mirror of
https://github.com/BerriAI/litellm.git
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f9d0bcc5a1
* feat(azure/realtime): initial working commit for proxy azure openai realtime endpoint support Adds support for passing /v1/realtime calls via litellm proxy * feat(realtime_api/main.py): abstraction for handling openai realtime api calls * feat(router.py): add `arealtime()` endpoint in router for realtime api calls Allows using `model_list` in proxy for realtime as well * fix: make realtime api a private function Structure might change based on feedback. Make that clear to users. * build(requirements.txt): add websockets to the requirements.txt * feat(openai/realtime): add openai /v1/realtime api support
81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
"""
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This file contains the calling Azure OpenAI's `/openai/realtime` endpoint.
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This requires websockets, and is currently only supported on LiteLLM Proxy.
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"""
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import asyncio
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from typing import Any, Optional
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from ..openai import OpenAIChatCompletion
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async def forward_messages(client_ws: Any, backend_ws: Any):
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import websockets
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try:
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while True:
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message = await backend_ws.recv()
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await client_ws.send_text(message)
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except websockets.exceptions.ConnectionClosed: # type: ignore
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pass
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class OpenAIRealtime(OpenAIChatCompletion):
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def _construct_url(self, api_base: str, model: str) -> str:
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"""
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Example output:
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"BACKEND_WS_URL = "wss://localhost:8080/v1/realtime?model=gpt-4o-realtime-preview-2024-10-01"";
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"""
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api_base = api_base.replace("https://", "wss://")
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api_base = api_base.replace("http://", "ws://")
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return f"{api_base}/v1/realtime?model={model}"
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async def async_realtime(
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self,
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model: str,
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websocket: Any,
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api_base: Optional[str] = None,
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api_key: Optional[str] = None,
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client: Optional[Any] = None,
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timeout: Optional[float] = None,
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):
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import websockets
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if api_base is None:
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raise ValueError("api_base is required for Azure OpenAI calls")
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if api_key is None:
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raise ValueError("api_key is required for Azure OpenAI calls")
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url = self._construct_url(api_base, model)
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try:
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async with websockets.connect( # type: ignore
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url,
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extra_headers={
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"Authorization": f"Bearer {api_key}", # type: ignore
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"OpenAI-Beta": "realtime=v1",
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},
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) as backend_ws:
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forward_task = asyncio.create_task(
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forward_messages(websocket, backend_ws)
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)
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try:
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while True:
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message = await websocket.receive_text()
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await backend_ws.send(message)
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except websockets.exceptions.ConnectionClosed: # type: ignore
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forward_task.cancel()
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finally:
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if not forward_task.done():
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forward_task.cancel()
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try:
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await forward_task
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except asyncio.CancelledError:
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pass
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except websockets.exceptions.InvalidStatusCode as e: # type: ignore
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await websocket.close(code=e.status_code, reason=str(e))
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except Exception as e:
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await websocket.close(code=1011, reason=f"Internal server error: {str(e)}")
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