If you just want standard string formatting for each type,
switch field.Kind() ... can be replaced with record = append(record, fmt.Sprintf("%v", field)). for i := range inputs { value := reflect.ValueOf(inputs[i]) is better written as for _, input { value := reflect.ValueOf(input). If reflect.ValueOf proves to be a performance issue, I doubt it, you could instead write a switch matching each string input to a struct field. If you want to get extra fancy, implement fmt.Formatter for SalesData