B4X

Simple SOAP Request

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Demonstrates how to send a simple SOAP request. B4X

Dim success As Boolean = False

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

'  Create the following XML to be sent in the SOAP request body.

'  <soapenv:Envelope xmlns:dat="http://www.dataaccess.com/webservicesserver/" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
'      <soapenv:Header/>
'      <soapenv:Body>
'          <dat:NumberToDollars>
'              <dat:dNum>99.0</dat:dNum>
'          </dat:NumberToDollars>
'      </soapenv:Body>
'  </soapenv:Envelope>

Dim xml As ChilkatXml
xml.Initialize
xml.Tag = "soapenv:Envelope"
xml.AddAttribute("xmlns:dat", "http://www.dataaccess.com/webservicesserver/")
xml.AddAttribute("xmlns:soapenv", "http://schemas.xmlsoap.org/soap/envelope/")
xml.UpdateChildContent("soapenv:Header", "")
xml.UpdateChildContent("soapenv:Body|dat:NumberToDollars|dat:dNum", "99.0")

'  In a SOAP HTTP request, including the XML declaration (<?xml version="1.0" encoding="UTF-8"?>) in the XML body is generally not required. 
xml.EmitXmlDecl = False
Dim soapRequestBody As String = xml.GetXml

Dim endpoint As String = "https://www.dataaccess.com/webservicesserver/numberconversion.wso"
Dim soapAction As String = ""
'   For SOAP requests, the standard Content-Type is usually set to "text/xml" or "application/soap+xml"
Dim contentType As String = "text/xml"

Dim http As ChilkatHttp
http.Initialize("http")

http.ClearHeaders
http.SetRequestHeader("SOAPAction", soapAction)

Dim resp As ChilkatHttpResponse
resp.Initialize
success = http.HttpStr("POST", endpoint, soapRequestBody, "utf-8", contentType, resp)
If success = False Then
    Log(http.LastErrorText)
    Return
End If


'  Get the XML response body.
Dim responseXml As ChilkatXml
responseXml.Initialize
resp.GetBodyXml(responseXml)

Dim statusCode As Int = resp.StatusCode
Log("response status code: " & statusCode)

'  If the status code does not indicate succcess, then show the response XML,
'  which probably contains error information.
If statusCode <> 200 Then
    Log(responseXml.GetXml)
    Return
End If


Log(responseXml.GetXml)

'  Parse the successful SOAP response XML.

'  This is a sample of the response XML, but the namespace prefixes will be different.
'  We can parse the result using "*" for the namespace prefixes (see below).

'  <soapenv:Envelope xmlns:dat="http://www.dataaccess.com/webservicesserver/" xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
'      <soapenv:Header/>
'      <soapenv:Body>
'          <dat:NumberToDollarsResponse>
'              <dat:NumberToDollarsResult>string</dat:NumberToDollarsResult>
'          </dat:NumberToDollarsResponse>
'      </soapenv:Body>
'  </soapenv:Envelope>

Dim dat_NumberToDollarsResult As String = responseXml.GetChildContent("*:Body|*:NumberToDollarsResponse|*:NumberToDollarsResult")
Log("result: " & dat_NumberToDollarsResult)