Node.js 如何将文件名传递给winston logger?
我让温斯顿当了一名伐木工人,效果很好。Node.js 如何将文件名传递给winston logger?,node.js,winston,Node.js,Winston,我让温斯顿当了一名伐木工人,效果很好。 但是,我有几个进程要记录到不同的文件中。如何将文件名传递到记录器实例 我用这个做我的积木 'use strict'; const { createLogger, format, transports } = require('winston'); require('winston-daily-rotate-file'); const fs = require('fs'); const path = require('path'); const logDir
但是,我有几个进程要记录到不同的文件中。如何将文件名传递到记录器实例 我用这个做我的积木
'use strict';
const { createLogger, format, transports } = require('winston');
require('winston-daily-rotate-file');
const fs = require('fs');
const path = require('path');
const logDir = '/codeforge/log';
const dailyRotateFileTransport = new transports.DailyRotateFile({
filename: `${logDir}/%DATE%-engine.log`,
maxSize: "1g",
maxDays: "3d",
zippedArchive: true,
datePattern: 'YYYY-MM-DD'
});
const logger = createLogger({
// change level if in dev environment versus production
level: 'debug',
maxsize: '500m',
format: format.combine(
format.timestamp({
format: 'YYYY-MM-DD HH:mm:ss'
}),
// for the log file
format.printf(info => `${info.timestamp} ${info.level}: ${info.message}`)
),
transports: [
new transports.Console({
level: 'info',
format: format.combine(
format.colorize(),
format.printf(
info => `${info.message}`
)
)
}),
dailyRotateFileTransport
]
});
module.exports = logger
我想传入一个文件名来替换“-engine”部分,为它创建或附加一个日志文件
谢谢你的提示。让你的记录器变成你喜欢的函数
const log = require('logger')('myfilename');
log.info('happy logging')
代码:
哇,非常感谢!不知道我能把这个包起来。工作得很好!如何从“logger”导入logger?这段代码似乎为每个调用模块创建了一个单独的文件。如何修改此代码以使用一个循环的每日文件,该文件将来自所有调用模块的日志合并到一起?最初的问题是:“我有几个进程,我想记录到不同的文件中。”对于你的情况,我会像我想的那样使用模块。(即,不要将此代码放在单独的模块中)
'use strict';
const { createLogger, format, transports } = require('winston');
require('winston-daily-rotate-file');
const fs = require('fs');
const path = require('path');
const logDir = '/codeforge/log';
const dailyRotateFileTransport = filename => new transports.DailyRotateFile({
filename: `${logDir}/%DATE%-${filename}.log`,
maxSize: "1g",
maxDays: "3d",
zippedArchive: true,
datePattern: 'YYYY-MM-DD'
});
const logger = function(filename){
return createLogger({
// change level if in dev environment versus production
level: 'debug',
maxsize: '500m',
format: format.combine(
format.timestamp({
format: 'YYYY-MM-DD HH:mm:ss'
}),
// for the log file
format.printf(info => `${info.timestamp} ${info.level}: ${info.message}`)
),
transports: [
new transports.Console({
level: 'info',
format: format.combine(
format.colorize(),
format.printf(
info => `${info.message}`
)
)
}),
dailyRotateFileTransport(filename)
]
});
}
module.exports = logger // is now a function