I have below json as my input payload and I want to fetch groupvalue where groupname is b. How to do this in dataweave ?
[ { "groupName": "a", "groupvalue": "1234" }, { "groupName": "b", "groupvalue": "7890" } ]
If you are absolutely sure there is only one element in the array with groupName equal to "b":
%dw 2.0 output application/json --- (payload filter ($.groupName == "b") map ( $.groupvalue)) [0]
With your input I get the following output:
"7890"