---
title: "Server-Side JavaScript With Node.js"
description: "Installing node.js on a Debian machine : sudo apt-get install g++ curl libssl-dev apache2-utils git-core git clone cd..."
url: "https://h3manth.com/scribe/server-side-javascript-nodejs/"
canonical_url: "https://h3manth.com/scribe/server-side-javascript-nodejs/"
markdown_url: "https://h3manth.com/scribe/blog/server-side-javascript-nodejs.md"
publishDate: "2011-03-13T00:00:00.000Z"
author: "Hemanth HM"
category: "javascript"
tags: ["nodejs","javascript","ubuntu","git"]
word_count: 326
reading_time_minutes: 2
x_markdown_tokens: 806
content_signal: "ai-train=yes, search=yes, ai-input=yes"
---

# Server-Side JavaScript With Node.js

> Installing node.js on a Debian machine : sudo apt-get install g++ curl libssl-dev apache2-utils git-core git clone cd...

##  node.js => evented I/O for v8 javascript 

Installing node.js on a Debian machine : 
    
    
    sudo apt-get install g++ curl libssl-dev apache2-utils git-core
    git clone http://github.com/joyent/node.git
    cd node
    ./configure
    make
    sudo make install
    

### Check for help : 
    
    
    $ node
    > .help
    .clear    Break, and also clear the local context.
    .exit    Exit the prompt
    .help    Show repl options
    

### Hello Node!
    
    
    cat > hello.js
    var sys = require("sys"); 
    sys.puts("Hello Node!");
    

Now in the same terminal do a **node hello.js** and you will see **Hello Node!** Sounds like fun? Lets see more of it!

### HTTP server that responds as Hello Node!
    
    
    cat > server.js
    var http = require('http'); 
    http.createServer(function (req, res) { 
        res.writeHead(200, {'Content-Type': 'text/plain'}); 
        res.end('Hello Node!\n'); 
    }).listen(8124, "127.0.0.1"); 
    console.log('Server running at http://127.0.0.1:8124/');
    

Now running **node server.js** will print the url link as in the console.log(); open that link will render Hello Node! On the browser!

###  One line HTTP Server with Node.js! 
    
    
    require('http').createServer(function(req,res){res.writeHead(200, {}); res.end('Hello Node!');}).listen(8125);
    

The above line is just for the fun of it and no one is supposed to write such clumsy **~~CODE~~**. What basically that line does is it includes http module, invoke createServer() to which a function to handle the request event is passed which listens to port 8125.

###  TCP server with Node.js
    
    
    var net = require('net');
    
    var server = net.createServer(function (socket) {
      socket.write("Echo server\r\n");
      socket.pipe(socket);
    })
    
    server.listen(8124, "127.0.0.1");
    

### HTTP CLIENT with node.js
    
    
    var http = require('http');
    
    var params = {
      host: 'www.google.com',
      port: 80,
      path: '/',
      method: 'GET'
    };
    
    var req = http.request(params, function(res) {
      console.log(res);
      res.on('data', function(data) {
        console.log(data);
      });
    });
    
    req.end();
    
    // RAW Data
    
    var req = http.get({host:'www.google.com', port:80, path:'/'}, function(res) { 
        console.log(res); 
        res.on('data', function(c) { 
           console.log(c); 
        }); 
    });
    
    // End
    req.end();
    
    // UTF8 encoded 
    var req = http.get({host:'www.google.com', port:80, path:'/'}, function(res) { 
        res.setEncoding('utf8'); 
        res.on('data', function(c) { 
            console.log(c); 
        }); 
    });
    
    // Indeed 
    req.end();
    

**So far was just a glimpse of node.js much much more is doable with it, have fun! Do share your code below!**