netlify-plugin-expo-qr/PROJECT_SUMMARY.md

Netlify Build Plugin to automate Expo app updates and generate QR code pages for Expo Go

# Project Summary: netlify-plugin-expo-qr

## What Has Been Created

This project contains a complete Netlify Build Plugin that automates Expo app updates and generates QR code pages. Here's what's included:

### Core Plugin Files
- **`index.js`** - Main plugin implementation with `onBuild` lifecycle hook
- **`manifest.yml`** - Plugin manifest defining inputs and configuration
- **`package.json`** - NPM package configuration with dependencies

### Documentation & Examples
- **`README.md`** - Comprehensive documentation and usage guide
- **`example-netlify.toml`** - Example configuration file
- **`LICENSE`** - MIT license file
- **`.gitignore`** - Git ignore patterns

### Publishing Tools
- **`scripts/publish.sh`** - Automated publishing script for npm releases

## Plugin Features

✅ **Dual Mode Support**: EAS (recommended) and legacy publish modes  
✅ **QR Code Generation**: Embedded QR codes using the `qrcode` package  
✅ **Beautiful HTML Pages**: Responsive design with system fonts  
✅ **Environment Integration**: Uses Netlify environment variables  
✅ **Error Handling**: Comprehensive error handling and logging  
✅ **Node 18+ Compatible**: Modern Node.js support  

## How It Works

1. **During Netlify Build**: Plugin runs `eas update` or `expo publish`
2. **URL Extraction**: Parses JSON output to get Expo project URL
3. **QR Generation**: Creates scannable QR code as Data URI
4. **File Output**: Generates `dist/expo-qr.html` and `dist/__expo-latest.txt`

## Quick Start

### 1. Install the Plugin
```bash
npm install netlify-plugin-expo-qr
```

### 2. Configure netlify.toml
```toml
[[plugins]]
package = "netlify-plugin-expo-qr"
[plugins.inputs]
mode = "eas"
```

### 3. Set Environment Variables
- `EXPO_TOKEN` (required) - Your Expo access token
- `EAS_UPDATE_BRANCH` (optional) - Branch name, defaults to "preview"

## File Structure
```
NetlifyPlugin/
├── index.js                 # Main plugin implementation
├── manifest.yml            # Plugin manifest
├── package.json            # NPM package configuration
├── README.md              # Comprehensive documentation
├── example-netlify.toml   # Example configuration
├── LICENSE                # MIT license
├── .gitignore            # Git ignore patterns
├── scripts/
│   └── publish.sh        # Publishing automation script
└── PROJECT_SUMMARY.md    # This file
```

## Next Steps

### For Development
1. Test the plugin locally with your Expo project
2. Verify QR code generation works correctly
3. Test both EAS and publish modes

### For Publishing
1. Update repository URLs in `package.json`
2. Run `./scripts/publish.sh` to publish to npm
3. Create GitHub release and documentation

### For Users
1. Install from npm: `npm install netlify-plugin-expo-qr`
2. Add to `netlify.toml` configuration
3. Set required environment variables
4. Deploy and enjoy automatic QR code generation!

## Technical Details

- **Node.js Version**: 18.0.0+
- **Dependencies**: `qrcode` for QR code generation
- **Build Hook**: `onBuild` lifecycle hook
- **Output Format**: HTML with embedded Data URI QR codes
- **Error Handling**: Graceful failure with clear error messages

## Support & Contributing

- 📖 Read the full documentation in `README.md`
- 🐛 Report issues or suggest improvements
- 🤝 Contribute code or documentation
- ⭐ Star the repository if you find it useful

---

**Created**: December 2024  
**License**: MIT  
**Status**: Ready for npm publishing