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Please use scoped package: @diva.exchange/diva-logger

diva-logger

Modern, fast and lightweight Logger

Modern, fast, lightweight and generic logger. It's based on pino (https://www.npmjs.com/package/pino).

How to Install

npm install diva-logger

Getting Started - Usage

Use it either as

import { Logger } from 'diva-logger'

Logger.trace('hello world')

or

const Logger = require('diva-logger')

Logger.trace('hello world')

API

diva-logger is static. It can be used without instantiation, like

import { Logger } from 'diva-logger' 

try  {
    throw new Error('A recoverable error')
} catch (error) {
    Logger.warn(error)
    // go on
}   

diva-logger also attaches itself gently to the two global events uncaughtException and unhandledRejection. Hence an unhandled exception or an unhandled rejected promise will be properly logged (fatal):

import { Logger } from 'diva-logger' 

throw new Error('This is fatal')

After an unhandled exception or unhandled rejected promise, the process will be terminated with the exit code 1 (after the remaining event stack has been processed).

Chaining

diva-logger supports chaining, like

Logger.trace('trace message').debug('debug message')

Logging Examples, Usage of API

trace(any[, options])

Logger.trace('some trace message')
Logger.trace(process.env)

debug(any[, options])

Logger.debug(12345)

info(any[, options])

Logger.info('info goes here')

warn(any[, options])

Logger.warn('warning - recoverable error')

error(any[, options])

Logger.error('some serious error')
Logger.error(SomeObject)

fatal(any[, options])

Logger.fatal('One of the last messages of the process...')

How to Run Unit Tests

npm run test

Coverage reports are stored within ./coverage. Use any browser and open ./coverage/index.html.

How to Lint (eslint)

npm run lint