Question 109586 in Json Question posted in
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How to convert string "{}" to empty dictionary {} JSON in Jolt? I am trying to replace "{}" by {} in Jolt

Input JSON value :

 {
  "age": [
    {
      "r": "r1",
      "d": "{}"
    }
  ]
}

Desired Output :

{
  "age": [
    {
      "r": "r1",
      "d": {}
    }
  ]
}

I tried using modify-overwrite-beta but unable to replace string by empty dictionary.

Tags:

2

Answers


  1. 0

    You can use the following shift transformation spec in order to convert {} to null, and then modify transformation spec along with notNull function to return the desired result such as

    [
  {
    "operation": "shift",
    "spec": {
      "age": {
        "*": {
          "*": {
            "*": { "@1": "&4[&3].&2" },
            "{}": "&3[&2].&1"
          }
        }
      }
    }
  },
  {
    "operation": "modify-overwrite-beta",
    "spec": {
      "age": {
        "*": {
          "*": ["=notNull", {}]
        }
      }
    }
  }
]

    the demo on the site http://jolt-demo.appspot.com/ is

    enter image description here

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  2. 0

    You can use this spec:

    [
  {
    "operation": "shift",
    "spec": {
      "*": {
        "*": {
          "*": "&2.[&1].&",
          "d": {
            "{}": "&3.[&2].&1.temp"
          }
        }
      }
    }
  },
  {
    "operation": "remove",
    "spec": {
      "age": {
        "*": {
          "d": {
            "*": ""
          }
        }
      }
    }
  }
]
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