Hi, The string you are getting is not a valid json, so you need to use ExecuteScript Processor to parse the string and convert into array and then convert the array into json array. You can convert this string into array by removing curly brackets and then do split(',') then you can convert the array into json using something like: https://www.javaguides.net/2019/07/convert-set-to-json-array-using-jackson.html Pass the converted Json Array as new flowfile from the ExecuteScript Processor. Lets assume that your json array looks like this: ["1","1","1","3465689","B4:E6:2D:34:E1:D9"...] Then you use Json Jolt Processor and pass the following Jolt Spec: [ { "operation": "shift", "spec": { "*": { "@0": "Value-&0" } } } ] which will give the new flowfile as follows: { "Value-0" : "1", "Value-1" : "1", "Value-2" : "1", "Value-3" : "3465689", "Value-4" : "B4:E6:2D:34:E1:D9" ... } Hope that helps. If it does please accept solution. Thanks Samer
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