SoapConnection is used to create the Soap_proxy object with connection options that you set using SoapConnection object methods. Once a proxy object for a Web service is created, the client application can begin accessing the Web service. To invoke a Web service method, the proxy object must contain the following information:
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End point of service, obtained from a WSDL file
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Namespace definition used in the SOAP method call
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Any structure definition, when applicable
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An instance variable for each returned structure array, since all returned arrays are any
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One or more SOAP methods and corresponding alias strings
