How do I use Jolt to json array to nested json?

[#1]

Hi,

I am new to NiFi (1.14) and trying to use the JOLTTransform processor to transform input json (flat) to nested json. Could not able to fix with JOLT Schema. kindly help me on this. 

GetFile --->JOLTTranform-->PutFile

The Input Json is 

[
  {
    "executionTime": "2244",
    "processorId": "3ef03f9c-b42c-4c4e-9d5f-d14878bb2c84",
    "filename": "Trading",
    "processStartTime": "2021-07-26 16:31:19",
    "processSQL": "TradingDetails.sql",
    "executionFetchTime": "2049",
    "sourceCountValue": "5076",
    "startTime": "1627297279651",
    "processGroupName": "Trading"
  },
  {
    "ProcessEndTime": "2021-07-26 16:31:29",
    "completedTime": "1627297289412",
    "processDuration": "0",
    "destCountValue": "5076",
    "tableName": "TRADINGDETAILS"
  },
  {
    "ProcessEndTime": "2021-07-26 16:31:29",
    "completedTime": "1627297289412",
    "processDuration": "0",
    "destCountValue": "5076",
    "tableName": "CUSTTRADINGDETAILS"
  }
]

 and the expected output json is

{
  "Trading": {
    "Source": {
      "executionTime": "2244",
      "processorId": "3ef03f9c-b42c-4c4e-9d5f-d14878bb2c84",
      "filename": "Trading",
      "processStartTime": "2021-07-26 16:31:19",
      "processSQL": "TradingDetails.sql",
      "executionFetchTime": "2049",
      "sourceCountValue": "5076",
      "startTime": "1627297279651",
      "processGroupName": "Trading"
    },
    "Destination": {
      "TRADINGDETAILS": {
        "ProcessEndTime": "2021-07-26 16:31:29",
        "completedTime": "1627297289412",
        "processDuration": "10",
        "destCountValue": "5076",
        "tableName": "TRADINGDETAILS"
      },
      "CUSTTRADINGDETAILS": {
        "ProcessEndTime": "2021-07-26 16:31:29",
        "completedTime": "1627297289412",
        "processDuration": "10",
        "destCountValue": "5076",
        "tableName": "CUSTTRADINGDETAILS"
      }
    }
  }
}

 Thanks in advance.

[#2]

Hello

This is not a NiFi problem, you may try to use some online tool to help

https://jolt-demo.appspot.com/#inception