The WebSocket API allows you to to maintain a continuous two-way connection between client and server. Messages can be sent and received on both ends.
Article URL: http://www.sitepoint.com/real-time-apps-websockets-server-sent-events
npm install
npm start
open http://localhost:8080/Try opening multiple browsers and looking at the logs on client and server. Here's what's happening:
- The client connects to
ws://localhost:8081/via aWebSocket - The client sends
{ message: 'Hello' }to the server - The server sends
{ message: 'Gotcha '}when a connection is established. - The server keeps track of all connections in
wss.clients - Every three seconds the server broadcasts
{ message: 'Hello hello!' }to all connections. - Connections can be closed by hitting the
Closebutton or closing the window. - You can send
{ message: 'Hey' }to the server by hittingSend Message. - The server sends
{ message: 'Something changed' }to all connections when a message is received.
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