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What would you like to do?
A simple node module that makes console.log/error/warn/debug statements log through winston (simply include at the beginning of your app)
'use strict';
var util = require('util'),
winston = require('winston'),
logger = new winston.Logger(),
production = (process.env.NODE_ENV || '').toLowerCase() === 'production';
module.exports = {
middleware: function(req, res, next){
console.info(req.method, req.url, res.statusCode);
next();
},
production: production
};
// Override the built-in console methods with winston hooks
switch((process.env.NODE_ENV || '').toLowerCase()){
case 'production':
production = true;
logger.add(winston.transports.File, {
filename: __dirname + '/application.log',
handleExceptions: true,
exitOnError: false,
level: 'warn'
});
break;
case 'test':
// Don't set up the logger overrides
return;
default:
logger.add(winston.transports.Console, {
colorize: true,
timestamp: true,
level: 'info'
});
break;
}
function formatArgs(args){
return [util.format.apply(util.format, Array.prototype.slice.call(args))];
}
console.log = function(){
logger.info.apply(logger, formatArgs(arguments));
};
console.info = function(){
logger.info.apply(logger, formatArgs(arguments));
};
console.warn = function(){
logger.warn.apply(logger, formatArgs(arguments));
};
console.error = function(){
logger.error.apply(logger, formatArgs(arguments));
};
console.debug = function(){
logger.debug.apply(logger, formatArgs(arguments));
};
@sbolel
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sbolel commented Jan 23, 2018

Thanks for the info everyone.

@spmason and @fega -- I've quoted your answers in this stackoverflow answer, and marked it as a community wiki since I did not write the answers myself. Cheers.

@carlosatta
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carlosatta commented Apr 18, 2018

tnks

@Himanshu922
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Himanshu922 commented Aug 29, 2018

Can i override logger level default methods, actually i want to save all logger.error msgs in mongo

@BinaryShrub
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BinaryShrub commented Jun 25, 2020

Took a stab at an updated version with color support: https://gist.github.com/BinaryShrub/790d97e34247d409f85b7c9434d0ddd5

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