public static AmazonItem[] GetItems(string[] ASINs)
        {
            AmazonItem[] items = new AmazonItem[ASINs.Length];

            //max 10 items allowed per request, do multiple requests
            for (int i = 0; i < ASINs.Length; i += 10)
            {
                // create an array with 10 ASINs
                string[] ASINArray = new string[10];
                for (int j = i; j < i + 10 && j < ASINs.Length; j++)
                {
                    ASINArray[j] = ASINs[i + j];
                }

                // get response from amazon api
                Item[] returnedItems = DoAmazonItemLookup(ASINArray);

                // create AmazonItem objects from Item objects and add them to the array
                // if there is a problem with any items, or if there are duplicates, amazon will return less items. so if ASINs do not match, skip ASIN (increase skipped)
                int skipped = 0;
                for (int k = 0; k < returnedItems.Length; k++)
                {
                    while (ASINs[i + k + skipped] != returnedItems[k].ASIN)
                    {
                        skipped++;
                    }

                    items[i + k + skipped] = new AmazonItem(returnedItems[k]);
                }
            }

            return(items);
        }
        public static AmazonItem GetItem(string ASIN)
        {
            AmazonItem foundItem = null;

            // make an array with only one string and use it to find items on amazon
            Item[] returnedItems = DoAmazonItemLookup(new string[] { ASIN });

            if (returnedItems == null)
            {
                // request did not return any items, a product with this ASIN doesnt exist
                return(null);
            }

            //create AmazonItem object from returned Item object
            foundItem = new AmazonItem(returnedItems[0]);

            return(foundItem);
        }