NodeJS ExpressJS Getting Raw Body on request object

ExpressJS rawBody

app.configure(function() {
	//. . .
	app.use(express.bodyParser());
	app.use(function(req, res, next) {
	        var data = '';
	        req.setEncoding('utf8');
	        req.on('data', function(chunk) { 
	            data += chunk;
	        });
	        req.on('end', function() {
	            req.rawBody = data;
	        });
	        next();
	    });
	
	//. . .
});