JavaScript as a Server side language (NodeJS): JSConf 2011, Dhaka
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JavaScript as a Server side language (NodeJS): JSConf 2011, Dhaka

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JSCon 2011, arranged by phpXperts. held in American International University Bangladesh.

JSCon 2011, arranged by phpXperts. held in American International University Bangladesh.

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JavaScript as a Server side language (NodeJS): JSConf 2011, Dhaka JavaScript as a Server side language (NodeJS): JSConf 2011, Dhaka Presentation Transcript

  • NodeJS JS as a Server-side Language Iraj Islam @irajislam Nurul Ferdous @ferdous NewsCredSaturday, September 17, 2011
  • Agenda NewsCred • Part 1. NodeJS • Part 2. ExpressJS • Questions?Saturday, September 17, 2011
  • Who We Are NewsCred Iraj Islam CTO/Co-founder, NewsCred Nurul Ferdous Senior Software Engineer, NewsCredSaturday, September 17, 2011
  • Part 1 NodeJS NewsCredSaturday, September 17, 2011
  • Server-side JS NewsCredSaturday, September 17, 2011
  • What’s NodeJS? NewsCred NodeJS What’s this all about?Saturday, September 17, 2011
  • What’s NodeJS? NewsCred NodeJS Evented I/O for V8 JavaScript.Saturday, September 17, 2011
  • What’s NodeJS? NewsCred Goal “Provide an easy way to build scalable network programs.”Saturday, September 17, 2011
  • History NewsCred The Evolution of the Web From static pages to real time data.Saturday, September 17, 2011
  • Why NodeJS? NewsCred The Age of Big Data Exabytes (1018) of data stored per year 1000 750 500 250 2006 2007 2008 0 2009 2010Saturday, September 17, 2011
  • Why NodeJS? NewsCred The Fast Food Analogy Synchronous vs. AsynchronousSaturday, September 17, 2011
  • Why NodeJS? NewsCred The Apache Solution Synchronous I/O Application File User readFile(); System getTweets(); Twitter API writeToDb(); MySQLSaturday, September 17, 2011
  • Why NodeJS? NewsCred The Apache Solution Blocking I/O Application File User readFile(); System Waiting... getTweets(); Twitter API Waiting... writeToDb(); MySQLSaturday, September 17, 2011
  • Why NodeJS? NewsCred The NodeJS Solution Asynchronous I/O Application File User readFile(); System getTweets(); Twitter API writeToDb(); MySQLSaturday, September 17, 2011
  • Why NodeJS? NewsCred The NodeJS Solution Non-blocking I/O Application File User readFile(); System getTweets(); Twitter API writeToDb(); MySQLSaturday, September 17, 2011
  • NodeJS Benefits NewsCred • Fast • Built on top of Google’s V8 JavaScript engine. • Scalable • Asynchronous, event-driven I/O model yields web scale. • Programmable • JavaScript API and pluggable module architecture.Saturday, September 17, 2011
  • NodeJS Use Cases NewsCred • Serving APIs • Serving real-time apps • Serving web apps • Streaming dataSaturday, September 17, 2011
  • NodeJS “Hello World!” NewsCred var http = require(http); http.createServer(function (request, response) { response.writeHead(200, {Content-Type: text/plain}); response.writeHead(Hello World!); }).listen(1337, 127.0.0.1);Saturday, September 17, 2011
  • Who’s Using NodeJS? NewsCredSaturday, September 17, 2011
  • Installing NodeJS NewsCred • Installing on Unix • Installing on Windows • Run http://nodejs.org/dist/v0.5.6/node.exeSaturday, September 17, 2011
  • Installing npm NewsCred • Node Package Manager (npm) • One line install: • curl http://npmjs.org/install.sh | sudo sh • Multi-line install: • Get the code from http://github.com/isaacs/npm • Do what the REAMME saysSaturday, September 17, 2011
  • Part 2 ExpressJS NewsCredSaturday, September 17, 2011
  • What’s ExpressJS? NewsCred ExpressJS High-performance NodeJS web framework.Saturday, September 17, 2011
  • Why ExpressJS? NewsCred • Full blown feature set • Routing • View rendering/templating • Sessions • Good documentation • Lots of examples • Many extensionsSaturday, September 17, 2011
  • Installing ExpressJS NewsCredSaturday, September 17, 2011
  • Directory Structure NewsCredSaturday, September 17, 2011
  • Configuration NewsCredSaturday, September 17, 2011
  • Application Settings NewsCredSaturday, September 17, 2011
  • Routing NewsCredSaturday, September 17, 2011
  • View Rendering NewsCred • Haml templates • Haml • Jade • Embedded JavaScript (EJS) templates • Coffeekup templates • Uses CoffeeScript • jQuery templatesSaturday, September 17, 2011
  • Views with Jade NewsCredSaturday, September 17, 2011
  • Sessions NewsCred • Currently cookie-based • Data store can be Redis, memory etc.Saturday, September 17, 2011
  • Packages NewsCred $ npm install -d # for installing dependanciesSaturday, September 17, 2011
  • Resources NewsCred • NodeJS • http://nodejs.org • http://github.com/dynamicguy/node-mongo-cms • ExpressJS • http://expressjs.com • Sencha Connect • http://github.com/senchalabs/connect/wikiSaturday, September 17, 2011
  • Questions? NewsCred Iraj Islam iraj@newscred.com, @irajislam Nurul Ferdous nurul@newscred.com, @ferdousSaturday, September 17, 2011