text: var express = require("express");
  var bodyParser = require("body-parser");
  
  var PORT = process.env.PORT || 3900;
  
  var app = express();
  
  app.use(express.static("public"));
  
  app.use(bodyParser.urlencoded({ extended: false}));
  
  app.use(bodyParser.json());
  
  var exphbs = require("express-handlebars");
  
  app.engine("handlebars", exphbs({ defaultLayout: "main" }));
  app.set("view engine", "handlebars");
  
  var routes = require("./controllers/burgersController.js");
  
  app.use(routes);
  
  app.listen(PORT, function() {
      console.log("App now listening at localhost:" + PORT);
  });