Learning Node.JS Programming

April 2014 - Better late than never, but I should have begun this process a few months ago.

• http://jothut.com/cgi-bin/junco.pl/tag/nodejs
• http://jothut.com/cgi-bin/junco.pl/b/17499/NodeJS-for-newbies
• http://nodejs.org
• https://www.npmjs.org
• http://nodejs.org/docs/v0.4.11/api/http.html#http.request
• http://package.json.nodejitsu.com
• http://inessential.com/2013/12/09/getting_started_with_node_js_for_cocoa_
• http://inessential.com/2013/12/09/getting_started_with_web_services_using_
• http://expressjs.com/4x/api.html
• http://howtonode.org/hello-node
• http://www.2ality.com/2011/12/nodejs-shell-scripting.html

Hello World at Command Prompt

Open up a text file and enter:

// Call the console.log function.
console.log("Hello World");

Save file as hello-console.js and then at the command prompt, execute:
node hello-console.js

Obviously, that produces:
Hello World

Hello World HTTP Server

Add the following code to a file called:
hello-server.js

// Load the http module to create an http server.
var http = require('http');

// Configure our HTTP server to respond with Hello World to all requests.
var server = http.createServer(function (request, response) {
  response.writeHead(200, {"Content-Type": "text/plain"});
  response.end("Hello World\n");
});

// Listen on port 8000, IP defaults to 127.0.0.1
server.listen(8000);

// Put a friendly message on the terminal
console.log("Server running at http://127.0.0.1:8000/");

Execute the code with:
node hello-server.js

The following message will be displayed to the console:
Server running at http://127.0.0.1:8000/

Point the browser to the domain/sub domain with the port included. Example:
http://nodejs.soupmode.com:8000

If the above server code is running, then the following will be displayed in the browser:
Hello World

To stop this server app, hit Ctrl-C at the comm #nodejs - #programming - #javascript - #howto