Add Node.js implementation with enhanced search capabilities
- Implement complete Express.js server with SQLite FTS5 search - Add modern responsive UI with dark/light themes - Enhance search with partial word matching and advanced filters - Add RESTful API with comprehensive endpoints - Include security features (Helmet.js, rate limiting, CORS) - Add performance optimizations (gzip, caching, WAL mode) - Provide comprehensive documentation and setup scripts - Maintain feature parity with Python implementation while adding enhancements
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ivkan
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README-nodejs.md
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README-nodejs.md
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# 🚀 N8N Workflow Documentation - Node.js Implementation
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A fast, modern documentation system for N8N workflows built with Node.js and Express.js.
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## ✨ Features
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- **Lightning Fast Search**: SQLite FTS5 full-text search with sub-100ms response times
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- **Smart Categorization**: Automatic workflow categorization by integrations and complexity
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- **Visual Workflow Diagrams**: Interactive Mermaid diagrams for workflow visualization
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- **Modern UI**: Clean, responsive interface with dark/light themes
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- **RESTful API**: Complete API for workflow management and search
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- **Real-time Statistics**: Live workflow stats and analytics
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- **Secure by Default**: Built-in security headers and rate limiting
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## 🛠️ Quick Start
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### Prerequisites
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- Node.js 19+ (configured to use `~/.nvm/versions/node/v19.9.0/bin/node`)
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- npm or yarn package manager
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### Installation
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```bash
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# Clone the repository
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git clone <repository-url>
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cd n8n-workflows
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# Install dependencies
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npm install
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# Initialize database and directories
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npm run init
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# Copy your workflow JSON files to the workflows directory
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cp your-workflows/*.json workflows/
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# Index workflows
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npm run index
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# Start the server
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npm start
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```
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### Development Mode
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```bash
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# Start with auto-reload
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npm run dev
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# Start on custom port
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npm start -- --port 3000
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# Start with external access
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npm start -- --host 0.0.0.0 --port 8000
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```
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## 📂 Project Structure
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```
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n8n-workflows/
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├── src/
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│ ├── server.js # Main Express server
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│ ├── database.js # SQLite database operations
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│ ├── index-workflows.js # Workflow indexing script
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│ └── init-db.js # Database initialization
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├── static/
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│ └── index.html # Frontend interface
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├── workflows/ # N8N workflow JSON files
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├── database/ # SQLite database files
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├── package.json # Dependencies and scripts
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└── README-nodejs.md # This file
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```
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## 🔧 Configuration
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### Environment Variables
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- `NODE_ENV`: Set to 'development' for debug mode
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- `PORT`: Server port (default: 8000)
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- `HOST`: Server host (default: 127.0.0.1)
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### Database
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The system uses SQLite with FTS5 for optimal performance:
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- Database file: `database/workflows.db`
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- Automatic WAL mode for concurrent access
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- Optimized indexes for fast filtering
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## 📊 API Endpoints
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### Core Endpoints
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- `GET /` - Main documentation interface
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- `GET /health` - Health check
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- `GET /api/stats` - Workflow statistics
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### Workflow Operations
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- `GET /api/workflows` - Search workflows with filters
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- `GET /api/workflows/:filename` - Get workflow details
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- `GET /api/workflows/:filename/download` - Download workflow JSON
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- `GET /api/workflows/:filename/diagram` - Get Mermaid diagram
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- `POST /api/reindex` - Reindex workflows
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### Search and Filtering
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```bash
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# Search workflows
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curl "http://localhost:8000/api/workflows?q=slack&trigger=Webhook&complexity=low"
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# Get statistics
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curl "http://localhost:8000/api/stats"
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# Get integrations
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curl "http://localhost:8000/api/integrations"
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```
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## 🎯 Usage Examples
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### Basic Search
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```javascript
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// Search for Slack workflows
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const response = await fetch('/api/workflows?q=slack');
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const data = await response.json();
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console.log(`Found ${data.total} workflows`);
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```
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### Advanced Filtering
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```javascript
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// Get only active webhook workflows
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const response = await fetch('/api/workflows?trigger=Webhook&active_only=true');
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const data = await response.json();
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```
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### Workflow Details
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```javascript
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// Get specific workflow
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const response = await fetch('/api/workflows/0001_Telegram_Schedule_Automation_Scheduled.json');
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const workflow = await response.json();
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console.log(workflow.name, workflow.description);
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```
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## 🔍 Search Features
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### Full-Text Search
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- Searches across workflow names, descriptions, and integrations
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- Supports boolean operators (AND, OR, NOT)
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- Phrase search with quotes: `"slack notification"`
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### Filters
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- **Trigger Type**: Manual, Webhook, Scheduled, Triggered
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- **Complexity**: Low (≤5 nodes), Medium (6-15 nodes), High (16+ nodes)
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- **Active Status**: Filter by active/inactive workflows
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### Sorting and Pagination
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- Sort by name, date, or complexity
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- Configurable page size (1-100 items)
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- Efficient offset-based pagination
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## 🎨 Frontend Features
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### Modern Interface
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- Clean, responsive design
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- Dark/light theme toggle
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- Real-time search with debouncing
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- Lazy loading for large result sets
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### Workflow Visualization
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- Interactive Mermaid diagrams
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- Node type highlighting
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- Connection flow visualization
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- Zoom and pan controls
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## 🔒 Security
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### Built-in Protection
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- Helmet.js for security headers
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- Rate limiting (1000 requests/15 minutes)
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- Input validation and sanitization
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- CORS configuration
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### Content Security Policy
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- Strict CSP headers
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- Safe inline styles/scripts only
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- External resource restrictions
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## 📈 Performance
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### Optimization Features
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- Gzip compression for responses
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- SQLite WAL mode for concurrent reads
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- Efficient database indexes
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- Response caching headers
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### Benchmarks
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- Search queries: <50ms average
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- Workflow indexing: ~1000 workflows/second
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- Memory usage: <100MB for 10k workflows
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## 🚀 Deployment
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### Production Setup
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```bash
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# Install dependencies
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npm ci --only=production
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# Initialize database
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npm run init
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# Index workflows
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npm run index
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# Start server
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NODE_ENV=production npm start
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```
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### Docker Deployment
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```dockerfile
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FROM node:19-alpine
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WORKDIR /app
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COPY package*.json ./
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RUN npm ci --only=production
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COPY . .
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RUN npm run init
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EXPOSE 8000
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CMD ["npm", "start"]
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```
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## 🛠️ Development
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### Architecture
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The system follows SOLID principles with clear separation of concerns:
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- **Database Layer**: SQLite with FTS5 for search
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- **API Layer**: Express.js with middleware
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- **Frontend**: Vanilla JavaScript with modern CSS
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- **CLI Tools**: Commander.js for command-line interface
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### Code Style
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- **YAGNI**: Only implement required features
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- **KISS**: Simple, readable solutions
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- **DRY**: Shared utilities and helpers
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- **Kebab-case**: Filenames use kebab-case convention
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### Testing
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```bash
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# Run basic health check
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curl http://localhost:8000/health
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# Test search functionality
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curl "http://localhost:8000/api/workflows?q=test"
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# Verify database stats
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npm run index -- --stats
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```
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## 🔧 Troubleshooting
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### Common Issues
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1. **Database locked**: Ensure no other processes are using the database
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2. **Memory issues**: Increase Node.js memory limit for large datasets
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3. **Search not working**: Verify FTS5 is enabled in SQLite
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4. **Slow performance**: Check database indexes and optimize queries
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### Debug Mode
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```bash
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# Enable debug logging
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NODE_ENV=development npm run dev
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# Show detailed error messages
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DEBUG=* npm start
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```
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## 🤝 Contributing
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1. Follow the coding guidelines (YAGNI, SOLID, KISS, DRY)
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2. Use English for all comments and documentation
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3. Use kebab-case for filenames
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4. Add tests for new features
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5. Update README for API changes
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## 📝 License
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MIT License - see LICENSE file for details
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## 🙏 Acknowledgments
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- Original Python implementation as reference
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- N8N community for workflow examples
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- SQLite team for excellent FTS5 implementation
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- Express.js and Node.js communities
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