How to create dynamic JSON. Filter data and create appropriate JSON objects key and values pairs

Question

How to create dynamic JSON as per input. Filter data and create appropriate JSON objects key and values pairs
Below is the database.

Below is the code which had tried but won't work...

success: function (data) {
    //lenght
    data.value.length
    // console.log(data);
    //HC list JSON
    empData = '[';
    $.each(data.value, function (index, item) {
        var dataLen = data.value.length;

        empData += `{`

        if (item.STATUS == 'Active') {

            if (item.NODE == 'Testing') {
                empData += `"DDM_CO2" : {
                        "DESIGNATION": "${item.DESIGNATION}",
                        "EMPLOYMENT": "${item.EMPLOYMENT}",                     
                        "GENDER": "${item.GENDER}",                     
                        "Name1": "${item.Name1}",
                        "ROLE": "${item.ROLE}"                    
                    },`
            } else if (item.NODE == 'Devlopment') {
                empData += `"GPH" : {
                        "DESIGNATION": "${item.DESIGNATION}",
                        "EMPLOYMENT": "${item.EMPLOYMENT}",                     
                        "GENDER": "${item.GENDER}",                     
                        "Name1": "${item.Name1}",
                        "ROLE": "${item.ROLE}"
                    }`
            }
        }
    });
    empData += ']';
    empData = JSON.parse(empData);
    console.log(empData);
    //HC list JSON END              

},

Answer 1

Something like this should work

function (data) {
    //create array to store emp objects
    var empData = new Array();
    $.each(data.value, function (index, item) {

        if (item.STATUS == 'Active') {
            if (item.NODE == 'Testing') {
                //create custom object 
                var emp = {
                    DDM_CO2: {
                        DESIGNATION: item.DESIGNATION,
                        EMPLOYMENT: item.EMPLOYMENT
                        //etc: item.etc
                        //etc: item.etc
                        //etc: item.etc
                    }
                };
                //add to array
                empData.push(emp);
            } else if (item.NODE == 'Devlopment') {
                var emp = {
                    GPH: {
                        DESIGNATION: item.DESIGNATION,
                        EMPLOYMENT: item.EMPLOYMENT,
                        GENDER: item.GENDER,
                        Name1: item.Name1,
                        ROLE: item.ROLE
                    }
                };
                empData.push(emp);
            }
        }
    }