Call a Web Service from a WebService Task

Declares an 'HttpConnection' targeting a SOAP WSDL endpoint (the legacy webservicex.net stockquote service) and a 'FileConnection' that creates the response XML at 'c:\Output.XML'. The 'WebServiceTask.GetXML' package runs a single 'WebService' task that points at the 'StockQuote' service and 'GetQuote' web method, pulls the 'symbol' input from the 'User::StockSymbol' variable, and writes the returned XML to the file connection. 'OverwriteWsdlFile="true"' refreshes the local WSDL stub each run, and the external WSDL path is set to 'c:\qoute.wsdl' as an existing file.

The webservicex.net stockquote service has been retired and is no longer reachable; the snippet is preserved as a complete example of wiring a 'WebService' task to an HTTP connection, an external WSDL, a file output, and a variable-bound input parameter. Swap the endpoint and methods for any live SOAP service you need to call.

<Biml xmlns="http://schemas.varigence.com/biml.xsd">
  <Connections>
    <HttpConnection Name="HTTPConnection"
      ServerUrl="HTTP://www.webservicex.net/stockquote.asmx?wsdl"></HttpConnection>
    <FileConnection Name="FCOutputXmL"
      FilePath="c:\\Output.XML"
      FileUsageType="CreateFile"></FileConnection>
  </Connections>
  <Packages>
    <Package Name="WebServiceTask.GetXML" ConstraintMode="Linear">
      <Variables>
        <Variable Name ="StockSymbol"
          DataType="String"
          EvaluateAsExpression="false">"CBR"</Variable>
        <!--Stock symbol has to be enclosed in double quotes-->
      </Variables>
      <Tasks>
        <WebService Name="WST Get Stock Quote"
          ServiceName="StockQuote"
          OverwriteWsdlFile ="true"
          ConnectionName="HTTPConnection"
          WebMethod="GetQuote">
          <ExternalWsdlFile ExternalFilePath="c:\\qoute.wsdl"
            FileUsageType="ExistingFile" ></ExternalWsdlFile>
          <FileOutput ConnectionName="FCOutputXmL"></FileOutput>
          <Parameters>
            <Parameter  Name="symbol"
              DataType="String"
              ParameterType="Variable"
              VariableName="User.StockSymbol"></Parameter>
          </Parameters>
        </WebService>
      </Tasks>
    </Package>
  </Packages>
</Biml>

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Submitted by John Minkjan.