Node Demo

Agenda

1. Setting up
2. Console Application
3. Node Web Basics
4. Making a Web Server
5. Modules in Node
6. Restful API in Node
7. Socket.IO

Setting up

1. Clone your fork of the repository.

    git clone https://github.com/blinemedical/node-demo.git
    

2. Open demo directory.
3. Run npm install with the demo directory.
4. Run bower install within the demo directory.

Introduce Node

• Async, event driven JavaScript on the frontend (https://developer.mozilla.org/en-US/docs/Web/API/Event)
• Async, event driven JavaScript on the backend (http://nodejs.org/api/events.html).
• One language
• V8 engine, fast JS interpreter built by Google
• Single process (thread), shared state vs traditional webservers (thread per request)
• Event loop
• Build up abstractions
• Node REPL
• NPM, dependency management
• Ecosystem

Console Application

Demonstrate how to write a simple console application using Node.

Node Web Basics

Code Example

	var http = require('http');

	var server = http.createServer(function(req, res) {
		//server code
	})

	server.listen(8081);
	console.log('server listening on 8081');

Making a Web Server

	function serveStatic(response, absolutePath)
	{
		fs.exists(absolutePath, function(exists)
		{
			if (!exists)
			{
				send404(response);
				return;
			}

			fs.readFile(absolutePath, function (err, data)
			{
				if (err)
				{
					send404(response);
					return;
				}

				var mimeType = mime.lookup(path.basename(absolutePath));
				response.writeHead(200, {'Content-Type' : mimeType});
				response.end(data);
			});
		});
	}

Modules in Node

• Demonstrate how to create modules
• Show how to use modules in different parts of application
• Each file is its own scope, pass data through exports

Restful API with Database in Node

• Show how to write a Restful API
• Demonstrate how to connect to a SQLite database

Socket.IO

• Cover code sample and how everything is hooked up
• Show off Socket.IO

Workshop

• Option 1, enhance existing demos
• Option 2, build from scratch (a plug.dj clone)
• Demos at the end of the workshop.