function tranformer(schema, data, operation)

    function _tranformer(object, schema, tableData)
        for fieldIndex, schemaField in ipairs(schema) do

            local tablePosObj = operation == "decode" and schemaField.name or fieldIndex
            local tablePosArr = operation == "decode" and fieldIndex or schemaField.name

            if not (schemaField.type == "array" and type(schemaField.items) == "table") then
                -- diference
                object[tablePosObj] = tableData[tablePosArr]
            else
                -- diference
                object[tablePosObj] = {}
                -- diference
                for fragmentDataIndex, fragmentData in ipairs(tableData[tablePosArr]) do
                    object[tablePosObj][fragmentDataIndex] = {}
                    _tranformer(object[tablePosObj][fragmentDataIndex], schemaField.items, fragmentData)
                end
            end
        end
        return object
    end

    return _tranformer({}, schema, data)
end

-- Serialize lua obj table to array
function encode(schema, data)
    return tranformer(schema, data, "encode")
end

-- Deserialize lua array to lua obj
function decode(schema, data)
    return tranformer(schema, data, "decode")
end

-- Expect library soon: https://github.com/taosx/