Node app

Require express server.js

const express = require('express')const app = express() app.get('/', function (req, res) {  res.send('Hello World')}) app.listen(3000)

Source: npmjs.com

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}`))

Source: expressjs.com

Node js server

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}`))

Node app

var express = require('express');
var app = express();
var PORT = 3000;
  
app.route('/user')
.get((req, res, next) => {
    res.send('GET request called');
})
.post((req, res, next) => {
res.send('POST request called');
})
.all((req, res, next) => {
res.send('Other requests called');
})
  
app.listen(PORT, function(err){
    if (err) console.log(err);
    console.log("Server listening on PORT", PORT);
});

Source: geeksforgeeks.org

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