Hi , Can you replace the following:   { "operation": "shift", "spec": { "properties": { "*": { // simple match. Put the value '4' in the output under the "Rating" field "title": "Questions[&1].question", "type": { "number": { "#select": "Questions[&3].type" }, "string": { "#textarea": "Questions[&3].type" }, "array": { "#multiselect": "Questions[&3].type" } }, "$": "Questions[&1].id" } } with the following spec: { "operation": "shift", "spec": { "properties": { "*": { // simple match. Put the value '4' in the output under the "Rating" field "title": "Questions_&1.question", "type": { "number": { "#select": "Questions_&3.type" }, "string": { "#textarea": "Questions_&3.type" }, "array": { "#multiselect": "Questions_&3.type" } }, "$": "Questions_&1.id" } } } } , { "operation": "shift", "spec": { "*": "&", "Questions_*": "Questions[]" } }   Reference : https://stackoverflow.com/questions/70394715/remove-null-from-array-using-jolt   If that helps please accept solution. Thanks     ... View more

Hi, Can you explain on what basis are you trying to extract "options":  9876 & 9875 only  and not 9874? Is it based on the index as in the first option and the second option only and ignore anything after?   ... View more

Im not sure what you specified is makes sense  because you would have two keys with the same name "Details" but different values. I assume what you want is this:     { "Details": { "0": { "test1": "test output", "test2": "test output", "id": "first", "name": "the first one" }, "1": { "test1": "test output", "test2": "test output", "id": "second", "name": "the second one" } } }   In this case the spec would be like this:   [ { //package all test fields into an outer object "operation": "shift", "spec": { "test*": "outer.&", "Details": "Details" } }, { // Insert each outer object into Details element 0,1,.. "operation": "shift", "spec": { "Details": { "*": { "*": "Details.&1.&", "@(3,outer)": "Details.&1.outer" } } } }, { //Bucket each outer object (test1, test2...) into each details element "operation": "shift", "spec": { "Details": { "*": { "*": "Details.&1.&", "outer": { "*": { "@": "Details.&3.&" } } } } } } ]   Not sure if this is the best way, if someone knows a better way please  provide your suggestion. If that answers your question please accept solution. Thanks   ... View more

Hi,   You have not specified the desired output, but would the following give you what you are looking for: [ { "operation": "shift", "spec": { "Details": { "*": { "*": "Details[#2].&" } }, "*": "outer[].&" } }, { "operation": "shift", "spec": { "Details": "Details", "outer": { "*": { "*": "Details[&1].&" } } } } ] if that helps please accept solution. Thanks ... View more

hi, You can take a look into ForkEnrichment and JoinEnrichment processors : https://nifi.apache.org/docs/nifi-docs/components/org.apache.nifi/nifi-standard-nar/1.20.0/org.apache.nifi.processors.standard.JoinEnrichment/additionalDetails.html If that helps, please accept solution. Thanks ... View more