Question 109310 in Json Question posted in
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Json – JOLT Transformation : Need help in list of values

I’m attempting to transform JSON to JSON by bringing the list values from the input JSON to the main object, but I’m finding the syntax confusing.

Input JSON:

[
  {
    "Request": {
      "Id": "id1",
      "name": "5-221734537593",
      "CreatedBy": "abc",
      "Updated": "02/28/2023 19:48:41",
      "UpdatedBy": "xyz",
      "ListOfNotes": {
        "Notes": [
          {
            "sent": "Y",
            "Id": "id2",
            "Created": "02/28/2023 19:46:00",
            "CreatedBy": "lmn",
            "Updated": "02/28/2023 19:46:06",
            "UpdatedBy": "efg"
          },
          {
            "sent": "Y",
            "Id": "id2",
            "Created": "02/28/2023 19:46:00",
            "CreatedBy": "lmn",
            "Updated": "02/28/2023 19:46:06",
            "UpdatedBy": "efg"
          }
        ]
      },
      "ListOfActions": {
        "Actions": [
          {
            "actId": "123",
            "actionPerformed": "y",
            "actionBy": "abc"
          },
          {
            "actId": "234",
            "actionPerformed": "y",
            "actionBy": "xyz"
          }
        ]
      }
    }
  }
]

Expected output:

[
  {
    "Id": "id1",
    "name": "5-221734537593",
    "CreatedBy": "abc",
    "Updated": "02/28/2023 19:48:41",
    "UpdatedBy": "xyz"
  },
  {
    "Notes": [
      {
        "sent": "Y",
        "Id": "id2",
        "Created": "02/28/2023 19:46:00",
        "CreatedBy": "lmn",
        "Updated": "02/28/2023 19:46:06",
        "UpdatedBy": "efg"
      },
      {
        "sent": "Y",
        "Id": "id2",
        "Created": "02/28/2023 19:46:00",
        "CreatedBy": "lmn",
        "Updated": "02/28/2023 19:46:06",
        "UpdatedBy": "efg"
      }
    ]
  },
  {
    "Actions": [
      {
        "actId": "123",
        "actionPerformed": "y",
        "actionBy": "abc"
      },
      {
        "actId": "234",
        "actionPerformed": "y",
        "actionBy": "xyz"
      }
    ]
  }
]

Spec tried:

[
  {
    "operation": "shift",
    "spec": {
      "*": {
        "Request": {
          "Id": "[#].&",
          "name": "[#].&",
          "CreatedBy": "[#].&",
          "Updated": "[#].&",
          "UpdatedBy": "[#].&"
        }
      }
    }
  }
]

The output I am currently getting is missing the Notes and Actions fields, and I am unsure how to correctly transform them.

[
  {
    "Id": "id1",
    "name": "5-221734537593",
    "CreatedBy": "abc",
    "Updated": "02/28/2023 19:48:41",
    "UpdatedBy": "xyz"
  }
]
Tags:

2

Answers


  1. 0

    You can use the following shift transformation spec

    [
  {
    "operation": "shift",
    "spec": {
      "*": {
        "*": { // reduce two levels starting from the outermost layer
          "*": "&",   // else case
          "List*": "" // the objects/arrays start with "List"
        }
      }
    }
  }
]
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  2. 0

    If the order of input JSON is different, the following JOLT spec can be more accurate.

    [
  {
    "operation": "shift",
    "spec": {
      "*": {
        "*": {
          "*": "[0].&",
          "List*": "[]"
        }
      }
    }
  }
]
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