How to remove the DTOSteps node which contains id using mule 4

Question

I am trying to remove DTOSteps node if it contains an ID attribute.

Input XML:

I tried the dataweave 2.0 but it removes all the DTOSteps node from input xml.

My dataweave code:

%dw 2.0
output application/xml

fun FNtransformCoverage(x, index)=
    x match {
      case is Object -> x mapObject 
        if ($$ as String == "DTOCoverage" )
            { 
                DTOCoverage @(( $$.@ )): $ - "DTOSteps"

            }
        else 
            (($$): FNtransformCoverage($, index+1)) 
      else -> $
    }
    
---
FNtransformCoverage(payload,1)

Expected output: https://github.com/Manikandan99/Map_request/blob/main/Transformed_output.xml

Any ideas please on how to remove DTOSteps which contains id using dataweave 2.0?

user_721855 · Answer

You script has the right high level approach. It just needed to use filterObject() to remove the elements. Then mapObject is used only to recursively apply to the nested elements.

%dw 2.0
output application/xml
fun FNtransformCoverage(x)=
    x match {
        case is Object -> 
            x 
                filterObject ((value, key, index) ->
                    key as String != "DTOSteps" or not (key.@id?))
                mapObject ($$):FNtransformCoverage($)
        else -> $
    }
---
FNtransformCoverage(payload)

Output:

Note: there is a duplicated line in your expected output.

How to remove the DTOSteps node which contains id using mule 4

1 Answers