Setting Up Socket.io
3:52:39 - 4:02:27 Setting Up Socket.io Socket.io is a Node module that enables real-time bidirectional communication in the browser. It's built on top of the native HTML5 Web Socket API. Kyle shows how to install and set up Socket.io with the current Node application.an inital http request for a websocket
response an upgrade protocol to persistent websocket connection
you want to be using SSL
socket.io is an extension to websockets: handshakes (that the server received your message)
for his example, at the time of the workshop he suggests to use:npm install socket.io@0.9.16 var io = require("socket.io").listen(http_serv);(where
var http_serv = http.createServer(handleHTTP).listen(port, host); ) see note:Node as a Webserver )
note: the
it will hijack the httpServer and listen for websockets requests var io should point to the socket library and not the module, hence we have to call .listen(http_serv); when assigning the module to io the
handleHTTP will continue to functionthen in the client:
<script src="/socket.io/socket.io.js"></script> the above hijacking will automatically handle the request for socket.io.js filethen you get a global called
io from socket.io