yahoo! app. platform : university of michigan hack u '09

Building Applications on Yahoo!

Photo credit: jurvetson (http://ow.ly/1046)

University of Michigan Hack U ’09

Erik Eldridge

Yahoo! Developer Network

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Why is Yahoo! opening up?

• A history of supporting open technology– Apache, MySQL, PHP, JavaScript,

BSD/Linux, to name a few

• A history of hacking

• Yahoo! wants to share its audience

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Before I continue…

• These slides are online here:slideshare.net/erikeldridge

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Yahoo!’s Open Stack

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What is the Yahoo! Application Platform?

• It’s a way to run apps on Yahoo!

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3 views of YAP: My Y! screenshot

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3 views of YAP: canvas screenshot

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3 views of YAP: y! metro

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Yahoo! Application Platform (YAP)

• Optimized for speed and security (YML, Caja)• Uses raw Javascript, CSS, and HTML, and

Yahoo! Markup Language (YML)• Supports OpenSocial JavaScript API

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How do I use it?

YDN Open App

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Your server

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Your code

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Your app on Yahoo!

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Example: OpenSocial Activities

<script>

var params = {};

params[opensocial.Activity.Field.TITLE] = 'title';

params[opensocial.Activity.Field.BODY] = 'body';

var activity = opensocial.newActivity(params);

opensocial.requestCreateActivity(

activity,

opensocial.CreateActivityPriority.LOW,

function(){});

</script>

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Example: Screenshot of results

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What did we do?

<script>

var params = {};

params[opensocial.Activity.Field.TITLE] = 'title';

params[opensocial.Activity.Field.BODY] = 'body';

var activity = opensocial.newActivity(params);

opensocial.requestCreateActivity(

activity,

opensocial.CreateActivityPriority.LOW,

function(){});

</script>

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App Updates

Updates from YAP are distributed across Yahoo!• Properties, e.g., Mail, Profiles, Buzz, etc.• Clients, e.g., Messenger, Toolbar• Externally through Updates API

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What does YAP do for me?

• Hundreds of millions of Yahoo! users

• Instant publication

• Secure, Standard JavaScript, HTML, CSS

• OpenSocial JS API

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Resources

• developer.yahoo.com– /dashboard– /yap– /yap/yml– /social– /forums

• Caja project• iframe security

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Thank you!

• If you have questions later:– Twitter/IRC: erikeldridge