server.js

var express = require('express');
var morgan = require('morgan');
var path = require('path');

var app = express();
app.use(morgan('combined'));

var articles = {
 'article-one' :{
    title: 'Article One | M. Ram Gopal',
    heading: 'Article One',
    date: 'Sep 5, 2016',
    content: `
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
         
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
         
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
    `
},
 'article-two' :{
     title: 'Article Two | M. Ram Gopal',
    heading: 'Article Two',
    date: 'Sep 10, 2016',
    content: `
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
         
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
         
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
    `
 },
 'article-three' :{
     title: 'Article Three | M. Ram Gopal',
    heading: 'Article Three',
    date: 'Sep 15, 2016',
    content: `
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
         
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
         
         <p>
             This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.This is the content of first article.
         </p>
    `
 },
};
function createTamplate (data){
 var title =data.title;
 var date =data.date;
 var heading = data.heading;
 var content = data.content;
 
 var htmlTemplate = `<html>
  <head>
      <title>
          ${title}
      </title>
      <meta name="viewport" content="width=device-width, initial-scale=1" />
      <link href="/ui/style.css" rel="stylesheet" />
  </head>
  <body>
     <div class="container">
       <div>
          <a herf="/">Home</a>
       </div>
       <hr/>
       <h3>
         ${heading}
       </h3>
        <div>
          ${date}
        </div>
        <div>
        ${content}
        </div>
     </div>
  </body>
     

 </html>
 `
 return htmlTemplate;
}
app.get('/', function (req, res) {
  res.sendFile(path.join(__dirname, 'ui', 'index.html'));
});

var counter = 0;
app.get('/counter',function (req, res) {
    counter = counter + 1;
    res.send(counter.tostring());
});
var names = []
app.get('/submit-name',function(req,res){ //URL: /submit-name?name=xxxxx
    // Get the name from the request
    var name = req.query.name;
    params.name;
    names.push(name);
    // JSON: Javascript Object Notation
    res.send(JSON.stringify(names)); // TODO
})
app.get('/:articleName', function (req, res) {
  //articleName == article-one
  //article[articleName] == {} content object for article one
  var articleName = reg.params.articleName;
  res.send(createTemplate(articles[articleName]));
});



app.get('/ui/style.css', function (req, res) {
  res.sendFile(path.join(__dirname, 'ui', 'style.css'));
});

app.get('/ui/madi.png', function (req, res) {
  res.sendFile(path.join(__dirname, 'ui', 'madi.png'));
});





// Do not change port, otherwise your app won't run on IMAD servers
// Use 8080 only for local development if you already have apache running on 80

var port = 80;
app.listen(port, function () {
  console.log(`IMAD course app listening on port ${port}!`);
});