Move child id to parent id in jolt

Question

I have a below input JSON and need to convert it to output JSON via jolt.

Input :

{
  "A": "value1",
  "B": "value2",
  "C": {
    "D": "x1",
    "E": "x2"
  }
}    

Output :

{
  "A": "value1",
  "B": "value2",
  "E": "x2",
  "C": {
    "D": "x1"
  }
}    

Can anyone help me with the jolt specs?

Answer 1

Take E from the sub document and put it into the root document.

Jolt spec:

[
  {
    "operation": "shift",
    "spec": {
      "*": {
        "*": "[&1].&",
        "C": {
          "E": "[&2].&",
          "*": "[&2].C.&"
        }
      }
    }
  }
]

Input:

[
  {
    "A": "value1",
    "B": "value2",
    "C": {
      "D": "x1",
      "E": "x2",
      "F": {
        "a": "x1",
        "x": {
          "y": 1
        }
      },
      "H": "x4"
    }
  }
]

Output:

[
  {
    "A": "value1",
    "B": "value2",
    "C": {
      "D": "x1",
      "F": {
        "a": "x1",
        "x": {
          "y": 1
        }
      },
      "H": "x4"
    },
    "E": "x2"
  }
]