Server Sent Event with clusterized Node.js

This is a demo of using server-sent event under a clusterized node environment. Unlike WS, SSE does not require a handshake to establish a connection, so no additional magic is needed at load-balancing to ensure handshake requests are routed to the same node in the cluster.

The cluster environment is simulated with an http proxy.

Install dependencies: npm i

1. npm run single
2. From browser, go to http://localhost: 3000
3. Notice both websocket and SSE implementation works

1. npm run cluster
2. From browser, go to http://localhost: 4000
3. Notice that only SSE is working as WS fails to establish handshake.