WCf Over View Wcf is part of SOA
- Slides: 53
WCf Over. View
Wcf is part of SOA Service side story Clientside neednot have to WCF Client side Story Could be Client or Server side Could be Integrated with WCF
WCF and SOA
• Suppose you have a CRM System, Accounting System and Reporting System in place, you will think of creating a API layer for this Functionality. • WCF is all about exposing the functionality over API layer (Service) defined by a contract. • WCF is Buildup from Ground up level to be a first class SOA citizen.
Lets discuss that in SOA we have Little SOA and Big SOA
• Suppose we have a Agency Management System of a Insurance Company which is Busy in day to day activities, like providing certificates, issuing policies, keep track of customer for a particular customer on a particular Policy. • There fore “Agency Management System ” that is small exe but in the backend it has big activities/functionality like Reporting System with a separate database, CRM System with a Separate Table etc.
Lets create a API layer for this Functionality, that’s is exposing the functionality over API layer defined by a contract. By hiding the crucial details. Business Tier Components Cordinates the Functionality at Data Tier Level All the details of access to table and all
Therefore we should have a Service that Isolates this Business Tier and Data Tier that Is a single application system from another. And expose this a s unit over a Service Layer (which defines security, contract, policy of Communication) to Agency management System is Little SOA and to other applications of Business Partners etc. Over the net is Bigger SO
Scenarios/ Applications Where I can USE WCF
Here we have Message level Security
WCF- Interoperability and Integration
We are getting into the scenario where I have to look and think less At/on xml form in message more concentrate on features required
Client and Service
Client will choose one of the end point based on the Protocol to use Explicit contract are Defined over the Service Contract Component Host is Living for the Message to be received And the End Points are the entry Points
Practicals
Class. Library
Host
Client Manually copy the meta data
There is away to generate the Proxy (Meta Data Information) without hand Coding it, that’s via WSDL
Should be service description Language. For Http Protocol
When we say host. open(), it create/opens the channels for communication and the creates the Service Description , so at runtime information of the Protocols, what all End points are available. So it generates the WSDl document. And client use the same to create the Proxy. The service Model Generates the Service Description file
You can mail this WSDL to Client and Ask client to use svcutil. exe tool, to generate the Proxy
Next
Keep this on therefore will have two endpoints
The end
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