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pretty-js-log

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  • License MIT

A light logging package for Node.js and Bun applications. Features file logging and beautiful console output.

Package Exports

  • pretty-js-log
  • pretty-js-log/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (pretty-js-log) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Pretty-js-log 📝

Node.js CI npm version npm downloads License: MIT Bundle Size Bundle Size (gzip)

A lightweight and colorful logging package for Node.js and Bun applications. Makes your console output beautiful and saves logs to files!

Features

  • Colorful console output
  • File logging support
  • Multiple log levels (info, warn, error, debug)
  • Support for both Node.js and Bun
  • JSON object / Array formatting
  • Custom IDs for tracking (like process ID)
  • Timezone-aware timestamps

Installation 🚀

# Using npm
npm install pretty-js-log
# Using bun
bun install pretty-js-log

Quick Start 🎯

const { logFactory } = require('pretty-js-log');

// Create a basic logger
const logger = logFactory({});

// Log some messages
logger('Hello World');
logger.info('This is an info message');
logger.warn('Warning! Something needs attention');
logger.error('Oops! Something went wrong');
logger.debug('Debug information');

Output 🎑

Pretty JS Log Demo

Advanced Usage 🔧

Save Logs to File

const logger = logFactory({
    path: './logs/app.log',  // Logs will be saved here
    id: process.pid          // Add process ID to logs
});

logger('This will be saved to the file too!');

Logging Objects

const data = {
    user: 'john',
    age: 25
};

logger('User data:', data);  // Objects are automatically formatted

Disable Console Output

If you want to write logs only to file without console output, use the toStdout option:

const logger = logFactory({
    path: './logs/app.log',
    toStdout: false    // Logs will only be written to file
});

logger('This will only appear in the log file');
logger.info('Silent logging to file');

Update Logger ID

You can dynamically update the logger ID after creation using the id method:

const logger = logFactory({
    id: 'initial-id'
});

logger('First log with initial ID');

logger.id('new-id');
logger('This log will show the new ID');

Output Examples 🎨

When you run your logs, they'll look something like this in the console:

[2024-03-15 10:30:45] - [id:1234] - Hello World
[2024-03-15 10:30:46] - [id:1234] - This is an info message
[2024-03-15 10:30:47] - [id:1234] - Warning! Something needs attention

Contributing 🤝

Feel free to open issues and submit PRs! This is an open-source project and we welcome contributions.

License 📄

MIT License - feel free to use this in your projects!

Todo 📋

  • File logging rotation based on file size or on dates.
  • Add support for external logging API's endpoints.

Author 👨‍💻

Belguinan Noureddine

GitHub: https://github.com/belguinan