1. OData everywhere Matt Milner Pluralsight

2. Overview What and why of OData OData client ecosystem

3. OData We need another data access technology? ODBCOLE DB ADO RDO ADO.NET Linq to SQL Entity Framework DataSet Which of these is cross platform?

4. Open Data Protocol Open : HTTP, ATOMPub, JSON Data : Querying & updating Protocol : Data format, uri constraints, metadata

5. Protocol GET http://localhost/TaskService.svc/Tasks Accept: application/json GET http://localhost/TaskService.svc/Tasks Accept: application/json HTTP/1.1 200 OK DataServiceVersion: 1.0; Content-Length: 876 Content-Type: application/json;charset=utf-8 {"d" : [ { "__metadata": { "uri": "http://localhost/TaskService.svc/Tasks(2)", "type": "TaskDBModel.Task" }, "TaskID": 2, "AssignedTo": "3", "DueDate": "\/Date(1298505600000)\/", "Description": "hire HR manager", "Priority": 1, "PercentComplete": 25 } ] } HTTP/1.1 200 OK DataServiceVersion: 1.0; Content-Length: 876 Content-Type: application/json;charset=utf-8 {"d" : [ { "__metadata": { "uri": "http://localhost/TaskService.svc/Tasks(2)", "type": "TaskDBModel.Task" }, "TaskID": 2, "AssignedTo": "3", "DueDate": "\/Date(1298505600000)\/", "Description": "hire HR manager", "Priority": 1, "PercentComplete": 25 } ] }

6. POST http://localhost/TaskService.svc/Tasks HTTP/1.1 Content-Type: application/json Accept: application/json Content-Length: 153 {"Description":“Fire Sally","Priority":1,"PercentComplete":25, "DueDate":"\/Date(1298505600000)\/","AssignedTo":"3"} POST http://localhost/TaskService.svc/Tasks HTTP/1.1 Content-Type: application/json Accept: application/json Content-Length: 153 {"Description":“Fire Sally","Priority":1,"PercentComplete":25, "DueDate":"\/Date(1298505600000)\/","AssignedTo":"3"} Protocol HTTP/1.1 201 Created DataServiceVersion: 1.0; Content-Length: 297 Location: http://localhost/TaskService.svc/Tasks(5) Content-Type: application/json;charset=utf-8 { "d" : { "__metadata": { "uri": "http://localhost/TaskService.svc/Tasks(5)", "type": "TaskDBModel.Task" }, "TaskID": 5, "AssignedTo": "3", "DueDate": "\/Date(1298505600000)\/", "Description": “Fire Sally", "Priority": 1, "PercentComplete": 25}} HTTP/1.1 201 Created DataServiceVersion: 1.0; Content-Length: 297 Location: http://localhost/TaskService.svc/Tasks(5) Content-Type: application/json;charset=utf-8 { "d" : { "__metadata": { "uri": "http://localhost/TaskService.svc/Tasks(5)", "type": "TaskDBModel.Task" }, "TaskID": 5, "AssignedTo": "3", "DueDate": "\/Date(1298505600000)\/", "Description": “Fire Sally", "Priority": 1, "PercentComplete": 25}}

7. System query options OptionDescriptionExample $filterFilters the result set/Movies?$filter=Title eq ‘Star Wars’ $orderbySort the target resources/Movies?$orderby=Title desc $topReturn only the top n resources/Movies?$top=10 /Movies?$orderby=Title&$top=5 $skipSkip the first n resources/Movies?$skip=100&$top=10 $selectCreate a projection/Movies(1)/’Reviews?$select=rating,review er $inlinecountIncludes the total count/Movies?$top=100&$inlinecount=allpages $valueRetrieve a value without any surrounding metadata /Movies(2)/Title/$value $expandEager loading of specified elements /Movies(1)?$expand=Reviews

8. OData producers Producers SharePoint 2010 SQL Azure Azure Table Storage IBM WebSphere Data Market... Services Ebay Facebook Netflix Pluralsight

9. OData clients Windows.NETSilverlightPowerPivot Browsers AtomJavaScriptjQuery Open Source PHPRubyJava Mobile Win Phone 7 IPhone / IPad (objective C) Android

10. Windows /.NET  Add Service Reference  Managed data context  Full batching support  Databinding

11. Silverlight  DataServiceCollection – async load  Out of browser support  Browser or custom credentials (OOB)

12. PowerPivot  Analytics  Charting  Relationships

13. Browsers  JSON / ATOM  JavaScript library

14. Open source  Ruby = gem install ruby_odata  Java = RestLet extension  PHP = PHPDataSvcUtil

15. Phones  Native libraries for Mac and WP7  Restlet / java support on Android

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