Logginglog

Powerful and colorful logging for Node.js — console or file-based!

Installation

npm install logginglog

Usage

import logginglog from 'logginglog';

const logger = logginglog.createLogger();

logger.log('Hello world!');
logger.info('Information');
logger.warn('Warning');
logger.error('Error message');

Custom logger with color and styles

const custom = logginglog.customLogger('MyLogger', {
  color: 'blue',
  styles: ['bold', 'underline']
});

custom('A custom log line');

Supported styles

For regular Chalk colors:

• bold
• italic
• underline
• dim

Supported colors

All colors provided by chalk-extra, including:

• red
• green
• blue
• cyan
• yellow
• magenta
• rainbow
• zebra
• trap
• random

The rainbow, zebra, trap, and random styles do not apply additional styles such as bold or italic.

Log to file

Logging to a file is handled through createLogger().

Console and file

const logger = logginglog.createLogger({
  file: true,
  filePath: './mylogs.txt'
});

logger.log('This line goes to the console and file.');
logger.info('Information');
logger.warn('Warning');
logger.error('Error');

File only

const fileLogger = logginglog.createLogger({
  console: false,
  file: true,
  filePath: './mylogs.txt'
});

fileLogger.log('This line will only be written to the file.');

File logs contain timestamps and are written without ANSI color codes.

Options

createLogger() accepts the following options:

Option	Type	Default	Description
underline	boolean	true	Underlines log messages
console	boolean	true	Enables console logging
file	boolean	false	Enables file logging
filePath	string	'log.txt'	Path to the log file

Logging values

Logger methods accept strings, objects, and Error objects.

logger.info({
  message: 'Object logging works',
  value: 42
});

logger.error(new Error('Something went wrong'));

Objects are serialized as JSON, while Error objects log their message without the stack trace.

License

GNU General Public License v3.0