The Real-Time web Elise Huard

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

Hype

“ Pushbutton web ” Anil Dash

“ Webhooks ” Jeff Lindsay

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

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

“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)

Notification

Data syncing

Chaining

Modifications

Plugins

(Jeff Lindsay)

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

examples :

Pubsub (hubbub)

Twitter Firehose

Ruby: Watercoolr

(test with Postbin)

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

Twitter to Facebook

Google Wave

Google Docs

(also: browser push

ex. Juggernaut)

Chaining like Unix pipes Server1 Server2 Server3 event processing

like Unix pipes

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

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 ?

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/