lambda-layer-packager/README.md

A professional CLI tool designed to package Node.js modules into a zip file for AWS Lambda Layers, facilitating efficient deployment and management of serverless applications.

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# Lambda Layer Packager

[![Version](https://img.shields.io/npm/v/lambda-layer-packager.svg)](https://npmjs.org/package/lambda-layer-packager)
[![License](https://img.shields.io/npm/l/lambda-layer-packager.svg)](https://github.com/Vijay431/lambda-layer-packager/blob/master/package.json)
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A command-line utility for packaging Node.js dependencies into AWS Lambda Layers. Automatically compresses `node_modules` into deployment-ready `.zip` files compatible with AWS Lambda, Serverless Framework, and Terraform.

## Features

- Supports multiple package managers (npm, yarn, pnpm)
- Compatible with ES Modules (ES2022) and CommonJS
- Configurable output directory structure
- Production dependencies filtering
- Simple command-line interface

## Installation

```bash
# Global installation
npm install -g lambda-layer-packager@latest

# Project-specific installation
npm install --save-dev lambda-layer-packager@latest
```

Verify installation: `packager --version`

## Command Reference

### List Available Commands

```bash
packager commands
```

### Package Dependencies

```bash
packager package [options]
```

Options:

- `--name`: Output filename (default: "layer.zip")
- `--package-manager`: Package manager selection (default: "npm")
- `--dir`: Target directory in archive (default: "nodejs/default")
- `--only-prod`: Include only production dependencies (default: true)
- `--help`: Show command help

## Dependencies

This project leverages the following open-source packages:

- `figlet` - ASCII art generation
- `commander` - CLI framework
- `archiver` - Archive creation
- `spinnies` - Terminal spinners

All dependencies are MIT licensed.

## License

MIT License - See package.json for details.

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📦 Built with open source. Contributions welcome!