watchtower dies with I'm trying to filter uvicorn access logs

[geirhoe]

running the code below, produces a warning from watchtower

WatchtowerWarning: Received message after logging system shutdown
warnings.warn("Received message after logging system shutdown", WatchtowerWarning)

and no logs are forwarded to cloudwatch. after the first access to the / path.

using curl: curl -vs http://localhost:8080/ 2>&1

from fastapi import FastAPI, Response
from fastapi.responses import HTMLResponse
import uvicorn
import logging
import watchtower

app = FastAPI()

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger("logger_name")
#    logger.propagate = False
logger.setLevel(logging.INFO)
logger.addHandler(watchtower.CloudWatchLogHandler(
    log_group_name="log_group_name"
))


class EndpointFilter(logging.Filter):
    def filter(self, record: logging.LogRecord) -> bool:
        return record.getMessage().find("/health") == -1


logging.getLogger("uvicorn.access").addFilter(EndpointFilter())


@app.get("/", status_code=200)
async def hello():
    logger.info("hello called")
    return Response(content="world", media_type="text")

if __name__ == "__main__":
    port = 8080
    logger.info(f"Booting up, listening port is set to {port}")
    uvicorn.run(app, host="0.0.0.0", port=port, server_header=False, date_header=False)
    logger.info("Server done")

Please advice.