gistfile1.txt

var express = require( 'express' );

app = express();

app.get( '/', function( req, res ) {
	console.log( 'app: index' );
	res.send( 200 );
});

subApp = express();

subApp.use( function( req, res, next ) {
	console.log( 'subApp: middleware, called for app\'s routes, called twice for subApp\'s routes' );
	next();
});

subApp.use( '/subapp', function( req, res, next ) {
	console.log( 'subApp: middleware, called once for subApp\'s routes' );
	next();
});

subApp.get( '/subapp/page', function( req, res ) {
	console.log( 'subApp: page' );
	res.send( 200 );
});

app.use( subApp );
app.listen( 3000 );