public ActionResult <string> Reverse(int[] productIds)
 {
     try
     {
         if (productIds != null && productIds.Count() > 0)
         {
             ArrayOperator arrayOperator = new ArrayOperator();
             //Reversing the array
             arrayOperator.Reverse(productIds);
             //Returns the reversed array
             return(Content($"[{string.Join(",", productIds)}]"));
         }
         else
         {
             return(Content(string.Empty));
         }
     }
     catch (Exception ex)
     {
         return(BadRequest("Sorry! An error occurred while reversing the product!\nError:" + ex.Message));
     }
 }