Lessons learned from building the Yahoo! Developer Network. An overview of what YDN does, did and learned along the way.

1. Lessons learned - Building the Yahoo! Developer Network Dan Theurer Developer Relations Conference 2009

4. 10 min YDN Update

9. YOS :: Technology Stack

11. <query yahoo:count=&quot;46&quot; yahoo:created=&quot;2009-02-20T08:16:03Z&quot; yahoo:lang=&quot;en-US&quot; yahoo:updated=&quot;2009-02-20T08:16:03Z&quot; yahoo:uri=&quot;http://query.yahooapis.com/v1/yql?q=show+tables&quot;> <results> <table>atom</table> <table>csv</table> <table>feed</table> <table>flickr.photos.exif</table> <table>flickr.photos.info</table> <table>flickr.photos.interestingness</table> <table>flickr.photos.recent</table> <table>flickr.photos.search</table> <table>flickr.photos.sizes</table> <table>flickr.places</table> <table>flickr.places.info</table> <table>geo.places</table> <table>geo.places.ancestors</table> … </results> </query YQL :: SHOW tables

12. <query yahoo:count=&quot;1&quot; yahoo:created=&quot;2009-02-21T01:41:28Z&quot; yahoo:lang=&quot;en-US&quot; yahoo:updated=&quot;2009-02-21T01:41:28Z&quot; yahoo:uri=&quot;http://query.yahooapis.com/v1/yql?q=desc+flickr.photos.search&quot;> <results> <table name=&quot;flickr.photos.search”> <request> <select usesRemoteLimit=&quot;true”> <key name=&quot;machine_tags&quot; type=&quot;xs:string&quot;/> <key name=&quot;radius_units&quot; type=&quot;xs:string&quot;/> <key name=&quot;safe_search&quot; type=&quot;xs:string&quot;/> <key name=&quot;privacy_filter&quot; type=&quot;xs:string&quot;/> <key name=&quot;contacts&quot; type=&quot;xs:string&quot;/> <key name=&quot;tags&quot; type=&quot;xs:string&quot;/> <key name=&quot;place_id&quot; type=&quot;xs:string&quot;/> <key name=&quot;text&quot; type=&quot;xs:string&quot;/> … </select> </request> </table> </results> </query> YQL :: DESC flickr.photos.search

13. <query yahoo:count=&quot;6&quot; yahoo:created=&quot;2009-02-21T02:09:55Z&quot; yahoo:lang=&quot;en-US&quot; yahoo:updated=&quot;2009-02-21T02:09:55Z&quot; yahoo:uri=&quot;http://query.yahooapis.com/v1/yql?q=select+*+from+flickr.photos.search+where+user_id%3D%2228569531%40N00%22+and+text%3D%22jump%22+limit+6&quot;> <results> <photo farm=&quot;4&quot; id=&quot;3154107557&quot; isfamily=&quot;0&quot; isfriend=&quot;0&quot; ispublic=&quot;1&quot; owner=&quot;28569531@N00&quot; secret=&quot;6f22e677c3&quot; server=&quot;3101&quot; title=&quot;Jump - Fremont Older&quot;/> <photo farm=&quot;4&quot; id=&quot;2563123589&quot; isfamily=&quot;0&quot; isfriend=&quot;0&quot; ispublic=&quot;1&quot; owner=&quot;28569531@N00&quot; secret=&quot;7811c91934&quot; server=&quot;3087&quot; title=&quot;Jump&quot;/> <photo farm=&quot;3&quot; id=&quot;2159479534&quot; isfamily=&quot;0&quot; isfriend=&quot;0&quot; ispublic=&quot;1&quot; owner=&quot;28569531@N00&quot; secret=&quot;785e671cd4&quot; server=&quot;2080&quot; title=&quot;Hollywood - Jump - Dan&quot;/> <photo farm=&quot;3&quot; id=&quot;2066431773&quot; isfamily=&quot;0&quot; isfriend=&quot;0&quot; ispublic=&quot;1&quot; owner=&quot;28569531@N00&quot; secret=&quot;c61604d090&quot; server=&quot;2208&quot; title=&quot;JUMP!&quot;/> <photo farm=&quot;2&quot; id=&quot;1304849768&quot; isfamily=&quot;0&quot; isfriend=&quot;0&quot; ispublic=&quot;1&quot; owner=&quot;28569531@N00&quot; secret=&quot;7271c8f9b3&quot; server=&quot;1233&quot; title=&quot;Testing the suit&quot;/> <photo farm=&quot;2&quot; id=&quot;1178261094&quot; isfamily=&quot;0&quot; isfriend=&quot;0&quot; ispublic=&quot;1&quot; owner=&quot;28569531@N00&quot; secret=&quot;3dac28807f&quot; server=&quot;1241&quot; title=&quot;Jump, jump!&quot;/> </results> </query> YQL :: SELECT * FROM flickr.photos.search WHERE user_id=&quot;28569531@N00” AND text=&quot;jump” LIMIT 6

15. <?php // Include the PHP SDK for YSP library. require_once(&quot;yosdk/lib/Yahoo.inc&quot;); // Define values for keys required for authorization define(CONSUMER_KEY,&quot;dj0yJmk9ZDNwaXdQSEZ…j&quot;); define(CONSUMER_SECRET,&quot;37fe717538e0598e6c70d4262…&quot;); // The YahooApplication class is used for two-legged authorization, which doesn't need user authorization. $two_legged_app = new YahooApplication(CONSUMER_KEY,CONSUMER_SECRET); // Create queries for Flickr $yql_request = 'select * from flickr.photos.search where user_id=&quot;28569531@N00&quot; and text=&quot;jump&quot; limit 6'; // Make the request $results = $two_legged_app->query($yql_request); $photos = $results->query->results->photo; // Build the output HTML foreach($photos as $k=>$v) { $imgs .= '<img src=&quot;http://farm' . $v->farm . '.static.flickr.com/' . $v->server . '/' . $v->id . '_' . $v->secret . '_m.jpg&quot; alt=&quot;Image' . $k . '&quot;/>' ; } echo &quot;<html><body>&quot; . $imgs . '</body></html>’; ?> YQL :: 2-legged OAuth – PHP SDK

16. YQL :: 2-legged OAuth – Result

17. <?php // Include the PHP SDK for YSP library. require_once(&quot;yosdk/lib/Yahoo.inc&quot;); // Define values for keys required for authorization define(CONSUMER_KEY,&quot;dj0yJmk9ZDNwaXd…j&quot;); define(CONSUMER_SECRET,&quot;37fe717538e0598e6…&quot;); $session=YahooSession::requireSession(CONSUMER_KEY,CONSUMER_SECRET); // Define YQL queries for the Social Directory APIs $query = &quot;SELECT * FROM social.connections WHERE owner_guid=me LIMIT 2&quot;; $result = $session->query($query); // Build the output HTML echo(&quot;<html><body><pre><h2>Connection Data</h2>&quot; ); var_dump($result) ; echo(&quot;</pre></body></html>&quot;); ?> YQL :: 3-legged OAuth – PHP SDK

18. YQL :: 3-legged OAuth – Result

19. What history tells us

25. Key learnings

29. Learnings :: Content Unfiltered RSS Feeds Ruby Language Center SearchMonkey Security Best Practices Shopping API Silverlight Language Center Site Explorer API Stencils for Designers Traffic API Travel API Upcoming API Utilities API Video Search API Weather API Web Search API Widgets Yahoo! User Interface Library YAP / YOS YDN Theater Yslow Zimbra … Hadoop HotJobs API Image Search API Java Language Center JavaScript Language Center l10n & i18n Tools Live Video Broadcast Local Search API Geocoder API Traffic API Mail API Media Player Plugin Message Boards MyBlogLog API MyWeb API .NET Language Center News Search API oAuth OpenID PHP Language Center Pipes Python Language Center Address Book API Ajax Maps Answers API ASTRA Library Audio Search API Autos Custom API BBAuth Blog Blueprint BOSS CodeSamples ColdFusion Language Center Content Analysis API del.icio.us API Design Pattern Library Exceptional Performance Finance API Fire Eagle™ API Flash Language Center Flash Maps Flickr API GeoPlanet™ API

30. Learnings :: Content Unfiltered cont.

31. Learnings :: Content Structured

32. Learnings :: Content Visually Organized

37. Four Pillars

38. The four critical parts of a Developer Network offer Data

39. The four critical parts of a Developer Network offer Data Tools

40. The four critical parts of a Developer Network offer Data HowTos Tools

41. The four critical parts of a Developer Network offer Data HowTos Support Communication Tools

42. Key Take Aways

44. Thank You Questions? [email_address]