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import json | ||
import logging | ||
import os | ||
import socket | ||
import time | ||
from typing import Any | ||
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def create_logger() -> logging.Logger: | ||
tz = time.strftime("%z") | ||
logging.basicConfig( | ||
format=( | ||
f"[%(asctime)s.%(msecs)03d {tz}] " | ||
f"[%(process)s] [{socket.gethostname()}] [%(pathname)s L%(lineno)d] " | ||
"[%(levelname)s] %(message)s" | ||
), | ||
level=os.environ.get("LOGLEVEL", "INFO").upper(), | ||
datefmt="%Y-%m-%d %H:%M:%S", | ||
) | ||
logger = logging.getLogger(__name__) | ||
return logger | ||
class StructuredMessage: | ||
def __init__(self, **kwargs: Any) -> None: | ||
self.kwargs = kwargs | ||
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def __str__(self) -> str: | ||
result = {} | ||
result.update(self.kwargs) | ||
return json.dumps(result) | ||
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logger = create_logger() | ||
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sm = StructuredMessage | ||
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class OnelineFormatter(logging.Formatter): | ||
def formatException(self, exc_info: Any) -> str: | ||
result = super().formatException(exc_info) | ||
return repr(result) | ||
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def format(self, record: logging.LogRecord) -> str: | ||
result = super().format(record) | ||
if record.exc_text: | ||
result = result.replace("\n", "") | ||
result_dict = record.__dict__ | ||
result_dict["host"] = socket.gethostname() | ||
return str(sm(**result_dict)) | ||
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class StructuredLogger: | ||
DEFAULT_LEVEL = "INFO" | ||
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@staticmethod | ||
def create_logger() -> logging.Logger: | ||
logger = logging.getLogger(__name__) | ||
log_handler = logging.StreamHandler() | ||
formatter = OnelineFormatter(datefmt="%Y-%m-%d %H:%M:%S") | ||
log_handler.setFormatter(formatter) | ||
logger.addHandler(log_handler) | ||
logger.setLevel(os.getenv("LOG_LEVEL", StructuredLogger.DEFAULT_LEVEL).upper()) | ||
return logger | ||
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logger = StructuredLogger.create_logger() |
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from cloudrunfastapi.logger import logger | ||
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def test_logger() -> None: | ||
logger.exception("this is an exception") |