What is WSDL?

Answer Posted / swapna

WSDL is the Web Service Description Language, and it is
implemented as a specific XML vocabulary. While it's very
much more complex than what can be described here, there
are two important aspects to WSDL with which you should be
aware.

First, WSDL provides instructions to consumers of Web
Services to describe the layout and contents of the SOAP
packets the Web Service intends to issue. It's an
interface description document, of sorts. And second, it
isn't intended that you read and interpret the WSDL.

Rather, WSDL should be processed by machine, typically to
generate proxy source code (.NET) or create dynamic proxies
on the fly (the SOAP Toolkit or Web Service Behavior).

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