Building Adaptive Payment Systems with YQL

Constructing "SELECT * FROM Internet" Payment Tools Using the Yahoo! Query Language

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1. Delivering Upsell Content from YQL Data Sources

2. Driving Traffic Back to Your Services with Open Data Tables

3. Mashing up Multiple Data Sources with Server-Side JavaScript

What We’ll Learn

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Making Queries SELECT * FROM Internet

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YQL Test Console

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

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SELECT myColumn, myTitle FROM myTable(0, 50) WHERE myColumn = 'value' AND myTitle = 'title'

LIMIT 3 OFFSET 10 |

sort(field='myColumn') | reverse()

Running Queries - SELECT Query Structure

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Modify Data on the InternetCreate Tweets, Add Blog Entries, Update Databases

Current Tables Using I/U/DTwitter Status, bit.ly URL Shortner, Yahoo! Profile Status / Update Stream, Amazon SimpleDB

Running Queries - INSERT / UPDATE / DELETE

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SELECT * FROM flickr.photos.search WHERE (lat, lon) IN (SELECT centroid.latitude, centroid.longitude FROM geo.places WHERE text="SFO")

Running Queries – Sub-selects with the IN clause

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Running Queries – Available Tables

YQL Command: SHOW Tables

Number of Standard Tables: 169Number of Community Tables: 771Total Number of Tables: 940

Contribute Tables to: http://www.github.com/yql/yql-tables/

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Running Queries – Table Syntax

YQL Command: DESC tablename

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http://query.yahooapis.com/v1/yql?[params]http://query.yahooapis.com/v1/public/yql?[params]

Params• q=[QUERY]• format=[XML / JSON]• diagnostics=[true / false]• debug=[true / false]• callback=[function name]

Running Queries – URL Format

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http://query.yahooapis.com/v1/yql?[params]http://query.yahooapis.com/v1/public/yql?[params] Params• q=[QUERY]• format=[XML / JSON / JSONP / JSONP-X]• diagnostics=[true / false]• debug=[true / false] • callback=[function name]

Running Queries – URL Format

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Driving Traffic Back to your Services

YQL Open Data Tables Wrap Your Own API or Data Source

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<?xml version="1.0" encoding="UTF-8"?><table xmlns="http://query.yahooapis.com/v1/schema/table.xsd">

<meta></meta> <bindings></bindings></table>

Open Data Tables – XML File Syntax

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<?xml version="1.0" encoding="UTF-8"?><table xmlns="http://query.yahooapis.com/v1/schema/table.xsd">

<meta></meta> <bindings></bindings></table>

Open Data Tables – XML File Syntax

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<?xml version="1.0" encoding="UTF-8"?><table xmlns="http://query.yahooapis.com/v1/schema/table.xsd">

<meta> <author>Jonathan LeBlanc</author> <description>My Table</description> <documentationURL>www.site.com</documentationURL> <sampleQuery>SELECT * FROM {table} </sampleQuery> </meta> <bindings></bindings></table>

Open Data Tables – XML File Syntax

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<?xml version="1.0" encoding="UTF-8"?><table xmlns="http://query.yahooapis.com/v1/schema/table.xsd">

<meta></meta> <bindings></bindings></table>

Open Data Tables – XML File Syntax

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<table xmlns="http://query.yahooapis.com/v1/schema/table.xsd">

<meta></meta> <bindings> <select itemPath="" produces="XML" > <urls> <url env="all”>http://www.site.com/{user}</url> </urls> <inputs> <key id="user" type="xs:string" paramType="path" required="true" /> </inputs> </select> </bindings></table>

Open Data Tables – XML File Syntax

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The USE clause

USE "http://alavilli.com/yql/paypal_txn_table.xml" AS paypal_txn_table;

SELECT * FROM paypal_txn_table WHERE StartDate="2010-06-12T00:00:00.000Z" AND APIUsername="xxx" AND APIPassword="xxx" AND Signature="xxx"

Open Data Tables – Invoking a Table Definition

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New PayPal Tables!

Available At: http://github.com/yql/yql-tablesTransaction Search: paypal/paypal.transaction.xml

Transaction Details: paypal/paypal.transactions.details

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Mapping Social Data to Products

Location

Interests

Profession

Friends

Birthday / Anniversary

Regional Products

Product Suggestions

Specialty Merchandise

Suggest to Friends

Seasonal / Targeted Products

YQL Execute Extending Open Data Tables

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Augment dataCollect geographic data based on a free-form text location

Create APIs from web pagesBuild your very own ScrAPI

Data TransformationsConvert the results from xml to Google's kml format

Move business logic of your application to the cloud

YQL Execute – XML File Syntax

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<?xml version="1.0" encoding="UTF-8"?><table xmlns="http://query.yahooapis.com/v1/schema/table.xsd">

<meta></meta> <bindings> <select itemPath="" produces="XML" > <urls></urls> <inputs></inputs> </select> </bindings></table>

YQL Execute – XML File Syntax

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<?xml version="1.0" encoding="UTF-8"?><table xmlns="http://query.yahooapis.com/v1/schema/table.xsd">

<meta></meta> <bindings> <select itemPath="" produces="XML" > <urls></urls> <inputs></inputs> <execute></execute> </select> </bindings></table>

YQL Execute – XML File Syntax

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<execute> <![CDATA[ var arrQueries = inputs['query'].split('|'); var elQueries = <queries/>; . . . ]]></execute>

YQL Execute – XML File Syntax

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Global Disaster Alert and Coordination System Table

Available At: http://github.com/yql/yql-tablesUnder gdacs/gdacs.current.xml

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Build adaptive applications faster (and that run faster)

Conclusion

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YQL Documentationhttp://developer.yahoo.com/yql

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

YQL Github Account (Contribute Tables)http://github.com/yql/yql-tables

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Thank YouQuestions?

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