forked from hkc/mastoposter
45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
from asyncio import exceptions
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from json import loads
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from logging import getLogger
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from typing import AsyncGenerator
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from urllib.parse import urlencode
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from mastoposter.types import Status
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logger = getLogger("sources")
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async def websocket_source(
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url: str, reconnect: bool = False, **params
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) -> AsyncGenerator[Status, None]:
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from websockets.client import connect
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from websockets.exceptions import WebSocketException
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url = f"{url}?" + urlencode({"stream": "list", **params})
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while True:
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try:
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async with connect(url) as ws:
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while (msg := await ws.recv()) is not None:
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event = loads(msg)
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if "error" in event:
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raise Exception(event["error"])
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if event["event"] == "update":
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yield Status.from_dict(loads(event["payload"]))
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else:
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logger.warn("unknown event type %r", event["event"])
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logger.debug("data: %r", event)
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except (
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WebSocketException,
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TimeoutError,
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exceptions.TimeoutError,
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) as e:
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if not reconnect:
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raise
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else:
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logger.warn("%r caught, reconnecting", e)
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else:
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logger.info(
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"WebSocket closed connection without any errors, "
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"but we're not done yet"
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)
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