Skip to content

Instantly share code, notes, and snippets.

@dipenparmar12
Last active April 23, 2022 07:19
Show Gist options
  • Save dipenparmar12/017aff517e2de1840638cca3c80f0d52 to your computer and use it in GitHub Desktop.
Save dipenparmar12/017aff517e2de1840638cca3c80f0d52 to your computer and use it in GitHub Desktop.
const winston = require('winston');
const { format } = require('winston');
const appRoot = require('app-root-path');
const config = require('./config');
const printf = (info) => {
if (typeof info.message === 'object') {
// eslint-disable-next-line no-param-reassign
info.message = JSON.stringify(info.message, null, 3);
}
return `[${info.timestamp}] ${info.level}:: ${info.message}`;
};
const options = {
console: {
level: 'debug',
handleExceptions: true,
json: false,
colorize: true,
stderrLevels: ['error'],
format: format.combine(
format.prettyPrint(),
format.splat(),
format.colorize(),
format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
format.printf(printf)
// format.printf((info) => `${info.timestamp} ${info.level}: ${info.message}`),
),
},
file: {
level: 'info',
filename: `${appRoot}/logs/${new Date().toISOString().slice(0, 10)}.log`, // Date=YYYY-MM-DD
handleExceptions: true,
json: false,
maxsize: 5242880, // 5MB
maxFiles: 30,
colorize: false,
format: format.combine(
format.prettyPrint(),
format.splat(),
format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
format.printf(printf)
// format.printf((info) => `[${info.timestamp}] ${info.level}: ${info.message}`),
),
},
email: {
level: 'info',
filename: `${appRoot}/logs/mail/mail-${new Date().toISOString().slice(0, 10)}.log`, // Date=YYYY-MM-DD
handleExceptions: true,
json: true,
maxsize: 5242880, // 5MB
maxFiles: 365,
colorize: false,
format: format.combine(
format.prettyPrint(),
format.splat(),
format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
format.printf(printf)
),
},
};
const logger = winston.createLogger({
level: config.env === 'development' ? 'debug' : 'info',
transports: [new winston.transports.Console(options.console), new winston.transports.File(options.file)],
});
const mailLog = winston.createLogger({
level: config.env === 'development' ? 'debug' : 'info',
transports: [new winston.transports.File(options.email)],
});
module.exports = logger;
module.exports.mailLog = mailLog;
/// Usage example
// logger.info('Log: info');
// logger.warn('Log: warn');
// logger.debug('Log: debug');
// logger.error('Log: error');
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment