Lift Introduction

Lift and Scala presentation at Silicon Valley Code Conf (10/09/2011 @ Foothill College)

Transcript

1. Dave Briccetti @dcbriccetti Indrajit Raychaudhuri @indrajitr
2. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC
3. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC • Secure • Interactive • Designer Friendly
4. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC • Secure • Interactive • Designer Friendly • Scalable
5. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC • Secure • Interactive • Designer Friendly • Scalable Super Easy !!
6. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC About Us • Dave Briccetti • Veteran software developer • Teacher in love with programming • Indrajit Raychaudhuri • Active Lift committer • Hacker trying to do programming
7. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC The Project
8. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC The Project • Started by David Pollak (@dpp) in 2006 • Community (> 3000 members in ML) • Committers from around the world • Stable master philosophy
9. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC The Project • Developers ≠ Plumbers • Best concepts from other frameworks
10. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC The Project
11. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC 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)
12. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC The Project • Best implementation on JVM for Comet Ajax REST Templating
13. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Secure Lift
14. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC • Definitive strategy tackles OWASP Top 10 • So you don’t have to bother Secure Lift
15. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC • Definitive strategy tackles OWASP Top 10 • So you don’t have to bother Secure Lift “.name *” #> “<script>alert(‘hi’);</script>”
16. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Interactive Lift
17. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Interactive Lift • Great support for Comet and AJAX • Great REST Support • Parallel Rendering of Snippets • Lazy Rendering of Snippets
18. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC 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) }
19. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Interactive Lift • Great support for Comet and AJAX • Great REST Support • Parallel Rendering of Snippets • Lazy Rendering of Snippets
20. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Interactive Lift • Great support for Comet and AJAX • Great REST Support • Parallel Rendering of Snippets • Lazy Rendering of Snippets // HTML <div class="lift:FetchTicker?parallel=true"> Ticker server #1: <span class="ticker">The Ticker</span> </div> // Snippet object FetchTicker { def render = { Thread.sleep(500 millis) // The call ".ticker" #> Thread.currentThread.getName // The result } }
21. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Interactive Lift • Great support for Comet and AJAX • Great REST Support • Parallel Rendering of Snippets • Lazy Rendering of Snippets
22. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Interactive Lift • Great support for Comet and AJAX • Great REST Support • Parallel Rendering of Snippets • Lazy Rendering of Snippets // 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> // Snippet object LongTime { def render = { val start = now Thread.sleep(randomLong(15 seconds)) "#start" #> start.toString & "#end" #> now.toString } }
23. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Designer Friendly Lift
24. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Designer Friendly Lift • Step 1: Get designers to write pure XHTML, HTML5 • Step 2: There isn’t any!
25. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Scalable
26. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC 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
27. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC Summary • Tremendously secure • Highly Interactive Web apps simple • Very friendly to designers • Successful large scale deployments
28. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC 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]
29. Scala: A Quick Primer
30. Copyright © 2011 Lift Web Framework, Worldwide Conferencing, LLC 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
31. Demo: TalkingPuffin Web
32. Questions?