温斯顿:尝试写没有传输的日志 [英] Winston: Attempt to write logs with no transports
问题描述
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,但是我似乎做错了事.
I'm trying to set up an access log and an error log for my express server using Winston, but I seem to be doing something wrong.
这是我尝试使用的配置文件:
Here is my attempt at a config file:
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其他文件中的方式:
And this is how I'm including it in my other files:
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 ) 但是尝试登录时出现此错误:
This seems to me like it follows the documentation (https://github.com/winstonjs/winston/tree/2.4.0#working-with-multiple-loggers-in-winston) but I'm getting this error when I try to log to it:
[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,我已经困扰了几天.
Any help would be greatly appreciated, I've been pretty stumped for a couple days now.
推荐答案
我会尝试类似的方法,将所有与记录器相关的内容放入logger.js模块中:
I'd try something like this, put all the logger related stuff into a module 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中进行测试:
and then test in index.js:
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:
You should see log lines like:
errors.log:
errors.log:
{"level":"info","message":"Test access log","timestamp":"2018-03-14T07:51:11.185Z"}
access.log:
access.log:
{"level":"info","message":"Test error log","timestamp":"2018-03-14T07:51:11.182Z"}
编辑
在Winston的最新版本上,
new (winston.Logger)
已由winston.createLogger
代替( https ://github.com/bithavoc/express-winston/issues/175 )
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