dev-filterjs

js-log-print

js-log-print is a robust and extensible logging utility for Vite and JavaScript projects. It supports structured logging formats and integrates seamlessly with popular tools like Bunyan and Winston.

Features

• Structured logging for Vite development and build processes
• Compatible with Bunyan, Winston, and custom log pipelines
• Lightweight and zero dependencies
• Customizable log levels and output formats
• Supports console and file-based outputs
• Built-in TypeScript support

Installation

Using npm:

npm install js-log-print --save-dev

Using Yarn:

yarn add js-log-print -D

Usage

Add the plugin to your vite.config.js or vite.config.ts:

import { defineConfig } from "vite";
import jsLogPrint from "js-log-print";

export default defineConfig({
  plugins: [
    jsLogPrint({
      logLevel: "info",
      format: "json",
      output: "console",
    }),
  ],
});

Configuration Options

Option	Type	Default	Description
logLevel	'info' | 'warn' | 'error' | 'debug'	'info'	Minimum log level to output
format	'json' | 'pretty' | 'bunyan'	'pretty'	Log message format
output	'console' | 'file'	'console'	Output destination
outputPath	string	undefined	Path to log file if output is 'file'
includeTimestamp	boolean	true	Whether to include timestamps in logs

Example Output

Pretty Format

[js-log-print] [INFO] Server started on http://localhost:5173
[js-log-print] [DEBUG] Resolved config: ...

JSON Format

{
  "level": "info",
  "timestamp": "2025-06-07T14:32:00.000Z",
  "message": "Server started on http://localhost:5173"
}

License

MIT © [dmytryi]

Contributing

Contributions are welcome! Feel free to open issues or pull requests.