.NET Framework V3.5+ & RESTful web services Mike Taulty Developer & Platform Group Microsoft Ltd [email_address] http://www.mtaulty.com

Agenda Windows Communication Foundation V3.5 Released Visual Studio 2008/.NET Framework V3.5 ADO.NET Data Services Preview – framework and tooling Latest is the December CTP, ships H1 2008 Has strong links to ADO.NET Entity Framework Both are part of ASP.NET 3.5 Extensions Preview

Windows Communication Foundation V3.5

Released

Visual Studio 2008/.NET Framework V3.5

ADO.NET Data Services

Preview – framework and tooling

Latest is the December CTP, ships H1 2008

Has strong links to ADO.NET Entity Framework

Both are part of ASP.NET 3.5 Extensions Preview

RESTful?

RESTful?

RESTful? 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

RESTful? RE presentational S tate T ransfer In a nutshell; Server-side resources identified by a URI Access is over HTTP, verb tied to action GET to read the value of a resource POST to create a new resource* PUT to update an existing resource* DELETE to delete a resource Returned data is “plain” – XML or JSON

RE presentational S tate T ransfer

In a nutshell;

Server-side resources identified by a URI

Access is over HTTP, verb tied to action

GET to read the value of a resource

POST to create a new resource*

PUT to update an existing resource*

DELETE to delete a resource

Returned data is “plain” – XML or JSON

RESTful?

WCF V3.5

WCF V3.5

WCF V3.5 and REST New capabilities around RESTful services webHttpBinding HTTP(S) protocol (not new in itself) URI based dispatch and parameter passing “ Plain” XML/JSON serialisation New RSS/Atom publication capabilities

New capabilities around RESTful services

webHttpBinding

HTTP(S) protocol (not new in itself)

URI based dispatch and parameter passing

“ Plain” XML/JSON serialisation

New RSS/Atom publication capabilities

WCF V3.5 REST and Syndication

ADO.NET Data Services

ADO.NET Data Services

Data Services Built on top of WCF V3.5 CRUD access to data over a RESTful interface Returns XML (ATOM format) or JSON Built-in URI-based query syntax selection, filtering, paging, sorting Client-side libraries for .NET and AJAX clients Desktop .NET and Silverlight .NET

Built on top of WCF V3.5

CRUD access to data over a RESTful interface

Returns XML (ATOM format) or JSON

Built-in URI-based query syntax

selection, filtering, paging, sorting

Client-side libraries for .NET and AJAX clients

Desktop .NET and Silverlight .NET

data? what kind of data? Provide a type with public properties which are; IQueryable<T>, IEnumerable<T> Also get write access if your type implements; IUpdatable Works well with generated code from; ADO.NET Entity Framework ( ObjectContext ) LINQ to SQL ( DataContext* )

Provide a type with public properties which are;

IQueryable<T>, IEnumerable<T>

Also get write access if your type implements;

IUpdatable

Works well with generated code from;

ADO.NET Entity Framework ( ObjectContext )

LINQ to SQL ( DataContext* )

entity framework? who he? Extension to the provider model Conceptual model Inheritance Relationships Composite Entities Abstractions Schema of the store SQL dialact of the store “ V3.0” Store .NET Provider V2.0 Conceptual Model .NET Provider (EntitySQL) ORM & LINQ Mapping

Extension to the provider model

Conceptual model

Inheritance

Relationships

Composite Entities

Abstractions

Schema of the store

SQL dialact of the store

ADO.NET Data Services

More Data Services Capabilities Service Operations Expose more advanced functionality Query Interceptors Hook into requests for resources and run custom logic Update Interceptors Hook into modifications for resources and run custom logic

Service Operations

Expose more advanced functionality

Query Interceptors

Hook into requests for resources and run custom logic

Update Interceptors

Hook into modifications for resources and run custom logic

ADO.NET Data Services II

Resources http://www.asp.net (looking for “3.5 Extensions preview”) http://msdn.co.uk (looking for WCF V3.5 screencasts)

http://www.asp.net

(looking for “3.5 Extensions preview”)

http://msdn.co.uk

(looking for WCF V3.5 screencasts)

MSDN in the UK Visit http://msdn.co.uk Newsletter Events Screencasts Blogs

Visit http://msdn.co.uk

Newsletter

Events

Screencasts

Blogs