPHandler]] = None,
) -> RerankResponse:
if client is None or not isinstance(client, AsyncHTTPHandler):
async_httpx_client = get_async_httpx_client(
llm_provider=litellm.LlmProviders(custom_llm_provider)
)
else:
async_httpx_client = client
try:
response = await async_httpx_client.post(
url=api_base,
headers=headers,
data=json.dumps(request_data),
timeout=timeout,
)
except Exception as e:
raise self._handle_error(e=e, provider_config=provider_config)
return provider_config.transform_rerank_response(
model=model,
raw_response=response,
model_response=model_response,
logging_obj=logging_obj,
api_key=api_key,
request_data=request_data,
)
def handle_audio_file(self, audio_file: FileTypes) -> bytes:
"""
Processes the audio file input based on its type and returns the binary data.
Args:
audio_file: Can be a file path (str), a tuple (filename, file_content), or binary data (bytes).
Returns:
The binary data of the audio file.
"""
binary_data: bytes # Explicitly declare the type
# Handle the audio file based on type
if isinstance(audio_file, str):
# If it's a file path
with open(audio_file, "rb") as f:
binary_data = f.read() # `f.read()` always returns `bytes`
elif isinstance(audio_file, tuple):
# Handle tuple case
_, file_content = audio_file[:2]
if isinstance(file_content, str):
with open(file_content, "rb") as f:
binary_data = f.read() # `f.read()` always returns `bytes`
elif isinstance(file_content, bytes):
binary_data = file_content
else:
raise TypeError(
f"Unexpected type in tuple: {type(file_content)}. Expected str or bytes."
)
elif isinstance(audio_file, bytes):
# Assume it's already binary data
binary_data = audio_file
elif isinstance(audio_file, io.BufferedReader):
# Handle file-like objects
binary_data = audio_file.read()
else:
raise TypeError(f"Unsupported type for audio_file: {type(audio_file)}")
return binary_data
def audio_transcriptions(
self,
model: str,
audio_file: FileTypes,
optional_params: dict,
model_response: TranscriptionResponse,
timeout: float,
max_retries: int,
logging_obj: LiteLLMLoggingObj,
api_key: Optional[str],
api_base: Optional[str],
custom_llm_provider: str,
client: Optional[Union[HTTPHandler, AsyncHTTPHandler]] = None,
atranscription: bool = False,
headers: dict = {},
) -> TranscriptionResponse:
provider_config = ProviderConfigManager.get_provider_audio_transcription_config(
model=model, provider=litellm.LlmProviders(custom_llm_provider)
)
if provider_config is None:
raise ValueError(
f"No provider config found for model: {model} and provider: {custom_llm_provider}"
)
headers = provider_config.validate_environment(
api_key=api_key,
headers=headers,
model=model,
messages=[],
optional_params=optional_params,
)
if client is None or not isinstance(client, HTTPHandler):
client = _get_httpx_client()
complete_url = provider_config.get_complete_url(
api_base=api_base,
model=model,
optional_params=optional_params,
)
# Handle the audio file based on type
binary_data = self.handle_audio_file(audio_file)
try:
# Make the POST request
response = client.post(
url=complete_url,
headers=headers,
content=binary_data,
timeout=timeout,
)
except Exception as e:
raise self._handle_error(e=e, provider_config=provider_config)
if isinstance(provider_config, litellm.DeepgramAudioTranscriptionConfig):
returned_response = provider_config.transform_audio_transcription_response(
model=model,
raw_response=response,
model_response=model_response,
logging_obj=logging_obj,
request_data={},
optional_params=optional_params,
litellm_params={},
api_key=api_key,
)
return returned_response
return model_response
def _handle_error(
self, e: Exception, provider_config: Union[BaseConfig, BaseRerankConfig]
):
status_code = getattr(e, "status_code", 500)
error_headers = getattr(e, "headers", None)
error_text = getattr(e, "text", str(e))
error_response = getattr(e, "response", None)
if error_headers is None and error_response:
error_headers = getattr(error_response, "headers", None)
if error_response and hasattr(error_response, "text"):
error_text = getattr(error_response, "text", error_text)
if error_headers:
error_headers = dict(error_headers)
else:
error_headers = {}
raise provider_config.get_error_class(
error_message=error_text,
status_code=status_code,
headers=error_headers,
)
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