Express 2 to Express 4.x

express-2-to-4-x.txt

Express 2 was used in the course and the current version is 4.x.

you can't just use 'urlencoded' anymore, you have to:

npm install body-parser

and
var bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));

rather than
app.use(express.urlencoded());