fastapi/backend/app/utils/log_util.py

import logging
import sys
from logging.handlers import TimedRotatingFileHandler, SocketHandler
from pathlib import Path
from app.config import settings

class Log:
    ''''''
    def __init__(self):
        self.available_handlers: list = LogHandlers().get_handlers()
        
    def get_logger(self, logger_name: str):
        """
        :param logger_name:
        :return:
        """
        logger = logging.getLogger(logger_name)
        logger.setLevel(logging.DEBUG)
        if logger.hasHandlers():
            logger.handlers.clear()
        for handler in self.available_handlers:
            logger.addHandler(handler)
        logger.propagate = False
        return logger

class LogHandlers:

    def __init__(self):
        self.formatter = logging.Formatter("%(asctime)s - %(thread)d - %(name)s - %(levelname)s - %(message)s")
        self.log_filename = Path().joinpath(
            settings.APP_CONFIG.LOGS_DIR, "fastapi.log")
        self.rotation = "midnight"

    def get_console_handler(self):
        """

        :return:
        """
        console_handler = logging.StreamHandler(sys.stdout.flush())
        console_handler.setFormatter(self.formatter)
        return console_handler

    def get_file_handler(self):
        """

        :return:
        """
        file_handler = TimedRotatingFileHandler(
            self.log_filename, when=self.rotation)
        file_handler.setFormatter(self.formatter)
        return file_handler

    def get_socket_handler(self):
        socket_handler = SocketHandler('127.0.0.1', 19996)  # default listening address
        return socket_handler

    def get_handlers(self):
        return [self.get_console_handler(), self.get_file_handler(), self.get_socket_handler()]