into th e web
o f data
Christian Heilmann – Webmontag, Frankfurt/Main – August 2009

Developing the web vs.
developing for the web.

Decentralised Data

http://www.amazon.de/Web-Development-
Solutions-Libraries-Services/dp/1590598067

CMS

CMS

CMS
Tags, Comments, Connections, Embeds

http://developer-evangelism.com/web.php

APIs

APIs
http://search.twitter.com/trends/current.json

API Issues

No need for
rockstars

YQL http://developer.yahoo.com/yql/console/

YQL http://developer.yahoo.com/yql/console/
select {what} from {where}
where {conditions}

For example: Frankfurt

http://isithackday.com/hacks/frankfurt

select * from html
where
url="http://faz.de" and
xpath="//h2 "

select * from
google.translate where q in (
select a from html where
url="http://faz.de"
and xpath="//h2"
) and target="en"

select title from
twitter.user.timeline where
title like "%http%" and
id="codepo8" or id="ydn"

Flexibility
๏ mix and match APIs
๏ filter results
๏ simplify authentication
๏ use in console or from
code
๏ minimal research of
documentation
๏ caching of results
๏ proxied on Yahoos
servers

Join the
web of
data!
http://developer.yahoo.com/yql/guide/yql-opentables-chapter.html

Got you excited? Go for it!

C h e e r s !
Christian Heilmann
http://wait-till-i.com
http://developer-evangelism.com
http://twitter.com/codepo8