express모듈 설치명령

npm install express


var express = require('express')

  , http = require('http')

  , app = express()

  , server = http.createServer(app);

 

app.get('/', function (req, res) {

  res.send('Hello Express!');

});

 

app.get('/world.html', function (req, res) {

  res.send('Hello World Page');

});

 

server.listen(8000, function() {

  console.log('Express server listening on port ' + server.address().port);

}); 


AND