Real World XML Web Services: For VB and VB .NET Developers

4.3. A WSDL Example

Let's take a look at a simple example Web service and the corresponding WSDL document. I created a VB 6 COM component called VB6Weather with one method:

Public Function GetTemperature(ByVal zipcode As String, _ 
                        ByVal celsius As Boolean) As Single
'code omitted

End Function

Then I ran the SOAP Toolkit's WSDL Generator to create the corresponding WSDL which is shown in Listing 4.1.

Listing 4.1. A WSDL document created by the SOAP Toolkit's WSDL Generator (VBWSBook\Chapter4\ExampleWSDLs\VB6Weather.wsdl)

<?xml version='1.0' encoding='UTF-8' ?> <!-- Generated 08/16/01 by Microsoft SOAP Toolkit WSDL File Generator, Version 1.02.813.0 --> <definitions name ='VB6Weather' targetNamespace = 'http://tempuri.org/wsdl/' xmlns:wsdlns='http://tempuri.org/wsdl/' ...