Before you can use the Socket.io module, you will need to install it using npm. To do so, change your package.json file as follows:
{
"name": "MEAN",
"version": "0.0.9",
"dependencies": {
"express": "~4.8.8",
"morgan": "~1.3.0",
"compression": "~1.0.11",
"body-parser": "~1.8.0",
"method-override": "~2.2.0",
"express-session": "~1.7.6",
"ejs": "~1.0.0",
"connect-flash": "~0.1.1",
"mongoose": "~3.8.15",
"passport": "~0.2.1",
"passport-local": "~1.0.0",
"passport-facebook": "~1.0.3",
"passport-twitter": "~1.0.2",
"passport-google-oauth": "~0.1.5",
"socket.io": "~1.1.0"
}
}To install the Socket.io module, go to your application's root folder and issue the following command in your command-line tool:
$ npm install
As usual, this will install the specified version of Socket.io in your node_modules folder. When the installation process is successfully over, your will need be to configure your Express application...