log_config.json

{
    "version": 1,
    "disable_existing_loggers": false,
    "formatters": {
        "default": {
            "()": "uvicorn.logging.DefaultFormatter",
            "fmt": "%(asctime)s %(levelprefix)s %(message)s",
            "datefmt": "%Y-%m-%d %H:%M:%S"
        },
        "access": {
            "()": "uvicorn.logging.AccessFormatter",
            "fmt": "%(asctime)s %(levelprefix)s %(message)s",
            "datefmt": "%Y-%m-%d %H:%M:%S"
        }
    },
    "handlers": {
        "default": {
            "formatter": "default",
            "class": "logging.StreamHandler",
            "stream": "ext://sys.stderr"
        },
        "access": {
            "formatter": "access",
            "class": "logging.StreamHandler",
            "stream": "ext://sys.stdout"
        }
    },
    "loggers": {
        "uvicorn": {"handlers": ["default"], "level": "INFO"},
        "uvicorn.error": {"level": "INFO"},
        "uvicorn.access": {"handlers": ["access"], "level": "INFO", "propagate": false}
    }
}