easylog

EasyLog is a very simple and minimalist logging library. It exists because this code was copied/pasted in almost every project we maintain.

Installation

$ yarn add @link-society/easylog

Usage

In TypeScript:

import logging, { LogLevel } from '@link-society/easylog'

logging.configure({
  level: LogLevel.Info
})

logging.debug({ foo: 'bar' }) // will not be printed
logging.info({ foo: 'bar' })  // will be printed

In NodeJS:

const { default: logging, LogLevel } = require('@link-society/easylog')

logging.configure({
  level: LogLevel.Info
})

logging.debug({ foo: 'bar' }) // will not be printed
logging.info({ foo: 'bar' })  // will be printed

API

The methods debug, info and warn accepts a LogRecord object, it is an object whose properties are either a string, a number or a boolean.

The method error accepts an Error object and and will generate the LogRecord object.

The method configure accepts an object with the following properties:

Name	Type	Description
level	Optional<LogLevel>	Minimum logging level required to be written to the output
writer	Optional<LogWriter>	Object used to write the output (example: console)
processor	Optional<LogProcessor>	Function used to transform the log record before writing it
errorProcessor	Optional<ErrorProcessor>	Function used to generate the log record from an error

License

This library is released under the terms of the MIT License.