Sprintf Plugin for LogLayer

The sprintf plugin for loglayer provides printf-style string formatting support using sprintf-js.

It allows you to format your log messages using familiar printf-style placeholders if a transport does not support this behavior.

Disclaimer

• LogLayer does not allow passing items that are not strings or numbers into message methods like info, error, etc, and would recommend that only string and number specifiers be used.
• Not all logging libraries support multiple parameters in a message method, so this plugin is useful for those that do.

Installation

npm install @loglayer/plugin-sprintf

Usage

import { LogLayer, ConsoleTransport } from 'loglayer'
import { sprintfPlugin } from '@loglayer/plugin-sprintf'

const log = new LogLayer({
  transport: new ConsoleTransport({
    logger: console
  }),
  plugins: [
    sprintfPlugin()
  ]
})

// Example usage
log.info("Hello %s!", "world")
// Output: Hello world!

log.info("Number: %d", 42)
// Output: Number: 42

Documentation

For more details, visit https://loglayer.dev/plugins/sprintf