Xbase++

SOAP Web Service (HTTP POST)

Demonstrates how to call PostXml to call a SOAP web service. Xbase++

LOCAL nSuccess
LOCAL oXml
LOCAL cStrXml
LOCAL nResponseStatusCode
LOCAL oHttp
LOCAL cEndPoint
LOCAL oResp
LOCAL oXmlResp

nSuccess := 0

//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

//  --------------------------------------------------------------------------------
//  Also see Chilkat's Online WSDL Code Generator
//  to generate code and SOAP Request and Response XML for each operation in a WSDL.
//  --------------------------------------------------------------------------------

//  This example uses a live web service at:
//  http://www.webservicex.net/uklocation.asmx
//  It gets the UK town,Postcode and County by Postcode(First Section of Post Code)

//  The SOAP XML will look like this:
//  <?xml version="1.0" encoding="utf-8"?>
//  <soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
//    <soap:Body>
//      <GetUKLocationByPostCode xmlns="http://www.webserviceX.NET">
//        <PostCode>string</PostCode>
//      </GetUKLocationByPostCode>
//    </soap:Body>
//  </soap:Envelope>

//  For this example's sake, we'll load the XML from a file.  We'll test using PostCode "E3".  
//  The SOAP XML for this example may be downloaded from:
//  http://www.chilkatsoft.com/testData/ukPostCodeSoap.xml
oXml := CreateObject("Chilkat.Xml")
nSuccess := oXml:LoadXmlFile("ukPostCodeSoap.xml")
IF (nSuccess == 0)
    ? oXml:LastErrorText
    oXml:destroy()
    RETURN
ENDIF

cStrXml := oXml:GetXml()

oHttp := CreateObject("Chilkat.Http")

//  We'll need to add this in the HTTP header:
//  SOAPAction: "http://www.webserviceX.NET/GetUKLocationByPostCode"
oHttp:SetRequestHeader("SOAPAction", "http://www.webserviceX.NET/GetUKLocationByPostCode")

//  The endpoint for this soap service is:
cEndPoint := "http://www.webservicex.net/uklocation.asmx"

//  Note: This particular web service was live and functioning at the time this example
//  was written.  It is possible that as time progresses, this web service will no longer
//  be availble...
oResp := CreateObject("Chilkat.HttpResponse")
nSuccess := oHttp:HttpStr("POST", cEndPoint, cStrXml, "utf-8", "text/xml", oResp)
IF (nSuccess == 0)
    ? oHttp:LastErrorText
    oXml:destroy()
    oHttp:destroy()
    oResp:destroy()
    RETURN
ENDIF

nResponseStatusCode := oResp:StatusCode
//  You may wish to verify that the responseStatusCode equals 200...
? "Response Status Code: " + Str(nResponseStatusCode)

//  You may examine the exact HTTP header sent with the POST like this:
? "LastHeader:"
? oHttp:LastHeader

//  Examine the XML returned by the web service:
? "XML Response:"
oXmlResp := CreateObject("Chilkat.Xml")
oXmlResp:LoadXml(oResp:BodyStr)
? oXmlResp:GetXml()

//  Use this online tool to generate parsing code from response XML: 
//  Generate Parsing Code from XML

oXml:destroy()
oHttp:destroy()
oResp:destroy()
oXmlResp:destroy()