Help with JOLT Spec to add new json key with a value from another key

[#1]

Hoping someone can help me with a JOLT spec.

I have the following json:

{

"schemaVersion": "3.2",

"uniqueIdentifier": "ri.nzRNR5a3ad1AzOkv_2FU9WN6Z_2FluxpEl4eXjgUnYpgkvk_3D",

"entityType": "CAR"

}

and I need to use JOLT to transform to this:

{

"_id": "ri.nzRNR5a3ad1AzOkv_2FU9WN6Z_2FluxpEl4eXjgUnYpgkvk_3D",

"schemaVersion": "3.2",

"uniqueIdentifier": "ri.nzRNR5a3ad1AzOkv_2FU9WN6Z_2FluxpEl4eXjgUnYpgkvk_3D",

"entityType": "CAR"

}

I cannot figure out the correct spec.

Thanks!

[#2 · Accepted solution]

Hi,

You can do this in different ways , here is one of them:

[
  {
    "operation": "shift",
    "spec": {
      "@uniqueIdentifier": "_id",
      "*": "&"
    }
  }
]

Hope that helps.

[#3]

Thank you so much - that worked perfectly.  I have so much to learn about JOLT.