Unable to filter Array of objects having dynamic keys using dataweave - mule

Question

I want to filter this array of object based on EmployeeStatus which should be only Resigned and Terminated but not active. Here the keys are different for each object and hence I am unable to apply logic like item.key.EmployeeStaus=="Resigned" or "Terminated" .Any suggestions or hint would be helpful for me.
Input Payload
[
{
"626433000000196190": [
{
"EmailID": "rubyrichards#zylker.com",
"Employeestatus": "Resigned"
}
]
},
{
"626433000000196184": [
{
"EmailID": "morganfinely#zylker.com",
"Employeestatus": "Active"
}
]
},
{
"626433000000196178": [
{
"EmailID": "jenniferjackson#zylker.com",
"Employeestatus": "Active"
}
]
},
{
"626433000000196166": [
{
"EmailID": "daveduken#zylker.com",
"Employeestatus": "Terminated"
}
]
}
]
Required Output
[
{
"EmailID": "rubyrichards#zylker.com",
"Employeestatus": "Resigned"
},
{
"EmailID": "daveduken#zylker.com",
"Employeestatus": "Terminated
}
]

Answer 1

Maybe something like this:
Input
[
{
"626433000000196190": [
{
"EmailID": "rubyrichards#zylker.com",
"Employeestatus": "Resigned"
}
]
},
{
"626433000000196184": [
{
"EmailID": "morganfinely#zylker.com",
"Employeestatus": "Active"
}
]
},
{
"626433000000196178": [
{
"EmailID": "jenniferjackson#zylker.com",
"Employeestatus": "Active"
}
]
},
{
"626433000000196166": [
{
"EmailID": "daveduken#zylker.com",
"Employeestatus": "Terminated"
}
]
}
]
Script
%dw 2.0
output application/json
---
flatten(payload map
($ mapObject {
b: $ filter ($.Employeestatus != "Active")
}).b -[])
Output
[
{
"EmailID": "rubyrichards#zylker.com",
"Employeestatus": "Resigned"
},
{
"EmailID": "daveduken#zylker.com",
"Employeestatus": "Terminated"
}
]

Answer 2

Here's another take:
%dw 2.0
output application/json
var data = [
{
"626433000000196190": [
{
"EmailID": "rubyrichards#zylker.com",
"Employeestatus": "Resigned"
}
]
},
{
"626433000000196184": [
{
"EmailID": "morganfinely#zylker.com",
"Employeestatus": "Active"
}
]
},
{
"626433000000196178": [
{
"EmailID": "jenniferjackson#zylker.com",
"Employeestatus": "Active"
}
]
},
{
"626433000000196166": [
{
"EmailID": "daveduken#zylker.com",
"Employeestatus": "Terminated"
}
]
}
]
---
flatten({(data)} pluck $) filter not ($.Employeestatus == "Active")
I 'll add explanations later on.
EDIT: Here's the explanation and links to the DW documentation:
I make use of the dynamic elements feature {(data)} to destroy the array and collapse all enclosed objects into an object.
I then use pluck to get just the values in an array.
I make use of flatten to collapse the first level of sub-arrays, because the values we just plucked are also arrays. You now have a flat array.
Now I make use of filter to remove eliminate all records that fail the assertion to the right.

Answer 3

You can filter the records by transversing the structure. First an array, using map. Each element is an object with a single key, so let's use mapObject, then filter. I didn't try to remove the empty arrays.
%dw 2.0
output application/json skipNullOn="everywhere"
fun filterEmployeeStatus(e) = e filter ($.Employeestatus == "Resigned" or $.Employeestatus == "Terminated")
---
payload map
( $ mapObject ((value, key, index) -> (key): filterEmployeeStatus(value) ) )
Output:
[
{
"626433000000196190": [
{
"EmailID": "rubyrichards#zylker.com",
"Employeestatus": "Resigned"
}
]
},
{
"626433000000196184": [
]
},
{
"626433000000196178": [
]
},
{
"626433000000196166": [
{
"EmailID": "daveduken#zylker.com",
"Employeestatus": "Terminated"
}
]
}
]