Map function in Dataweave
Map function in Dataweave is used to iterate over array and output the result in to an array
Here is the below Example from which we want to extract the First name and Last name and append both string by space
Input:
{
"employee":[
{
"FirstName":"John",
"LastName":"Smith",
"Email":"[email protected]"
},
{
"FirstName":"Bob",
"LastName":"Stryf",
"Email":"[email protected]"
}
],
"Company":{
"name":"IBM"
}
}
We can write the below dataweave code to extract the First Name and Last Name using map operator and append using ++
%dw 2.0
application/json
---
{
"candidatedetails": payload.employee map((item,index) -> {
"fname":item.FirstName ++ " " ++ item.LastName
})
}
Result:
{
"candidatedetails": [
{
"fname":"John Smith"
},
{
"fname":"Bob Stryf"
}
]
}
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{
fname”:”John Smith”
“fname”:”Bob Stryf”
}
with out using the key how to make output like welcome john smith bobstryf
“Welcome “ ++ (payload pluck $ joinBy ” “)
%dw 2.0
output application/json
—
payload.employee map (“Welcome ” ++ $.FirstName ++ ” ” ++ $.LastName)
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