lift introduction

Dave Briccetti

@dcbriccetti

Indrajit Raychaudhuri

@indrajitr

http://www.siliconvalley-codecamp.com/Speakers.aspx?AttendeeId=1078

http://www.siliconvalley-codecamp.com/Speakers.aspx?AttendeeId=1078


• Secure

• Interactive

• Designer Friendly


• Secure

• Interactive


• Scalable


• Secure

• Interactive


• Scalable

Super Easy !!


About Us• Dave Briccetti

• Veteran software developer

• Teacher in love with programming

• Indrajit Raychaudhuri

• Active Lift committer

• Hacker trying to do programming


The Project


The Project• Started by David Pollak (@dpp) in 2006

• Community (> 3000 members in ML)

• Committers from around the world

• Stable master philosophy


The Project

• Developers ≠ Plumbers

• Best concepts from other frameworks


The Project


The Project• Open Source (Apache 2.0 License)

• Ready on a JVM near you

• Full Java EE compliance

• Works in all modern servlet containers

• Batteries included (user replaceable)


The Project• Best implementation on JVM for

Comet Ajax

REST Templating


Secure Lift


• Definitive strategy tackles OWASP Top 10

• So you don’t have to bother

Secure Lift


• Definitive strategy tackles OWASP Top 10

• So you don’t have to bother

Secure Lift

“.name *” #> “<script>alert(‘hi’);</script>”


Interactive Lift


Interactive Lift• Great support for Comet and AJAX

• Great REST Support

• Parallel Rendering of Snippets

• Lazy Rendering of Snippets






serve { case "api" :: "user" :: AsLong(id) :: _ XmlGet _ => <b>ID:{id}</b> case "api" :: "user" :: AsLong(id) :: _ JsonGet _ => JInt(id) }






// HTML<div class="lift:FetchTicker?parallel=true"> Ticker server #1: <span class="ticker">The Ticker</span></div>// Snippetobject FetchTicker { def render = { Thread.sleep(500 millis) // The call ".ticker" #> Thread.currentThread.getName // The result }}






// HTML<div class="lift:LazyLoad"> <span class="lift:LongTime"> I started this computation at <span id="start">start</span> and it completed at <span id="end">end</span>. </span></div>// Snippetobject LongTime { def render = { val start = now Thread.sleep(randomLong(15 seconds)) "#start" #> start.toString & "#end" #> now.toString }}


Designer Friendly Lift


Designer Friendly Lift• Step 1: Get designers to write pure XHTML, HTML5

• Step 2: There isn’t any!


Scalable


Scalable• Fast path for handling REST/Ajax/Comet

• No additional layers (e.g. bolt-on security)

• Foursquare and UK Guardian serve millions of pages a day with Lift


Summary• Tremendously secure

• Highly Interactive Web apps simple

• Very friendly to designers

• Successful large scale deployments


Resources• Source [github.com/lift]

• Books

• Simply Lift [simply.liftweb.net]

• Exploring Lift [exploring.liftweb.net]

• Wiki [wiki.liftweb.net]

• Mailing List [googlegroups.com/group/liftweb]

Scala: A Quick Primer


Smarter Java• Runs on JVM, interoperated with any JVM language

• Functional (and OO too!)

• It’s a lot easier than you think

• Stories from the trenches

Demo: TalkingPuffin Web

Questions?

lift introduction

Technology