The real-time web

The Real-Time web Elise Huard

Hype
“ Pushbutton web ” Anil Dash
“ Webhooks ” Jeff Lindsay

Relax
Nothing new !
callbacks over HTTP
(+ajax+push)

Callbacks ?
“A function which should be called when something happens. “
“a callback is executable code that is passed as an argument to other code. It allows a lower-level software layer to call a subroutine (or function) defined in a higher-level layer.” - Wikipedia
ex. before_save

Notification
Data syncing
Chaining
Modifications
Plugins
(Jeff Lindsay)

Notifications
examples :
Pubsub (hubbub)
Twitter Firehose
Ruby: Watercoolr
(test with Postbin)

Data sync
Twitter to Facebook
Google Wave
Google Docs
(also: browser push
ex. Juggernaut)

Chaining
like Unix pipes
Server1 Server2 Server3 event processing

Modifications/Plugins
Services on the web:
Allow the users to modify behaviour for their own use
allow external developers to extend functionality
'Programmability' of the web

Things to think about
Is HTTP really the best protocol for such things (TCP sessions) ? XMPP, AMQP
How will servers handle a high load of such processes ?
In which situations is this a real advantage ?

http://www.igvita.com/2009/06/29/http-pubsub-webhooks-pubsubhubbub/ http://www.slideshare.net/progrium/using-web-hooks http://www.postbin.org http://watercoolr.nuklei.com/ http://juggernaut.rubyforge.org/ http://www.pachube.com/

The real-time web

by ehuard on Oct 16, 2009

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The real-time web — Presentation Transcript