Add SSE Support for Real-time Updates

[ma3u]

Description

Implement Server-Sent Events (SSE) support in the Dust MCP Server to enable real-time updates for MCP clients like Windsurf. This will allow clients to receive streaming responses and updates without constant polling.

Requirements

• Implement SSE endpoint at /api/sse
• Support multiple client connections with unique session IDs
• Implement keep-alive mechanism for SSE connections
• Add rate limiting for SSE connections
• Document SSE API in README
• Add tests for SSE functionality
• Update TypeScript types for SSE events
• Add error handling for disconnected clients
• Implement reconnection strategy for clients

Technical Details

• Use Node.js events module for event handling
• Implement proper cleanup of disconnected clients
• Support CORS for web clients
• Add configuration options for:
  • Max connections per IP
  • Keep-alive interval
  • Max retry time

Related Components

• Session management system
• Authentication middleware
• Rate limiting
• Logging system

Acceptance Criteria

• Clients can connect to SSE endpoint
• Clients receive real-time updates
• Connection limits are enforced
• Proper error handling and reconnection
• Documentation is updated
• Tests are passing

Dependencies

• None identified

Additional Context

This is part of the Smithery and Pipedream integration for MCP clients supporting SSE.