Yet another log to JSON library for Python.
I needed a library that integrated well with applications that mixed logging using built-in logging outputs and JSON output.
I was also unable to find a library that worked with logging.QueueHandler
Thus this library was born.
pip install log-to-json
or
conda install log-to-json -c conda-forge
from log_to_json import JsonFormatter
import logging
logger = logging.getLogger()
handler = logging.StreamHandler()
json_formatter = JsonFormatter(keys=("name",))
handler.setFormatter(json_formatter)
logger.critical({"app-name": "my-app", "app_version": "1.0"})
# produces the log
{"app-name": "my-app", "app_version": "1.0", "name": "root"}
from log_to_json import JsonFormatter
import logging
logger = logging.getLogger()
handler = logging.StreamHandler()
def finalizer(message_dict):
"""rename name to logger_name"""
message_dict["logger_name"] = message_dict.pop("name")
return message_dict
json_formatter = JsonFormatter(
keys=("message", "name", "user"),
formatters={"user": str.upper},
finalizer=finalizer
)
handler.setFormatter(json_formatter)
logger.critical("critical failure", extra={"user": "guest"})
# produces the message
{"message": "critical failure", "user": "GUEST", "logger_name": "root"}