Download - Web HTTP Services Data Services
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Developing REST Applications with the .NET FrameworkHenrik Frystyk Nielsen, Principal Architect
FT55
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Do You Speak REST?
> What is REST?> Why REST?> How does .NET support REST? > How do I get started?
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Constrained Interactions
> Resource are identified by URIs
> Resources are exposed in terms of state
> Resources can only interact through exchange of state
> Resource behavior is hidden
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Guiding Principles or Straight Jacket?> Loose coupling
> Resources only see each other as state> Scalability
> State is often cacheable and can be moved around> Composability
> State + State = State> Deployment
> State can be rendered in many different ways> Reuse and Interop
> State is easy to consume> Observability
> State shows what the system is doing
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Going Beyond Retrieval
> HTTP Vocabulary> GET – get state> PUT – create/replace state> POST – insert/modify/process state> DELETE – delete state> OPTIONS – metadata
> Atom and AtomPub> Collections and link relationships
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Open Data Protocol (OData)
> A RESTful protocol for data sharing> It all started with Astoria, or “Data
Services”> A set of conventions on top of
AtomPub> Structured data, expanded hierarchies,
queries in URLs, batching> With many products following the
conventions, it was time for a name
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From Browsing to App Model
> Move towards HTTP/REST across all tiers> Mash-ups, Cloud Services, User Interface> Computation and Business Logic> Databases and Files> Devices and hardware
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Service alignment
> WCF WebHttp Services (WCF REST)> Building RESTful as well as Xml over HTTP services with
control over URI/format/protocol> WCF Data Services (ADO.Net Data Services)
> Exposing data models through a RESTful interface> WCF RIA Services (.NET RIA Services)
> Building end-to-end Silverlight application> WCF Core Services
> Full flexibility for building operation-centric services with industry standard interop, as well as channel and host plug-ability.
> WCF Workflow Services> Long running, durable operations or where the
specification and enforcement of operation sequencing is important
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Windows Communication Foundation
Channel ModelFormats
(Atom, JSON, XML,…)
Transports(HTTP, TCP, …)
Protocols(SOAP, HTTP, Open Data Protocol,…)
Service Model
Data ContractService
ContractService Behavior
Programming Model
Core Services
Web HTTP
Services
Data Services
RIA Services
Workflow
Services
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DEMO
ServiceOperation style HTTP/REST services
Web HTTP Services
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DEMO
Exposing RESTful data models
Data Services
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DEMO
Rich end-to-end Silverlight apps
RIA Services
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Demo Recap…
> WCF WebHttp Services (WCF REST)> Building RESTful as well as Xml over HTTP
services with control over URI/format/protocol
> WCF Data Services (ADO.Net Data Services)> Exposing data models through a RESTful
interface> WCF RIA Services (.NET RIA
Services)> Building end-to-end Silverlight application
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DEMO
Mixing HTTP, Data & RIA Services
>>FUTURE
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DEMO
New generation HTTP API
Http Client
>>FUTURE
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What’s Next?
> What is REST?> Architectural style for state-driven applications> Key is constrained interactions
> Why REST?> Interop between cloud, on-premise, cross-
domains> Move towards resource-based application
model> How do I get started?
> .NET 4.0 Beta 2 and Silverlight 4.0 Preview> http://blogs.msdn.com/endpoint
> Blogs and announcements
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Catch These PresentationsID Title
CL06 Networking and Web Services in Silverlight
CL07 Mastering Microsoft .NET RIA Services
CL21 Building Amazing Business Applications with Microsoft Silverlight and Microsoft .NET RIA Services
FT10 Evolving ADO.NET Entity Framework in .NET 4 and Beyond
FT12ADO.NET Data Services: What’s new with the RESTful data services framework
FT13 What’s New for Windows Communication Foundation 4
PR02 Overview of SharePoint 2010 Programmability
PR12 It's All About the Services: Developing Custom Applications for Microsoft SharePoint Server 2010 Using Microsoft ASP.NET, WCF, and REST
SVC19 REST Services Security Using the Microsoft .NET Access Control Service
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Learn More On Channel 9
> Expand your PDC experience through Channel 9
> Explore videos, hands-on labs, sample code and demos through the new Channel 9 training courses
channel9.msdn.com/learnBuilt by Developers for Developers….
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