COM326: COM326: Web Services for XML Web Services for XML ProgrammersProgrammers

Doug PurdyDoug PurdyLead Program ManagerLead Program ManagerConnected Systems DivisionConnected Systems Division

Meta-TalkMeta-Talk

GoalsGoalsShow the wonderful XML support in WCFShow the wonderful XML support in WCF

Show how to support non-SOAP Show how to support non-SOAP protocolsprotocols

Show off XLinq in the context of WCFShow off XLinq in the context of WCF

Non-GoalsNon-GoalsShow WCF interoperability Show WCF interoperability (take our word (take our word for it)for it)

Drill into metadata extensibilityDrill into metadata extensibility

Demonstrate “pull-mode” messagingDemonstrate “pull-mode” messaging

Address Contract

WCF in a NutshellWCF in a Nutshell

ServiceServiceClientClient

MessageMessage

Where? How? What?

A B C A B C

Binding

Architectural Commitments

Common Language RuntimeCommon Language Runtime

Extensible Markup LanguageExtensible Markup Language

WCF Message & Typed WCF Message & Typed ViewsViews

Featuring some XLinq magic!Featuring some XLinq magic!

Type ValidationType Validation

There are two types of validationThere are two types of validationCLR: XmlFormatter/XmlSerializerCLR: XmlFormatter/XmlSerializer

XSD: XmlValidatingReader XSD: XmlValidatingReader

Serializers always do validationSerializers always do validationValidation is done against the CLR typeValidation is done against the CLR type

This is not the same as This is not the same as schema schema validationvalidation

WCF enables schema validationWCF enables schema validationAlthough you need to write some code… Although you need to write some code…

Schema ValidationSchema Validation

Hmm… Were you suppose to send Hmm… Were you suppose to send that?that?

Protocol IntegrationProtocol IntegrationWCF Concept

SOAP, WS-*, ...

Infrastructure Protocols

POX, RSS, ...

Application ProtocolsContracts

Addresses

Bindings

XML solves more problems then it causes XML solves more problems then it causes

Metadata allows better dev experienceMetadata allows better dev experience

SOAP enables rich extensibility & securitySOAP enables rich extensibility & security

Be pragmatic – use what you need!Be pragmatic – use what you need!

REST & POXREST & POX

WCF is a big, big tent – all XML WCF is a big, big tent – all XML welcomedwelcomed

TransformationTransformation

<person> <id>12</id> <street>Street</street> <zip>98052</zip></person>

Inbound Message

<person> <id>12</id> <address> <street>Street</street> <zip>98052</zip> </address></person>

Expected Message

Transformation

[DataContract]public class person {

[DataMember] int id;

[DataMember] Address address;}

public class Person {

int id;

string street;

int zip;

}

Serialize Deserialize

Optional – for you

TransformationTransformation

Can’t you just put this data in that type?Can’t you just put this data in that type?

Wrapping UpWrapping Up

Key TakeawaysKey TakeawaysWCF is WCF is thethe XML Communication XML Communication Platform!Platform!

AllAll protocols are welcomed! protocols are welcomed!

ResourcesResourcesmicrosoft.public.windows.developer.winfx.microsoft.public.windows.developer.winfx.indigoindigo

http://msdn.microsoft.com/webservices/http://msdn.microsoft.com/webservices/

douglasp@microsoft.comdouglasp@microsoft.com

http://http://douglasp.com/blogdouglasp.com/blog

© 2005 Microsoft Corporation. All rights reserved.This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.