sample express app
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:${port}`))sample express app
const express = require('express')
const app = express()
const port = 3000
app.get('/', (req, res) => res.send('Hello World!'))
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))create express app
## Command
$ npx express-generator
: 'For earlier Node versions, install the application generator as a global
npm package and then launch it':
$ npm install -g express-generator
$ express
## Display the command options with the -h option:
$ express -hrequire express server.js
const express = require('express')const app = express() app.get('/', function (req, res) { res.send('Hello World')}) app.listen(3000)express in node js
$ npm init --y //add the package.json file
$ npm install express --no-save
const express = require('express')
const app = express()
//cors to fix cors origin, body-parser to fix the post value on the server
const cors = require('cors');
const bodyParser = require('body-parser');
app.use(cors());
app.use(bodyParser.json());
const port = 3000
app.get('/', (req, res) => {
res.send('Hello World!')
})
router.get('/admin/:id?', (req, res) => {
let id = req.params.id;
}
app.post('/admin', (req, res) => {
const user = req.body.user;
res.send('Hello World!', user)
})
app.listen(port, () => {
console.log(`Example app listening at http://localhost:${port}`)
})express nodejs
Fast, unopinionated, minimalist web framework for Node.jsCopyright © 2021 Codeinu
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