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Answers for "create node js server"

Javascript
2

what does http.createserver do

var http = require('http'); // Import Node.js core module

var server = http.createServer(function (req, res) {   //create web server
    if (req.url == '/') { //check the URL of the current request
        
        // set response header
        res.writeHead(200, { 'Content-Type': 'text/html' }); 
        
        // set response content    
        res.write('<html><body><p>This is home Page.</p></body></html>');
        res.end();
    
    }
    else if (req.url == "/student") {
        
        res.writeHead(200, { 'Content-Type': 'text/html' });
        res.write('<html><body><p>This is student Page.</p></body></html>');
        res.end();
    
    }
    else if (req.url == "/admin") {
        
        res.writeHead(200, { 'Content-Type': 'text/html' });
        res.write('<html><body><p>This is admin Page.</p></body></html>');
        res.end();
    
    }
    else
        res.end('Invalid Request!');

});

server.listen(5000); //6 - listen for any incoming requests

console.log('Node.js web server at port 5000 is running..')
Posted by: Guest on December-04-2020
40

how to create node js server

/* ====== create node.js server with core 'http' module ====== */
// dependencies
const http = require("http");

// PORT
const PORT = 3000;

// server create
const server = http.createServer((req, res) => {
   if (req.url === "/") {
      res.write("This is home page.");
      res.end();
   } else if (req.url === "/about" && req.method === "GET") {
      res.write("This is about page.");
      res.end();
   } else {
      res.write("Not Found!");
      res.end();
   }
});

// server listen port
server.listen(PORT);

console.log(`Server is running on PORT: ${PORT}`);

/* ========== *** ========== */

/* ====== create node.js server with express.js framework ====== */
// dependencies
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.");
});

// PORT
const PORT = 3000;

app.listen(PORT, () => {
   console.log(`Server is running on PORT: ${PORT}`);
});


// ======== Instructions ========
// save this as index.js
// you have to download and install node.js on your machine
// open terminal or command prompt
// type node index.js
// find your server at http://localhost:3000
Posted by: Guest on January-09-2021
2

create server with node js

const express = require('express');
const server = express();

const PORT = 3000;

// Homme page
server.get('/', (req, res) => {
  return res.send("<h1 style='text-align: center;'>Hello,<br />from the Express.js server!</h1>");
})

// About page
server.get('/about', (req, res) => {
  return res.send('<h2 style="text-align:center">About us</h2>');
})

// 404 page
server.use((req, res, next) =>{
  res.status(404);

  // respond with html page
  if (req.accepts('html')) {
    res.sendFile(__dirname + '/error404.html');
    return;
  }
  // respond with json
  else if (req.accepts('json')){
    res.send({
      status: 404,
      error: 'Not found'
    });
    return;
  }
  // respond with text
  else {
    res.type('txt').send('Error 404 - Not found');
  }
});

server.listen(PORT, () => {
  console.log(`Server is running on port ${PORT}`);
});
Posted by: Guest on April-16-2021
2

simple node server

// content of index.js
const http = require('http')
const port = 3000

const requestHandler = (request, response) => {
  console.log(request.url)
  response.end('Hello Node.js Server!')
}

const server = http.createServer(requestHandler)

server.listen(port, (err) => {
  if (err) {
    return console.log('something bad happened', err)
  }

  console.log(`server is listening on ${port}`)
})
Posted by: Guest on May-08-2020
0

nodejs server code

const http = require('http');

const hostname = '127.0.0.1';
const port = 3000;

const server = http.createServer((req, res) => {
  res.statusCode = 200;
  res.setHeader('Content-Type', 'text/plain');
  res.end('Hello World');
});

server.listen(port, hostname, () => {
  console.log(`Server running at http://${hostname}:${port}/`);
});
Posted by: Guest on April-28-2020
1

create node js server

import express from 'express';
const server = express();

const port = 8080;

server.get('/', (req, res) => {
  return res.send('Hello, Express.js!');
})

server.listen(port, () => {
  console.log(`Server is running on port ${port}`);
});
Posted by: Guest on March-07-2021

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