London Ajax User GroupJuly 13, 2010

Wednesday, July 14, 2010

Welcome!

• About Us (@dylans)

• Moderator, Dylan Schiemann

• SitePen, Dojo, Comet Daily, cometD, Persevere, mod_pubsub, Hookbox

• Thanks to Skills Matter, JSFiddle, SitePen, Comet Daily, & O'Reilly

Wednesday, July 14, 2010

Format

• Quick Intro

• Panel (Questions at http://bit.ly/aMjyaP)

• Prizes

• Pub

Wednesday, July 14, 2010

Tonight

• 18:00 Meet & Greet

• 18:20 Intro

• 18:30 Panel

• 19:55 Prizes & Future Events

• 20:00 Pub

Wednesday, July 14, 2010

What is Comet?

• Techniques for long-lived connections

• Low-latency data transmission from the server to the browser or client

• Deliver data to the client at any time

• Improve speed and scaling over Ajax

• Develop event-driven web applications

Wednesday, July 14, 2010

What is Comet?

• Servers (long-lived connections)

• Clients (JavaScript and server-side)

• Protocols (Bayeux, CSP, XMPP, etc.)

• Transports (long-polling, HTML5 WebSocket, forever-frame, etc.)

Wednesday, July 14, 2010

Comet Examples

• Quick Example: http://dylan.io/graph.php

• Chat

• Reporting & Monitoring

• Collaboration

• Trading

Wednesday, July 14, 2010

• Alessandro Alinone, Lightstreamer

• Andrew Betts, Meteor Server

• Anthony Catel, APE

• Jerod Venema, WebSync

• Joe Walker, DWR

• Martin Tyler, Liberator

• Simone Bordet, cometD-Jetty

Panelists

Wednesday, July 14, 2010

Comet PanelJuly 13, 2010

Concise questions, witty answers.

Wednesday, July 14, 2010

PrizesWednesday, July 14, 2010

Future Events• August: Server-side JS

• September: Microtoolkits

• October: Ajax Toolkits Panel

• November: Performance

• December: no event

Wednesday, July 14, 2010

Other Events

• Dojo Mobile Weekend (July 31& August 1)

• Dojo Workshop (August 10-12)

• London Ajax August 10

• JSConf.eu, Berlin, late September

• JAOO, early October, Denmark

Wednesday, July 14, 2010

Resources• APE http://www.ape-project.org/

• Caplin Liberator: http://www.caplin.com/caplin_liberator.php

• cometD-Jetty http://cometd.com/

• DWR http://directwebremoting.org/

• ErlyComet http://code.google.com/p/erlycomet/

• Hookbox http://hookbox.org/

• Lightstreamer http://lightstreamer.com/

• Meteor http://meteorserver.org/

• Nirvana http://www.my-channels.com/products/nirvana.html

• Node.js http://nodejs.org/

• Orbited http://orbited.org

• Persevere http://www.persvr.org/

• Tornado http://github.com/facebook/tornado/

• WebSync http://frozenmountain.com/

Wednesday, July 14, 2010

Resources

• http://cometdaily.com/ @cometdaily

• http://www.meetup.com/londonajax/calendar/13682478/

• http://skillsmatter.com/

Wednesday, July 14, 2010

Thanks!to the panelists

Wednesday, July 14, 2010