1. Using express router to make app.js clutter free
app.get('/', (req, res) => { ...
app.get('/about', (req, res) => { ...
app.get('/blogs', (req, res) => { ...
app.post('/blogs', (req, res) => { ...
app.delete('/blogs/:id', (req, res) => { ...
app.get('/blogs/:id', (req, res) => { ...
app.use((req, res) => { ...
There are 5 routes with prefix /blog. We can move it to another to make app.js clutter free.
/routes/blogRouter.js:
const express = require('express');
const router = express.Router();
const Blog = require('../models/blog');
router.get('/', (req, res) => {...
router.post('/', (req, res) => {...
router.delete('/:id', (req, res) => {...
router.get('/create', (req, res) => {...
router.get('/:id', (req, res) => {...
module.exports = router
and the app.js
const blogRouter = require('./routes/blogRouter');
app.get('/', (req, res) => {...
app.get('/about', (req, res) => {...
app.use('/blogs', blogRouter)
app.use((req, res)=>{...
2. MVC - Model, View, Controller
We've already seen models, and views.
Controller is , moving the functions which communicate with models to an another folder generally called 'controllers'.
/controllers/blogController.js
const blog_index = (req, res) => {
Blog.find().sort({ createdAt: -1})
.then( results => {
res.render('blogs/index', { title: 'Home', blogs: results });
})
.catch( err => {
res.render('blogs/index', { title: 'Home', blogs: [] });
})
}
and using this blog_index function from blogRouter.js
router.get('/', blogController.blog_index);
Useful naming convention example is:
blog_index, blog_details, blog_delete, blog_create_get, blog_create_post
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