Basic routing using HTTP Node Js

 

const http = require('http');

let  index = (req, res) => {

 res.writeHead(200);

 res.end('Hello, World!');

}

http.createServer((req, res) => {

    if (req.url === '/') //If user given route is /

    {

        return index(req, res);

    }

    else ////If user given route is not /

    {

        res.writeHead(404);

        res.end(http.STATUS_CODES[404]);

    }

}).listen(2000);

OUTPUT:- 

 check if (request.url === '/'), and then call a function that responds with a new file.

If we continue to define our "routes" like this, though, we will end up with one massive callback function, and we don't want a giant mess like that, so let's see if we can clean this up. 

const http = require("http");

var routes = {

  "/": (req, res) => {

    res.writeHead(200);

    res.end("Hello, World!");

  },

  "/name": (req, res) => {

    res.writeHead(200);

    res.end('My name is Demo');

  },

};

http.createServer(function (req, res) {

    if (req.url in routes) {

      return routes[req.url](req, res);

    }

    res.writeHead(404);

    res.end(http.STATUS_CODES[404]);

  }).listen(2000);

OUTPUT:-