Iterate Fixed number of loop in Mule 4 using Dataweave

In this tutorial we will demonstrate how we can iterate fixed number of loop in mule 4 using dataweave

Below is the input you can see the size of the array is 6 but we need to iterate the list only 3 times on the basis of the total count

Input

{
 "totalcount": 5,
 "employees":
    [
      {
        "name":"Sam",
        "age":34
      },
       {
        "name":"Richard",
        "age":38
      },
      {
        "name":"Harry",
        "age":36
      },
       {
        "name":"Tom",
        "age":40
      },
      {
        "name":"David",
        "age":84
      },
      {
        "name":"Chris",
        "age":52
      }
    ]
}

Dataweave

%dw 2.0
output application/json
---
(payload.employees  map (()->{
FirstName: $.name,
age: $.age
})) [ 0 to payload.totalcount -3 ]

Output:

[
  {
    "FirstName": "Sam",
    "age": 34
  },
  {
    "FirstName": "Richard",
    "age": 38
  },
  {
    "FirstName": "Harry",
    "age": 36
  }
]