Introduction to YQL - Talk at HackU 2010, IIT Chennai
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Introduction to YQL - Talk at HackU 2010, IIT Chennai
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Introduction to YQL - Talk at HackU 2010, IIT Chennai
- 2. select * from internet; Balaji Narayanan @balajijegan http://balajin.net/blog/
- 4. Application = data manipulation data visualization +
- 5. data
- 7. var map = new YMap(document.getElementById('map'));…var currentGeoPoint = new YGeoPoint( _c.Lat, _c.Lon ); map.addMarker(currentGeoPoint);… … if (flickcurl_prepare(fc, "flickr.photos.geo.correctLocation", parameters, count)) { … } … http://search.yahooapis.com/ImageSearchService/V1/imageSearch?appid=YahooDemo&query=Corvette&results=2 http://weather.yahooapis.com/forecastrss?p=FRXX0076&u=c ? ? ? ?
- 8. What is the problem?
- 9. Thousands of Web Services and sources that provide valuable data
- 10. Data is isolated
- 11. Needs filtering, combining, tweaking, shaping even after it gets to the developer.
- 12. Require Developers to read documentation and form URLs/queries
- 13. YQL select desc show YQL stmt Bindings http://weather.yahooapis.com/forecastrss?p=FRXX0076&u=c … if (flickcurl_prepare(fc, "flickr.photos.geo.correctLocation", parameters, count)) { … } … http://search.yahooapis.com/ImageSearchService/V1/imageSearch?appid=YahooDemo&query=Corvette&results=2 var map = new YMap(document.getElementById('map'));…var currentGeoPoint = new YGeoPoint( _c.Lat, _c.Lon ); map.addMarker(currentGeoPoint);…
- 14. Web Service with a SQL Like Language
- 16. Synonymous with data access
- 17. Expressive enough to get the right data
- 18. Supports query, filter, join and update data across any structured data on the web / web services
- 20. XML or JSON output formats. JSON also allows for a callback parameter to use directly as JSON-P
- 21. Using YQL in your application
- 24. YQL is not limited to Yahoo! data only
- 25. use and set
- 26. Imports the Open Data Table definition
- 27. Makes it available as tableName
- 28. Acts just like other YQL Tables
- 29. Open tables can be collected together into environment files
- 30. set api_key=“value” on myTable
- 31. use ‘http://myweb/mytable.xml’ as tableName ; select * from my tableName
- 36. Insert / Update / Delete
- 37. Can modify the data on the cloud
- 38. Open Data Tables
- 39. Brings the power of table model to new APIs
- 40. Schema brings mapping between YQL and endpoint
- 41. Keys can be marked as required
- 42. YQL compiler validates the existence of required keys
- 43. < execute > element
- 44. Extends open data table with server side JS code
- 45. Move business logic of your application to the cloud
- 47. More easily build web applications
- 48. Data processing done away from the app
- 49. Consistent and familiar syntax for all data access
- 50. Iterative environment for developing the query
- 51. data YQL
Notes de l'éditeur
- We have moved past the web of documents. “Raw Data now”. Tim Berners Lee says “Data drives a huge amount of what happens in our lives because somebody takes that data and does something with it”
- Lets take an example of a developer trying