I’m working on a JOLT transformation but haven’t been very successful so far. I have this input:

{
  "primaryID": "DNI",
  "DNI": 123,
  "CUIL": 345
}

where the primaryID is dynamic, and I could also have different IDs. Instead of having DNI and CUIL, I could have many different labels. With that input, I’d need the following output:

{
  "NationalIds" : [ {
    "Type" : "CUIL",
    "Number": 345
  }, {
    "Type" : "DNI",
    "isPrimary" : "true",
    "Number" : 123
  } ]
}

I’ve been working on this JOLT transformation:

[
  {
    "operation": "shift",
    "spec": {
      "primaryID": {
        "$": "@(0)"
      },
      "*": "&"
    }
  },
  {
    "operation": "shift",
    "spec": {
      "CUIL": "NationalIds.CUIL",
      "DNI": "NationalIds.DNI"
    }
  },
  {
    "operation": "shift",
    "spec": {
      "NationalIds": {
        "*": {
          "@(2,Country)": "NationalIds[#2].Country",
          "$": "NationalIds[#2].Type",
          "@": "NationalIds[#2].Number"
        }
      }
    }
   },
  {
    "operation": "shift",
    "spec": {
      "NationalIds": {
        "*": {
          "Type": "NationalIds[&1].Type",
          "Number": {
            "*": {
              "primaryID": {
                "#true": "NationalIds[&4].isPrimary"
              },
              "*": {
                "$": "NationalIds[&4].Number"
              }
            }
          }
        }
      }
    }
  }
  ]

But the output that I get is:

{
  "NationalIds" : [ {
    "Type" : "CUIL"
  }, {
    "Type" : "DNI",
    "isPrimary" : "true",
    "Number" : "123"
  } ]
}

Any ideas would be highly appreciated!