Where is the right place to keep node.js application logic?

Question

Node.js

If you take express, then it is rendered directly in the router

var express = require('express');
var router = express.Router();

router.get('/', function(req, res, next) {
  res.render('index', { title: 'Express' });
});

module.exports = router;

Maybe it would be more correct to return that part of the application that is responsible for the logic of the route, and already render in it?

Answer 1

function(req, res, next) {
  res.render('index', { title: 'Express' });
}

you put it in the controller
./controllers/controllerName.js:

module.exports.routeName = function(req, res, next) {
  res.render('index', { title: 'Express' });
};

Connect to app:

const controllerName = require('./controllers/controllerName.js');
router.get('/', controllerName.routeName);