Winston:尝试写没有传输的日志

Question

我正在尝试使用Winston为我的快速服务器设置访问日志和错误日志,但我似乎做错了什么.

这是我对配置文件的尝试:

const winston = require('winston'),
    fs = require('fs');

const tsFormat = () => (new Date()).toLocaleTimeString();
winston.loggers.add('errorLog', {
        file: {
                filename: '<path>/errors.log', //<path> is replaced by the 
                timestamp: tsFormat,           //absolute path of the log
                level: 'info'
        }

});
winston.loggers.add('accessLog', {
        file: {
                filename: '<path>/access.log', //same as before
                timestamp: tsFormat,
                level: 'info'
        }
});

这就是我将其包含在我的其他文件中的方式:

var winston = require('winston'),
    accessLog = winston.loggers.get('accessLog'),
    errorLog = winston.loggers.get('errorLog');

在我看来,它似乎遵循文档(https://github.com/winstonjs/winston/tree/2.4.0#working-with-multiple-loggers-in-winston)但我在尝试时遇到此错误登录到它:

[winston] Attempt to write logs with no transports {"message":"pls","level":"info"}
[winston] Attempt to write logs with no transports {"message":"Bad request: undefined","level":"warn"}

任何帮助将不胜感激,我已经相当困难了几天了.

Answer 1

我尝试这样的事情,将所有与记录器相关的东西放入模块logger.js:

logger.js

    var winston = require('winston');
    var path = require('path');

    // Set this to whatever, by default the path of the script.
    var logPath = __dirname;

    const tsFormat = () => (new Date().toISOString());

  const errorLog = winston.createLogger({
  transports: [
    new winston.transports.File({
      filename: path.join(logPath, 'errors.log'),
      timestamp: tsFormat,
      level: 'info'})
  ]
});

const accessLog = winston.createLogger({
  transports: [
    new winston.transports.File({
      filename: path.join(logPath, 'access.log'),
      timestamp: tsFormat,
      level: 'info'})
  ]
});


    module.exports = {
        errorLog: errorLog,
        accessLog: accessLog
    };

然后在index.js中测试:

index.js

var logger = require('./logger');

logger.errorLog.info('Test error log');
logger.accessLog.info('Test access log');

您应该看到如下日志行:

errors.log:

{"level":"info","message":"Test access log","timestamp":"2018-03-14T07:51:11.185Z"}

access.log的:

{"level":"info","message":"Test error log","timestamp":"2018-03-14T07:51:11.182Z"}

编辑

在温斯顿的最后一个版本,new (winston.Logger)已被winston.createLogger(https://github.com/bithavoc/express-winston/issues/175)取代