express .router code example
Example 1: express hello world
const express = require('express')
const app = express()
const port = 3000
app.get('/', (req, res) => res.send('Hello World!'))
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))
Example 2: express router file
var express = require('express');
var router = express.Router();
router.use(function timeLog (req, res, next) {
console.log('Time: ', Date.now());
next();
});
router.get('/', function (req, res) {
res.send('Birds home page');
});
router.get('/about', function (req, res) {
res.send('About birds');
});
module.exports = router;
Example 3: express route parameters
Route path: /users/:userId/books/:bookId
Request URL: http://localhost:3000/users/34/books/8989
req.params: { "userId": "34", "bookId": "8989" }