stable/freqtrade/rpc/api_server/ws/proxy.py
2022-08-29 13:41:15 -06:00

62 lines
1.8 KiB
Python

from typing import Union
from fastapi import WebSocket as FastAPIWebSocket
from websockets import WebSocketClientProtocol as WebSocket
from freqtrade.rpc.api_server.ws.types import WebSocketType
class WebSocketProxy:
"""
WebSocketProxy object to bring the FastAPIWebSocket and websockets.WebSocketClientProtocol
under the same API
"""
def __init__(self, websocket: WebSocketType):
self._websocket: Union[FastAPIWebSocket, WebSocket] = websocket
async def send(self, data):
"""
Send data on the wrapped websocket
"""
if isinstance(data, str):
data = data.encode()
if hasattr(self._websocket, "send_bytes"):
await self._websocket.send_bytes(data)
else:
await self._websocket.send(data)
async def recv(self):
"""
Receive data on the wrapped websocket
"""
if hasattr(self._websocket, "receive_bytes"):
return await self._websocket.receive_bytes()
else:
return await self._websocket.recv()
async def ping(self):
"""
Ping the websocket, not supported by FastAPI WebSockets
"""
if hasattr(self._websocket, "ping"):
return await self._websocket.ping()
return False
async def close(self, code: int = 1000):
"""
Close the websocket connection, only supported by FastAPI WebSockets
"""
if hasattr(self._websocket, "close"):
return await self._websocket.close(code)
pass
async def accept(self):
"""
Accept the WebSocket connection, only support by FastAPI WebSockets
"""
if hasattr(self._websocket, "accept"):
return await self._websocket.accept()
pass