text: var express = require("express");
  var bodyParser = require("body-parser");
  var methodOverride = require("method-override");
  
  var PORT = process.env.PORT || 3000;
  
  var app = express();
  
  // Serve static content for the app from the "public" directory in the application directory.
  app.use(express.static("public"));
  
  // parse application/x-www-form-urlencoded
  app.use(bodyParser.urlencoded({ extended: false }));
  
  // parse application/json
  app.use(bodyParser.json());
  
  app.use(methodOverride("_method"));
  
  // Set Handlebars.
  var exphbs = require("express-handlebars");
  
  app.engine("handlebars", exphbs({ defaultLayout: "main" }));
  app.set("view engine", "handlebars");
  
  // Import routes and give the server access to them.
  var routes = require("./controllers/burgers_controller.js");
  
  app.use(routes);
  
  app.listen(PORT, function() {
      console.log("App now listening at localhost:" + PORT);
  });