ado.net data services: what’s new with the restful data services framework

ADO.NET Data Services: What’s new with the RESTful data services frameworkPablo CastroSoftware ArchitectMicrosoft Corporation

FT12

OData

agenda> problem space> restful interfaces> a new ecosystem> new features

why data services?

break data silos

== data sharing & integration

fileslibrariesservices

fileslibraries

producers | protocol | consumers

REST

| !protocol| !standard| !format

REST

REST == architectural style

| decoupling| scalability| layering

REST

resources

addressability

uniform interface

natural fit for data services

business logic

store

service interface

data service != gateway to database

open data protocol

“OData”

RESTful

http

poke-able (?)

AtomPub

+ xml & json

+ addressing scheme

+ metadata

implementations

servers

.netsharepoint on premises, onlinereporting servicesazure table storagecodename “dallas”microsoft media roomopen government data initiative…

low barrier of entry

clients

got an HTTP stack?

excel + powerpivotvisual studio.netsilverlightajaxphpjava

3rd parties

websphere extreme scaledb4otelerik open accesslinqpad…

new protocol & server stuff

beyond structured: blobs

| projections| row count| inline count

+query options

feed customization

server driven paging

Data Source Options

Data Services Runtime

HTTP traffic

Entity Framework

ProviderReflection Provider

Custom Provider

.NET Classes[+ LINQ provider]

Entity Framework

Database

Data Source

Data Source

Custom providers:- IDataServiceMetadataProvider- IDataServiceQueryProvider

Updates:- IDataServiceUpdateProvider

Special features:- IDataServiceStreamProvider- IDataServicePagingProvider

new client stuff

visualization

piece-of-cake data binding

DataServiceCollection<T>

more LINQ

cross-domain access

keep up with protocol

| visual studio 2010| 3.5 SP1 update

| protocol everywhere| windows live| deep wcf integration

roadmap

call to action

resources> OData web site

> http://odata.org > email

> pablo.castro@microsoft.com> blog

> http://blogs.msdn.com/pablo> team blog

> http://blogs.msdn.com/astoriateam> msdn “data” center

> http://msdn.microsoft.com/data> Visualizer

> In Visual Studio 2010 Tools Extension Manager Search “open data protocol”

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