Change value Array of Objects in mulesoft

Question

I am beginner for mulesoft I have output payload transform message as below but I have to replace inside promotions array planChangeRequired attribute value as true always, can some one help me how can we replace it.

output Payload

{
  "content": {
    "data": {
      "sharedDataGroups": [
        {
          "empId": 100,
          "empName": "Ram"
        },
        {
          "empId": 200,
          "empName": "Santhosh"
        }
      ],
      "promotions": [
        {
          "id": "14400007",
          "discount": 10.0,
          "planChangeRequired": false
        }
      ]
    }
  },
  "meta-info": {
    "version": "V1",
    "timestamp": "2022-02-11T12:48:27.679"
  }
}

Expected Result

{
  "info": {
    "sharedDataGroups": [
      {
        "empId": 100,
        "empName": "Ram"
      },
      {
        "empId": 200,
        "empName": "Santhosh"
      }
    ],
    "promotions": [
      {
        "id": "14400007",
        "discount": 10.0,
        "planChangeRequired": **true**
      }
    ]
  },
  "meta-info": {
    "version": "V1",
    "timestamp": "2022-02-11T12:48:27.679"
  }
}

Answer 1

try the below code

%dw 2.0
output application/json  
---
payload update {
  case .info -> $ update {
    case promo at .promotions -> promo map ((item, index) -> item update {
        case .planChangeRequired -> "true"
      }
    )
  }

}