Keep it Suntory™ DRY

app.js

var getStructure = function(req, res, next) {
	db.findOne({name: req.params.name}, function(err, result) {
		res.json(result);
	});
}

app.get('/structure/:name', getStructure);

app.post('/structure/:name/save', function(req, res, next) {
	var structure = req.body;
	
	db.save(structure, function(err, result) {
		next();
	});
}, getStructure);