MuleSoft Dataweave Tutorial: Part I - JSON To XML Example

Use Case One

Input

{
    "medication": {
        "name": "Natrecor"
    },
    "genericequivalents": [
        {
            "name": "Narecor",
            "label": "Erlotinib2"
        }
    ]
}

DW Code

%dw 1.0
%output application/xml
---
response: {
 medication : payload.medication, 
 genericequivalents: { 
  (payload.genericequivalents map {
    names : {
     label: $.label,
     name: $.name 
    }
  }) 
 } 
} 

Use Case Two

Input

{
    "medication": "praxel",
    "genericequivalents": {
        "name": [
            "Praxe",
            "Praxedes",
            "Paxel",
            "Pragel",
            "Fraxel",
            "Parexel"
        ]
    }
}

DW Code

%dw 1.0
%output application/xml
---
{
 response: {
  medication: payload.medication,
  genericequivalents: {
   (payload.genericequivalents.name map ((name , indexOfName) -> {
    name: name
   }))
  }
 }
}

Output

   praxel
   
      Praxe
      Praxedes
      Paxel
      Pragel
      Fraxel
      Parexel