Today we will learn how to implement socket programming with opencart. For implement the socket programming we first need to install node.js on our server. After this we have to create a package.json file parallel to your opencart root directory. Now we have to write the code for including the socket.io package or other required package into package.json file.
Description:- We have to define some parameters before using socket.io programming. Those are following:
Name: Into package.json file we have to define our Application Name which we are going to implement.
Version: Its show dependency version.
Description: You can use description parameter for defining description to your application.
Dependencies: Under this parameter we have to define the package name which are going to use into our application.
After doing all this we have to install these package which we defined into package.json file. Go to your terminal and type theme command:-
Command to install the node into your opencart root directory:-
$ npm install
You can also install a particular dependency by defining the dependency name into command:
$ npm install socket.io
After installing the required package(dependencies) you will find a directory node_modules with all the dependency to your opencart root directory.
Now you can use socket.io javascript library in you application. In next blog we will explain how to implement a chat application. Thanks for reading this blog 
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