How to remove SOAP Optional elements in the request - soap

Question

Using Karate, I would like to build a soap request.
There are Optional elements in the SOAP Request, how to remove them based on the Scenario Outline: Example?
Shared an example, for the purpose of discussion. If there is already a sample code, please share, thank you.
Feature: SOAP request to get Customer Details
Background:
Given url 'http://localhost:8080/CustomerService_V2_Ws'
Scenario Outline:
* def removeElement =
"""
function(parameters, inputXml) {
if (parameters.city = null)
karate.remove(inputXml, '/Envelope/Header/AutHeader/ClientContext/city');
if (parameters.zipcode = null)
karate.remove(inputXml, '/Envelope/Header/AutHeader/ClientContext/zipcode');
return inputXml;
}
"""
* def inputXml = read('soap-request.xml')
* def updatedXml = removeElement(parameters,inputXml)
Given request updatedXml
When soap action ''
Then status <http_code>
Examples:
| CustomerId | ZipCode | City |
| 001 | null | null |
| 002 | 41235 | null |
| 003 | null | New York |
**Contents of "soap-request.xml"**
<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Header>
<wsc1:AutHeader xmlns:wsc1="http://example.com/ws/WSCommon_v22">
<wsc1:SourceApplication>ABC</wsc1:SourceApplication>
<wsc1:DestinationApplication>SoapUI</wsc1:DestinationApplication>
<wsc1:Function>CustomerService.readDetails</wsc1:Function>
<wsc1:Version>2</wsc1:Version>
<wsc1:ClientContext>
<wsc1:customerid>10000</wsc1:customerid>
<!--Optional:-->
<wsc1:zipcode>11111</wsc1:zipcode>
<!--Optional:-->
<wsc1:city>xyz</wsc1:city>
</wsc1:ClientContext>
</wsc1:AutHeader>
</soapenv:Header>
<soapenv:Body />
</soapenv:Envelope>

Answer 1

Yes my suggestion is use embedded expressions. When the expression is prefixed with 2 hash signs, this will "delete if null" which was designed for your exact use case. Here is an example:
Scenario: set / remove xml chunks using embedded expressions
* def phone = '123456'
# this will remove the <acc:phoneNumberSearchOption> element
* def searchOption = null
* def search =
"""
<acc:getAccountByPhoneNumber>
<acc:phoneNumber>#(phone)</acc:phoneNumber>
<acc:phoneNumberSearchOption>##(searchOption)</acc:phoneNumberSearchOption>
</acc:getAccountByPhoneNumber>
"""
* match search ==
"""
<acc:getAccountByPhoneNumber>
<acc:phoneNumber>123456</acc:phoneNumber>
</acc:getAccountByPhoneNumber>
"""
Do note that there are many more examples here: xml.feature