In most of the cases, we need no knowledge of the above stuff on how the WSDL is deciphered into proxy since we use the WSDL.EXE tool. However, the knowledge of how the proxy works would be helpful in some cases when we want to extend the Web Service’s functionality by adding more layers of processing in the proxy to give a customized output. The best example would be deciphering the airport codes in the
above SAS Flight Status XML!
In either case better understanding of WSDL and proxy’s make our life easy as Web Service Consumers.
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