WCF: IT’S

BAAACK

Tech Valley .NET User Group

November 2010

Andy Badera andrew@badera.us

Client Services, Apprenda, Inc.

WCF in .NET 4.0

Discovery, failover, bridging &

REST

AGENDA

Review

What’s New

Discovery

Tracing

Break

Failover (routing)

Protocol bridging (routing)

REST

Q&A

APPRENDA & SAASGRID

VC-backed ($6.5M) startup in Clifton Park – hiring!

Scalable SaaS-enablement platform & WCF grid for .NET

Transform single tenant apps -> multitenant

We reduce your time to market/revenue

Heavy manipulation of WCF configuration

Inject endpoints for grid awareness/participation

Inject behaviors for session management and

tenancy/subscription enforcement

ABC’S OF WCF

Address

Binding

Contract

HOSTING WCF

IIS (HTTP/S)

Within a WCF application (WinForms, WCF; P2P, rich clients)

Hosted by a Windows service

WAS (non-HTTP via IIS model)

AppFabric

WCF DEVELOPMENT/DEBUGGING

C:\Program Files (x86)\Microsoft Visual Studio

10.0\Common7\IDE

WcfTestClient

C:\Program Files\Microsoft SDKs\Windows\v7.1\Bin

SvcUtil – proxy autogenerator – “Add Service Reference”

SvcConfigEditor – “WCF Service Configuration Editor”

SvcTraceViewer

WHAT’S NEW IN 4.0

VS2010 Training Kit labs

Zero-configuration services

Default behaviors & bindings

Fileless activation (IIS/WAS)

Standard endpoints

WHAT’S NEW IN 4.0

Discovery (WS-Discovery)

http://docs.oasis-open.org/ws-dd/discovery/1.1/wsdd-discovery-

1.1-spec.html

Routing

Failover

Protocol bridging

STANDARD ENDPOINTS

Well-known infrastructure & application service types

Designated by “kind” attribute

Specify no binding, no contract – well-known

DEFAULTS

Default behavior - unnamed behavior

Default binding – protocol mappings

DISCOVERY – WS-DISCOVERY

DISCOVERY – WINDOWS RALLY

AD HOC DISCOVERY - UDP

System.ServiceModel.Discovery

Sync or Async

Broadcasts announcements

Well-known standard endpoints – UdpDiscoveryEndpoint,

UdpAnnouncementEndpoint

Filtered by various criteria

Metadata – System.ServiceModel.Description

AD HOC DISCOVERY - UDP

TRACING

WCF trace logs

Network (netmon, Wireshark)

MANAGED DISCOVERY

MANAGED DISCOVERY

MANAGED DISCOVERY – MS

STYLE

BRIDGING

System.ServiceModel.Routing

<routing /> in .config

Filters & filterType

FAILOVER

<backupLists /> in <routing /> in .config

backupList per filter

REST

REST Hands On Labs

REST Starter Kit – obsolete?

Fileless activation

RESTFUL URIS

URI templates

Old – .svc breaks REST URI protocol

New – better but not perfect

URL Routing or URL Rewriting

Q&A

UPCOMING EVENTS

CloudCamp

GiveCamp (Will Platnick, ActiveHost)

Code Camp