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The HAIP Server is a complete, production-ready reference implementation of the HAI Protocol. It provides a fully functional server that supports all HAIP transport types, authentication, tool integration, and monitoring capabilities.

Production Ready

Docker support, monitoring, security, and comprehensive testing

Multiple Transports

WebSocket, Server-Sent Events (SSE), and HTTP streaming support

Tool Integration

Dynamic tool registration and execution with built-in test tools

100% Test Coverage

93/93 tests passing with no async cleanup issues

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Features

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Core Protocol Support

  • Complete HAIP Implementation - All message types and event handling
  • Multi-Transport Support - WebSocket, SSE, and HTTP streaming
  • Authentication - JWT token validation and session management
  • Flow Control - Credit-based flow control with adaptive adjustment
  • Error Handling - Comprehensive error codes and recovery

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Production Features

  • Docker Support - Containerized deployment with docker-compose
  • Health Monitoring - Real-time statistics and health checks
  • Security - Helmet.js, CORS, compression, and rate limiting
  • Logging - Structured logging with Morgan
  • Session Management - Per-client session tracking with cleanup

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Tool Integration

  • Dynamic Tool Registration - Register tools at runtime
  • Built-in Test Tools - Echo, add, and weather tools included
  • Tool Lifecycle - Call, update, complete, and cancel operations
  • Schema Validation - JSON Schema validation for tool inputs/outputs

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Development Features

  • TypeScript - Full type safety and IntelliSense support
  • Event System - Comprehensive event emission for all operations
  • Test Suite - 100% test coverage with Jest
  • Examples - Working examples for all major features

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Architecture

The HAIP Server is built with a modular, event-driven architecture:

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Key Components

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Server Core

  • HAIPServer - Main server class extending EventEmitter
  • Session Management - Per-client session tracking with flow control
  • Message Routing - Route messages to appropriate handlers
  • Event System - Emit events for all server operations

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Transport Layer

  • WebSocket Server - Full-duplex communication
  • SSE Endpoint - Server-sent events for one-way streaming
  • HTTP Streaming - HTTP-based bidirectional streaming

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Tool System

  • Tool Registry - Dynamic tool registration and management
  • Tool Executor - Execute tools with progress updates
  • Schema Validation - Validate tool inputs and outputs

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Monitoring

  • Statistics - Real-time server statistics
  • Health Checks - /health and /stats endpoints
  • Logging - Structured logging with different levels

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Quick Start

Get started with the HAIP Server in minutes: 
# Clone the repository
git clone https://github.com/haiprotocol/haip
cd haip/haip-server

# Install dependencies
npm install

# Start the server
npm start
The server will be available at:
  • WebSocket: ws://localhost:8080/haip/websocket
  • SSE: http://localhost:8080/haip/sse
  • HTTP Streaming: http://localhost:8080/haip/stream
  • Health Check: http://localhost:8080/health
  • Statistics: http://localhost:8080/stats

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Docker Deployment

Deploy with Docker for production: 
# Build the image
docker build -t haip-server .

# Run the container
docker run -p 8080:8080 haip-server

# Or use docker-compose
docker-compose up -d

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Configuration

The server is highly configurable through environment variables or configuration objects: 
const server = new HAIPServer({
  port: 8080,
  host: "0.0.0.0",
  jwtSecret: "your-secret-key",
  maxConnections: 1000,
  flowControl: {
    enabled: true,
    initialCredits: 1000,
    adaptiveAdjustment: true,
  },
});

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Built-in Tools

The server includes several built-in tools for testing and development:

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Echo Tool

{
  name: 'echo',
  description: 'Echo back the input',
  inputSchema: {
    type: 'object',
    properties: { message: { type: 'string' } },
    required: ['message']
  }
}

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Add Tool

{
  name: 'add',
  description: 'Add two numbers',
  inputSchema: {
    type: 'object',
    properties: {
      a: { type: 'number' },
      b: { type: 'number' }
    },
    required: ['a', 'b']
  }
}

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Weather Tool

{
  name: 'weather',
  description: 'Get weather information',
  inputSchema: {
    type: 'object',
    properties: { location: { type: 'string' } }
  }
}

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Testing

The server includes comprehensive tests: 
# Run all tests
npm test

# Run with coverage
npm run test:coverage

# Run specific test suites
npm run test:unit
npm run test:integration
npm run test:websocket
Test Results: 93/93 tests passing (100% coverage)

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Next Steps

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Repository

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Contributing

The HAIP Server is open source and welcomes contributions:
  1. Fork the repository
  2. Create a feature branch
  3. Make your changes
  4. Add tests for new features
  5. Submit a pull request

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License

MIT License - see LICENSE for details.