Girl Geek Dinner YQL

Pratibha Gannavarapu & Allan Shone

Yahoo!717th June 2009

Pratibha GannavarapuTechnical yahoo

Who Am I?

The best way to mashup data from the web!

What am I doing here tonight?

There is abundant data on the web!

• Web pages

• Web services

• RSS

• CSV

Good Thing About Web!

Problem!

• Locating the right URLs for accessing them 

• Going through API documentation

Need easier way to access this data!

• Pipes

• YQL

Solution!

• Pipes is an online service that lets you

remix popular feed types and create data

mashups using a visual editor

• There are several modules to fetch the data

and other mechanisms such as sort,

filtering etc.

• Once a pipe is built, it can be accessed and

build your app based on it.

Pipes!

• RESTful webservice call

• Select {what} from {service} where {condition}

• Returns XML or JSON

What is YQL?

 select * from flickr.photos.search where text="Geek Girls Dinner Sydney Yahoo" limit 3  

An Example

• REST query format

http://query.yahooapis.com/v1/public/yql?

q={QUERY}&format={FORMAT}

• Format xml or json

Using from within a script!

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

Lets try our Flickr example here

Console!

show tables;

What data is available?

• No

• Open Tables

- Create and use your own table

definitions

- Enables YQL to bind to any data

source through the SQL-like syntax

and fetch data.

Only Y! data??

XML file with the following info:

• Authentication and Security Options

• Sample Query

• YQL Data Structure

• Pagination Options

Defining Open Data Tables

http://www.datatables.org/flickr/flickr.auth.frob.xml

Example definition

•Using IN

select * from search.termextract where

context in (

select description from rss where

url='http://stills360.com/blog/feed/' limit 3 )

Console

More Examples

• select * from htmlwhere url=‘http://www.news.com.au/'and xpath='//h3/a’ limit 5

Console

• RSS Feeds select * from rss where url=“http://stills360.com/blog/feed”

More examples

http://stills360.com/demos/yql.html

An example!

• Makes data accessing more easier

• More easier for developers

• Access Y! data

• Add your own open tables

• select * from {atom, csv, html, rss, feed,

table}

• In short it is select * from Internet

Summary

http://developer.yahoo.com/yqlhttp://github.com/http://www.wait-till-i.com/ - Chris Heilmann

Thank you!

Resources