MuleSoft transform gives error while transforming using DWL for JSON payload - mule

Question

Im am new to MuleSoft.I am trying to transform a JSON payload,using transform.
I want to transform my payload as below
Input:
{
"ResponseStatus": {
"Status": "SUCCESS",
"StatusText": "SUCCESS"
},
"Processes": {
"Process": [
{
"ProcessId": "1234567",
"ProcessProperties": {
"Property": [
{
"Name": "XXXXXXXXXXX",
"Value": "11111111",
"Desc": "YYYYYYYY"
},
{
"Name": "AAAAAAAAA",
"Value": "2222222",
"Desc": "BBBBBBBB"
},
{
"Name": "QQQQQQQQQ",
"Value": "#######",
"Desc": "CCCCCCCC"
},
{
"Name": "NNNNNNN",
"Value": "IIIIIIII",
"Desc": "UYUYUYUY"
}
]
},
"EditMode": "CCCCCC",
"ProcessType": "ABCD",
"AppName": "VFVFVGBG",
"StatusHistory": {
"STS": [
{
"Sts": "COMPLETED"
}
]
}
}
]
}
}
Output:
[
{
"ProcessId": "1234567",
"AAAAAAAAA": "2222222",
"QQQQQQQQQ": "#######"
}
]
I have read DWL reference from below Mulesoft link.Also reffered this SO link.
Below is what I have tried so far,
%dw 1.0
%output application/json
---
{
"ProcessId": (payload.Processes.Process.ProcessId)[0],
AAAAAAAAA: {
(payload.Processes.Process.ProcessProperties.Property mapObject {
($.Name):$.Value when $.Name =="AAAAAAAAA" otherwise ""
})
},
QQQQQQQQQ: {
(payload.Processes.Process.ProcessProperties.Property mapObject {
($.Name):$.Value when $.Name =="QQQQQQQQQ" otherwise ""
})
}
}
I am still not able to get the desired output.
It gives me "Cannot coerce a :array to a :key"
Can anyone please help me?

Answer 1

The "property" json element in your input json is "Array",which it is not able to parse to a single value.
Please try below snippet and let me know if that gives your deisred o/p.
payload.Processes.Process map (
(val , index) ->
{"ProcessId":(payload.Processes.Process.ProcessId)[0]
,
(val.ProcessProperties.Property map {
(($.Name) : $.Value) when $.Name =='AAAAAAAAA' }
),
(val.ProcessProperties.Property map {
(($.Name) : $.Value) when $.Name =='QQQQQQQQQ' }
)
}
)