javascript - 如何使用 Winston 3 记录完整的堆栈跟踪？

Question

我的记录器设置如下:

const myFormat = printf(info => {
   return `${info.timestamp}: ${info.level}: ${info.message}: ${info.err}`;
 });


 const logger =
   winston.createLogger({
   level: "info",
   format: combine(timestamp(), myFormat),

   transports: [
     new winston.transports.File({
     filename:
      "./logger/error.log",
        level: "error"
    }),
     new winston.transports.File({
       filename:
       "./logger/info.log",
       level: "info"
   })
  ]
})

然后我正在注销一些这样的错误:

logger.error(`GET on /history`, { err });

如何通过错误传输记录错误的完整堆栈跟踪？我尝试传入 err.stack，结果显示为未定义。

谢谢!

Answer 1

对于winston版本3.2.0+，下面会添加stacktrace到日志输出:

import { createLogger, format, transports } from 'winston';

const { combine, timestamp, prettyPrint, colorize, errors,  } = format;


const logger = createLogger({
  format: combine(
    errors({ stack: true }), // <-- use errors format
    colorize(),
    timestamp(),
    prettyPrint()
  ),
  transports: [new transports.Console()],
});  

引用:https://github.com/winstonjs/winston/issues/1338#issuecomment-482784056