Console Transport

The simplest integration is with the built-in console object, which is available in both Node.js and browser environments.

Transport Source

Installation

No additional packages needed beyond the core loglayer package:

npm

npm i loglayer

pnpm

pnpm add loglayer

yarn

yarn add loglayer

Setup

import { LogLayer, ConsoleTransport } from 'loglayer'

const log = new LogLayer({
  transport: new ConsoleTransport({
    logger: console,
    // Optional: control where object data appears in log messages
    appendObjectData: false // default: false - object data appears first
  })
})

Configuration Options

appendObjectData

Controls where object data (metadata, context, errors) appears in the log messages:

• false (default): Object data appears as the first parameter
• true: Object data appears as the last parameter

Example with appendObjectData: false (default):

log.withMetadata({ user: 'john' }).info('User logged in');
// console.info({ user: 'john' }, 'User logged in')

Example with appendObjectData: true:

log.withMetadata({ user: 'john' }).info('User logged in');
// console.info('User logged in', { user: 'john' })

Log Level Mapping

LogLayer	Console
trace	debug
debug	debug
info	info
warn	warn
error	error
fatal	error