express node server code example
Example 1: express.js server
const express = require("express");
const app = express();
app.get("/", (req, res) => {
res.send("This is home page.");
});
app.post("/", (req, res) => {
res.send("This is home page with post request.");
});
const PORT = 3000;
app.listen(PORT, () => {
console.log(`Server is running on PORT: ${PORT}`);
});
Example 2: express hello world
const express = require('express')
const app = express()
const port = 3000
app.get('/', (req, res) => res.send('Hello World!'))
app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))
Example 3: node.js express
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 4: node js express
basic server
const express =require('express');
const app = express();
const PORT = 5000;
app.get('/',(req,res)=>{
res.json({message: 'Welcome to the backend'})
})
app.listen(PORT ,()=>console.log(`Connected to ${PORT}`)
Example 5: express and node
const http = require("http");
const hostname = "127.0.0.1";
const port = 8000;
const server = http.createServer((req, res) => {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Hello World\n');
});
server.listen(port, hostname, () => {
console.log(`Server running at http://${hostname}:${port}/`);
})
Example 6: require express server.js
const express = require('express')const app = express() app.get('/', function (req, res) { res.send('Hello World')}) app.listen(3000)