Ado.Net Data Services (Astoria)

ADO.Net Data Services Astoria Enabling your data for Web consumption Igor Moochnick IgorShare Consulting [email_address] Blog: www.igorshare.com/blog

Data on the Web HTML + Javascript Data (XML,JSON,…) DLL + XAML Data (XML,JSON,…) Data (XML,JSON,…) Mashup UI Data Feeds AJAX Applications Silverlight Applications Online Services Mashups

Time to think “SERVICES” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Mobile/ Desktop OLAP FILE XML RDBMS Query Analysis Reporting Integration Sync Search Server Data Services

Data Services For RIAs Presentation & Behavior Data (XML, etc) Data Presentation, Behavior & Data

Presentation & Behavior Data (XML, etc) Data Presentation, Behavior Data Services For RIAs Create an on- premises data service 1 Consume the data service from RIA 3 ,[object Object],[object Object],[object Object],[object Object],2

Presentation & Behavior (HTML & JS) Data (XML, etc) Data Data Services For RIAs

Presentation & Behavior (HTML & JS) Data (XML, etc) Data Store archived records in the cloud storage Data Services For RIAs

RESTful Web Services? Resources Res 1 Res 2 Res 3 Res 4 HTTP Request URL VERB Payload HTTP Response Status GET POST PUT DELETE XML JSON Payload XML JSON

.NET vs. REST ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Creating Data Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Data Access Layer Entity Framework Custom LINQ provider Relational database Other sources Service Runtime Hosting/HTTP listener HTTP IQueryable [+ IUpdatable]

Entity Framework ? SQL Provider Oracle Provider ... Entity Provider Conceptual Model Store Model Map ADO.NET API ORM API

ADO.Net Data Services Alignment Data Service Support Client Support ADO.Net Data Services (Astoria) SQL Data Service Evolves to include flex entities Evolves to include schematized data Schematized Data Flex Entities

Exploring Data Services HTTP (AtomPub) Clients (Tools, Libraries, etc) SQL Data Services ADO.NET Data Services Framework SQL Server (On premises data service) (Cloud data service)

Operations Semantics ,[object Object],[object Object],[object Object],[object Object]

Tip : force IE to show the feed XML ,[object Object],[object Object],[object Object],Demo

Data? What Kind of Data? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo

ADO.NET Data Services payload ,[object Object],[object Object],[object Object],[object Object],[object Object]

Tools to explore the services ,[object Object],[object Object],[object Object],[object Object],[object Object],Demo

URL Conventions ,[object Object],Presentation options Demo Entity-set /Students Single entity /Students(1) Member access /Students(1)/Name Link traversal /Students(1)/ClassRegistrations Deep access /Students(1)/ClassRegistrations(2)/Grade Raw value access /Students(1)/Photo/$value Sorting /Students?$orderby=Name desc Filtering /Classes?$filter=substringof(Name, ‘Math’) Paging /Students?$top=10&$skip=30 Inline expansion /Students?$expand=ClassRegistrations

Operators ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Query operators ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo

Addressing Pseudo-Members ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo

Query Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo

"Traditional" Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Modern Data-Driven Web Apps ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Building Clients ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo

Creating new entity ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo

Debugging tricks ,[object Object],[object Object],[object Object],Demo

Interception & Operations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo

Refining and Securing Services Demo

Astoria-offline ,[object Object],[object Object],[object Object],Demo

Scalable, Available Data Services Storage and Database Services ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reference Data ETL Data Mining

Data SYNC ,[object Object],[object Object],[object Object],[object Object],[object Object]

Enterprise Data Hub Sharing data through Data Sync ,[object Object],[object Object],[object Object],[object Object],Demo Sync Service iPhone Occasionally Connected Data Sharing

Advanced Topics ,[object Object],[object Object],[object Object]

Batching of Operations “ INSERT” Customer 1 POST Order 1 POST Order 2 POST Order N POST

Batching of Operations “ INSERT” Customer 1 Order 1 Order 2 Order N POST

Batching in code ,[object Object],[object Object],Demo

Batching of Operations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Managing Concurrency GET GET Customer: ALFKI Country: Spain Customer: ALFKI Country: Spain

Managing Concurrency PUT Customer: ALFKI Country: UK PUT Customer: ALFKI Country: Germany

Managing Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo

Resources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Insert Entity using .NET ,[object Object],Message message = new Message { PartitionKey = "Channel9" , // ChannelName RowKey = DateTime .UtcNow.ToString(), // PostedDate Text = "Hello PDC" , Rating = 3 }; serviceUri = new Uri ( "http://<account>.table.core.windows.net" ); var context = new DataServiceContext (serviceUri); context.AddObject( "Messages" , message); DataServiceContext response = context.SaveChanges();

[object Object],Insert Entity using REST POST http://< Account> .table.core.windows.net/ Messages ... <!– Atom envelope --> < m:properties > < d:PartitionKey > Channel9 </ d:PartitionKey >  < d:RowKey > Oct-29 </ d:RowKey >  < d:Text > Hello PDC </ d:Text > < d:Rating > 3 </ d:Rating > </ m:properties >

Query Entities serviceUri = new Uri ( "http://<account>.table.core.windows.net" ); DataServiceContext context = new DataServiceContext (serviceUri); var messages = from message in context.CreateQuery< Message >( "Messages" ) where message.Rating == 3 select message; foreach ( Message message in messages) { } GET http:// <serviceUri> /Messages?$filter= Rating eq 3

Update a property in an entity ,[object Object],Message message = ( from message in context.CreateQuery< Message >( "Messages" ) where message.PartitionKey == "Channel9" && message.RowKey == "Oct-29" select message).FirstOrDefault(); message.Text = "Hi there" ; context.UpdateObject(message); DataServiceResponse response = context.SaveChanges(); PUT http:// <serviceUri> /Messages(‘Channel9’, ‘ Oct-29’) < m:properties > < d:Text > Hi there </ d:Text >  </ m:properties >

[object Object],Delete an Entity // Get the Message object for ( "Channel9" , "Oct-29" ) context.DeleteObject(message); DataServiceResponse response = context.SaveChanges(); DELETE http://.../Messages(‘Channel9’, ‘ Oct-29’)

[object Object],Getting the Top N entities serviceUri = new Uri ( "http://<account>.table.core.windows.net" ); DataServiceContext context = new DataServiceContext (serviceUri); var allMessages = context.CreateQuery< Message >( "Messages" ); foreach ( Message message in allMessages.Take(100)) { Console .WriteLine(message.Name); } GET http://< serviceUri> /Messages?$top=100

Ado.Net Data Services (Astoria)

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