A simple NodeJS server for testing

To test our network communications, it seems fitting that we implement a small server using Node.js to implement the endpoints that we are testing. In a separate directory from our Vue application, open a terminal window and enter the following command:

$ npm init

The command-line wizard will ask you a few questions to create the package.json file that represents a Node.js application. When it is done, run this command to install the Express.js dependency, which will give us a framework to create a web server:

$ npm install express cors

Once the process completes, create an index.js file with the following code:

./server/index.js

const express = require("express")                     //1
const cors=require("cors")                ...