72 lines
1.6 KiB
JavaScript
72 lines
1.6 KiB
JavaScript
/* + + + + + + + + + + + + + + + + + + + + +
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* Logger
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* -----------
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* a winston instance wrapper
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*
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* Author: Michael Samonte
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*
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+ + + + + + + + + + + + + + + + + + + + + */
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let fs = require('fs');
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let winston = require('winston');
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let createLogger = winston.createLogger;
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let format = winston.format;
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let transports = winston.transports;
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/* + + + + + + + + + + + + + + + + + + + + +
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// Start
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+ + + + + + + + + + + + + + + + + + + + + */
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const { combine, timestamp, printf } = format;
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const logFormat = printf(info => {
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return `${info.timestamp} : ${info.level}: [${info.label}] : ${info.message}`;
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});
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const logger = createLogger({
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level: 'info',
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format: combine(timestamp(), logFormat),
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transports: [
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new transports.File({
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filename: './logs/error.log',
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level: 'error',
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}),
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new transports.File({
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filename: './logs/out.log',
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}),
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],
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});
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/**
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* create logs folder if it does not exist
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*/
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if (!fs.existsSync('logs')) {
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fs.mkdirSync('logs');
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}
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/**
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* @param {string} label group label
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* @param {string} message log message
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*/
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function log(label, message) {
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console.log(new Date(), label, message);
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logger.log({
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level: 'info',
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label: label,
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message: JSON.stringify(message),
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});
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}
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/**
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* TODO: we can do additional reporting here
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* @param {string} label group label
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* @param {string} message log message
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*/
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function error(label, message) {
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console.error(new Date(), label, message);
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logger.log({
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level: 'error',
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label: label,
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message: JSON.stringify(message),
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});
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}
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exports.log = log;
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exports.error = error;
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