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Logger Library with winston
var winston = require('winston');
var fs = require('fs');
// check if directory exist
if (!fs.existsSync('logs')) {
fs.mkdirSync('logs'); // create new directory
}
// Set up logger
var customColors = {
trace: 'white',
debug: 'green',
info: 'green',
warn: 'yellow',
crit: 'red',
fatal: 'red'
};
var logger = new(winston.Logger)({
colors: customColors,
levels: {
trace: 0,
debug: 1,
info: 2,
warn: 3,
crit: 4,
fatal: 5
},
transports: [
new(winston.transports.Console)({
name: 'consoleLogger',
level: 'fatal',
colorize: true,
timestamp: true
}),
new(winston.transports.File)({
name: 'fileLogger',
level: 'fatal',
filename: 'logs/myfile.log',
maxsize: 104857600 // 100 mb
})
]
});
winston.addColors(customColors);
// Extend logger object to properly log 'Error' types
var origLog = logger.log;
logger.log = function (level, msg) {
if (msg instanceof Error) {
var args = Array.prototype.slice.call(arguments);
args[1] = msg.stack;
origLog.apply(logger, args);
} else {
origLog.apply(logger, arguments);
}
};
/* LOGGER EXAMPLES
app.logger.trace('testing');
app.logger.debug('testing');
app.logger.info('testing');
app.logger.warn('testing');
app.logger.crit('testing');
app.logger.fatal('testing');
*/
module.exports = logger;
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