text: var express = require("express");
  var bodyparser = require("body-parser");
  var exphbs = require("express-handlebars");
  
  var app = express();
  
  var PORT = process.env.PORT || 8080;
  
  app.use(express.static("public"));
  
  app.use(bodyparser.urlencoded({extended: true}));
  app.use(bodyparser.json());
  
  app.engine("handlebars", exphbs({ defaultLayout: "main" }));
  app.set("view engine", "handlebars");
  
  var routes = require("./controllers/burgers_controller.js");
  app.use(routes);
  
  app.listen(PORT, function(){
      console.log("Server listening on: http://localhost:" + PORT);
  });
  
  
  