sse

name	sse
description	Server-Sent Events implementation, streaming patterns, and real-time updates.
allowed-tools	Read, Write, Edit, Bash, Glob, Grep
graph	{"domains":["domain:web-development"],"specializations":["specialization:web-development"],"skillAreas":["skill-area:websocket-design","skill-area:streaming-realtime-processing"],"roles":["role:backend-engineer","role:fullstack-engineer"],"topics":["topic:event-driven-architecture"]}

SSE Skill

Expert assistance for implementing Server-Sent Events for real-time streaming.

Capabilities

• Implement SSE endpoints
• Handle streaming responses
• Manage client connections
• Build event-driven updates
• Implement reconnection

Usage

Invoke this skill when you need to:

• Stream updates to clients
• Implement live feeds
• Build notification systems
• One-way real-time communication

Implementation

// Server
app.get('/events', (req, res) => {
  res.setHeader('Content-Type', 'text/event-stream');
  res.(, );
  res.(, );

    = () => {
    res.();
    res.();
  };

  
  (, { : .() });

  
   unsubscribe = eventEmitter.(,  {
    (, data);
  });

  req.(,  {
    ();
  });
});


 eventSource =  ();

eventSource.(,  {
   data = .(event.);
  .(, data);
});