What is Windows Communication Foundation(WCF)?

  • Posted on : June 15, 2009
  • Modified: July 6, 2018

  • Author : SPEC INDIA
  • Category : ASP .NET

Originally tagged with the code name “Indigo”, WCF is one of the four new application programming interfaces introduced with .NET Framework 3.0, which was released in December 2006. The .NET Framework is Microsoft technology that ships in Windows operating systems (client, server and mobile platforms). The .NET Framework v3.0 is included in Windows Vista and Windows Server 2008; It is available as a free download for Windows XP and Windows Server 2003, and a similar but separate version is also available for .NET Compact Framework version 3.5.

Because WCF is part of the .NET Framework, applications that use WCF can be developed in any programming language that can target the .NET runtime.

The WCF unifies the various communications programming models supported in .NET 2.0, into a single model. Released in November 2005, .NET 2.0 provided separate APIs for SOAP-based communications for maximum interoperability (Web Services), binary-optimized communications between applications running on Windows machines (.NET Remoting), transactional communications (Distributed Transactions), and asynchronous communications (Message Queues). WCF unifies the capabilities from these mechanisms into a single, common, general Service-oriented programming model for communications.

WCF can use SOAP messages between two processes, thereby making WCF-based applications interoperable with any other process that communicates via SOAP messages. When a WCF process communicates with a non–WCF process, XML-based encoding is used for the SOAP messages but when it communicates with another WCF process, the SOAP messages can be encoded in an optimized binary format. Both encodings conform to the data structure of the SOAP format, called Infoset.

WCF uses a pluggable encoding system, allowing developers to write their own encoders. With the release of the .NET Framework 3.5 in November 2007, Microsoft released an encoder that added support for the JSON serialization format to WCF This allows WCF service endpoints to service requests from AJAX-powered web pages.

, or WCF, is a programming framework used to build applications that inter-communicate. WCF is the part of the .NET Framework dedicated to communications.

Author: SPEC INDIA


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