private void ProcessRequest(int threshold)
 {
     Console.Write("Enter the ID of the stock you would like to make a request for: ");
     while (true)
     {
         var s = Console.ReadLine();
         if (Int32.TryParse(s, out int productID))
         {
             try
             {
                 c.CreateRequest(currentStoreID, productID, threshold);
                 Console.WriteLine($"Successfully made a request for " + c.GetProductNameByID(productID));
                 break;
             }
             catch (Exception e)
             {
                 Console.WriteLine(e.Message);
             }
         }
         else
         {
             if (!(s == "" || s == "\n"))
             {
                 Console.WriteLine("You inserted an invalid ID.");
             }
             else
             {
                 break;
             }
         }
     }
 }