How to loop SOAP request with values received from a response array

I am making a SOAP request, and I am receiving the response that's returned as an array:

 - [print] [
  "M4205N",
  "M4206U"
]

For each item in the array, I want to make another SOAP request. I've read how you can do this with tables and call a feature file, and I've read how to loop through an array, and call a js function. I cannot figure out how to loop through the array, and pass each value to another SOAP request XML (one at a time).

I want to do something like this:

Given soapURL
And method post
def responseArray = /xml path for the codes I want/
def result = call read('otherRequest.feature') responseArray

The otherRequest.feature file would look something like this:

@ignore
Feature:

Background:
* def myNewRequest = read('soap.xml')

Scenario:
  Given soapURL
  * replace myNewRequest 
  | token      | value              |
  | @@refNum@@ | responseArrayValue |
  When request myNewRequest 
  And method post

However, I get this error:

GetNewMessageList.feature:27 - argument not json or map for feature call loop array position: 0, M4205N

How can I loop through each item in the array, and pass each value to the other feature file?

Solution

The addition of this one line should do what you want. Yes there is a hard requirement that the "loop" array should be an array of JSON objects. But you can convert an array of primitives in one step:

* def responseArray = karate.mapWithKey(responseArray, 'responseArrayValue')

This is documented here: https://github.com/intuit/karate#json-transforms