Lately I have been woking on socket.io, trying to learn what it is all about and how to use it.
This is what I did on my local machine trying to get a simple app to work:
-Installed node.js from http://nodejs.org/ (on 64-bit win8)
-Installed socked.io module on node.js using npm (node package manager) (http://socket.io/#how-to-use)
-Quickly created a sample application using node
-Started node server
-Opened my index.html file
require is not defined
io is not defined
I was following some examples and everything seemed right to me but there was one thing that I had done different from the samples I had inspected on the net. These samples showed the reference to socket.io.js as below:
<script src="http://localhost:<port number>/socket.io/socket.io.js"></script>
But when I checked the socked.io installation I saw no “socket.io” folder with “socket.io.js” file in it, so I thought they were using older versions of socket.io and/or node.js in the samples, and I decided to change the “socket.io.js” reference as below:
Because that was where socket.io.js file was. Apparently I was wrong!
You have to explicitly state host, port and socket.io directory, because socket.io.js file is served from the node server that way.
Hope this helps someone.