Python Logging 설정

import logging
import logging.config
import json
import sys
from datetime import datetime

class JsonFormatter(logging.Formatter):
    """로그를 JSON 형식으로 변환하는 포맷터입니다."""
    def format(self, record):
        log_record = {
            "timestamp": self.formatTime(record, self.datefmt),
            "level": record.levelname,
            "logger": record.name,
            "message": record.getMessage(),
            "module": record.module,
            "line": record.lineno,
        }
        if record.exc_info:
            log_record["exception"] = self.formatException(record.exc_info)
        return json.dumps(log_record)

LOGGING_CONFIG = {
    "version": 1,
    "disable_existing_loggers": False,
    "formatters": {
        "standard": {
            "format": "%(asctime)s [%(levelname)s] %(name)s: %(message)s"
        },
        "json": {
            "()": JsonFormatter,
            "datefmt": "%Y-%m-%dT%H:%M:%S"
        },
    },
    "handlers": {
        "console": {
            "level": "INFO",
            "class": "logging.StreamHandler",
            "formatter": "standard",
            "stream": sys.stdout,
        },
        "file": {
            "level": "DEBUG",
            "class": "logging.handlers.RotatingFileHandler",
            "formatter": "json",
            "filename": "app.log",
            "maxBytes": 10485760,  # 10MB
            "backupCount": 5,
            "encoding": "utf8",
        },
    },
    "loggers": {
        "": {  # root logger
            "handlers": ["console", "file"],
            "level": "DEBUG",
            "propagate": True,
        },
        "uvicorn.error": {
            "level": "INFO",
        },
        "uvicorn.access": {
            "handlers": ["console"],
            "level": "INFO",
            "propagate": False,
        },
    },
}

def setup_logging():
    logging.config.dictConfig(LOGGING_CONFIG)

if __name__ == "__main__":
    setup_logging()
    logger = logging.getLogger("my_app")
    
    logger.info("Application started")
    logger.debug("Debugging database connection")
    
    try:
        1 / 0
    except Exception:
        logger.exception("An error occurred during calculation")