server.js

'use strict';

const express = require('express');
const logger = require('./utils/logger');
const bodyParser = require('body-parser');
var assets = require("./assets");
const app = express();

app.use("/assets", assets);
const exphbs = require('express-handlebars');
app.use(bodyParser.urlencoded({ extended: false, }));
app.use(express.static('public'));
app.engine('.hbs', exphbs({
  extname: '.hbs',
  defaultLayout: 'main',
  helpers: {
    CalculateDuration: function (songs) {
       let total=0;
       for (let i in songs) {
          total+=songs[i].duration;
       }
       return total + ' mins';
    }
  }
}));
app.set('view engine', '.hbs');

const routes = require('./routes');
app.use('/', routes);

const listener = app.listen(process.env.PORT || 4000, function () {
  logger.info(`gomix-template-1 started on port ${listener.address().port}`);
});