python日志记录。自定义字段

Question

我有一个简单的Flask应用程序正在运行。我需要将日志消息作为json。很好

但是如何自定义日志记录的值？

threadName->线程名

级别名称->级别名称

等...

import time
import datetime
import connexion
import logmatic
import logging
import pytz

app = connexion.App(__name__, specification_dir='./')
app.add_api('swagger.json')

logger = logging.getLogger()

handler = logging.StreamHandler()
handler.setFormatter(logmatic.JsonFormatter(fmt="%(threadName)s %(message)s %(levelname)s %(levelno)s) %(name)s"))

logger.addHandler(handler)
logger.setLevel(logging.INFO)

if __name__ == '__main__':
    app.run(debug=True)

实际日志输出：

{"threadName": "MainThread", "message": " * Debugger PIN: 188-641-578", "levelname": "INFO", "levelno": 20, "name": "werkzeug", "timestamp": "2018-06-26T11:38:21.780630Z"}