1.
the Web of Data
Par$c ipa$ng in
Chris$an Heilmann / @codepo8
Senior Developer Evangelist
Yahoo Developer Network
hCp://developer.yahoo.com
hCp://icant.co.uk
hCp://developer‐evangelism.com
Las Vegas, Nevada 17. March 2010

2.
Pencil s down!
hCp://delicious.com/codepo8/mix10

3.
We lcome to the web

4.
al web developer
Profession

5.
he Enter prise crew
Joining t
h5p://www.flickr.com/photos/rspeed/4115466351/

6.
ings went wrong
This is when th

7.
corporate world
Jo ining the

8.
eb 2.0 *h ighfive*
Hey ho, W

9.
ent wron g again.
.. .and it w

10.
A nd now?
The web as the plaUorm
The Mobile Web
Geoloca$on

11.
nges leave a track
Market cha

12.
s$ck to a path...
Peop le like to

13.
iX down a gear...
T ime to sh
h5p://www.flickr.com/photos/neurolysis/3335080917/

14.
on denom inator
Finding t he comm
h5p://www.flickr.com/photos/kentbrew/3764641730/

15.
he world of data
Tapp ing into t
h5p://www.flickr.com/photos/bixentro/2199711056/

16.
Why A PIs work
Applica$on Programming Interface
End Users
Data
Source Developers
Other
Apps

17.
Why A PIs work
Applica$on Programming Interface
End Users
On‐demand delivery of the needed
Data data in the right format.
Source Developers
Access of the data source only when
needed ‐ otherwise caching works.
Other
Apps

18.
APIs m ade easy

19.
APIs m ade easy
select {what} from {where}
where {condi$ons}

20.
YQL examples
select * from flickr.photos.search
where text="donkey" and license=4

21.
YQL examples
select * from craigslist.search where
loca$on="seay" and type="sss" and
query="flower pot"

22.
YQL examples
select * from google.news where
q="healthcare"

23.
YQL examples
select * from query.mul$ where queries in (
'select * from nyt.ar$cle.search where
query="healthcare"',
'select * from microsoX.bing.news where
query="healthcare"',
'select * from google.news where q="healthcare"'
)

24.
YQL examples
select content from html where
url="hCp://www.foxnews.com/" and
xpath="//h2/a"

25.
YQL examples
select * from google.translate where q
in (
select content from html where
url="hCp://www.foxnews.com/" and
xpath="//h2/a"
) and target="fr"

26.
YQL examples
insert into wordpress.post
($tle, descrip$on, blogurl, username,
password)
values ("Test Title", "This is a test
body", "hCp://yqltest.wordpress.com",
"yqltest", "password")

27.
API for APIs
hCp://query.yahooapis.com/v1/public/
yql?
q={query}
&format=xml|json
&callback={callbackfunc$on}

28.
APIs m ade easy
hCp://developer.yahoo.com/yql
No $me wasted reading API docs
Crea$ng complex queries with the
console.
Filter data before use
Fast pipes.
Caching + conver$ng
Server‐side JavaScript

29.
t as a tra ilblazer?
Governmen

30.
PIs out o f thin air
Conjuring A

31.
in a good format.
Get the data

32.
t onto “th e cloud”
The n throw i

33.
a simple format
And pu blish it in

34.
rn it into an API!
Then tu
select * from csv where url="hCp://
spreadsheets.google.com/pub?
key=tpWDkIZMZleQaREf493v1Jw&output=csv" and
columns="Year,City,Sport,Discipline,Country,Event,
Gender,Type" and Year="1924"

35.
et to we b service
S preadshe

36.
Som e more examples

37.
hCp://icant.co.uk/goohoobi/index.php?research

38.
hCp://uk‐house‐prices.com/

39.
hCp://icant.co.uk/geomaker/index.php

40.
In sum mary...
We have the network and we have the technology.
We have people who work effec$vely with the tools
they use.
We have a new genera$on coming who naturally use
the internet and are happy with our web interfaces.
If we use our efforts 50/50 on new and building APIs
and converters to get the data of the old the web will
rock.

41.
Homework
http://github.com/yql/yql-tables

42.
Lea rn more

43.
T HANKS!
Photos: flickr.com,
oddlyspecific.com,
thereifixedit.com,
failblog.org,
epicwinOw.com,
the internets.