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muledataweave

Mule dataweave transformation

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"
  }
]
Solution

  • 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"