Module @prelude/log

Log package

A lightweight, flexible TypeScript logging library with configurable severity levels and pluggable log targets.

Features

Simple, intuitive API
Configurable log severity levels (trace, debug, info, warn, error, fatal)
Pluggable log targets (console, memory, or custom)
Namespace support for easy identification of log sources
Environment variable control for log levels
Error handling utilities with rescue pattern
TypeScript support with strict typing

Usage

pnpm i -E @prelude/log

import * as Fs from 'node:fs/promises'
import Log from '@prelude/log'

// Create a logger with namespace
const log = new Log('my-module')

// Log at different severity levels
log.info('application started')
log.debug('processing request', { id: 123 })

// Use the rescue pattern for error handling
const file = await Fs
  .readFile('config.json', 'utf-8')
  .catch(log.rescue('error', 'Error while trying to read file', undefined))

// Continue with file if available
if (file) {
  // Process file
}