Merge pull request #244 from kdjinn/issue/243

add maxPages to catalog search parameters

Author: abuzuhri

Source/FikaAmazonAPI/Parameter/CatalogItems/ParameterSearchCatalogItems202204.cs

@@ -4,7 +4,7 @@
 
 namespace FikaAmazonAPI.Parameter.CatalogItems
 {
-    public class ParameterSearchCatalogItems202204 : ParameterBased
+    public class ParameterSearchCatalogItems202204 : PaginationParameter
     {
         public IList<string> identifiers { get; set; }
         public IList<string> marketplaceIds { get; set; } = new List<string>();
@@ -16,7 +16,6 @@ public class ParameterSearchCatalogItems202204 : ParameterBased
         public IList<string> brandNames { get; set; } = new List<string>();
         public IList<string> classificationIds { get; set; } = new List<string>();
         public string pageToken { get; set; }
-        public string keywordsLocale { get; set; }
-        public int? pageSize { get; set; } = 20;
+        public string keywordsLocale { get; set; }        
     }
 }

Source/FikaAmazonAPI/Parameter/PaginationParameter.cs

@@ -0,0 +1,12 @@
+using FikaAmazonAPI.AmazonSpApiSDK.Models.Token;
+using FikaAmazonAPI.Search;
+
+namespace FikaAmazonAPI.Parameter
+{
+    public class PaginationParameter : ParameterBased
+    {
+        public int? pageSize { get; set; } = 20;
+        [IgnoreToAddParameterAttribute]
+        public int? maxPages { get; set; } = 20;
+    }
+}

Source/FikaAmazonAPI/Services/CatalogItemService.cs

@@ -164,15 +164,17 @@ public AmazonSpApiSDK.Models.CatalogItems.V20220401.Item GetCatalogItem202204(Pa
             await CreateAuthorizedRequestAsync(CategoryApiUrls.SearchCatalogItems202204, RestSharp.Method.GET, param);
             var response = await ExecuteRequestAsync<ItemSearchResults>(RateLimitType.CatalogItems20220401_SearchCatalogItems);
             list.AddRange(response.Items);
+            var totalPages = 1;
             if (response.Pagination != null && !string.IsNullOrEmpty(response.Pagination.NextToken))
             {
                 var nextToken = response.Pagination.NextToken;
-                while (!string.IsNullOrEmpty(nextToken))
+                while (!string.IsNullOrEmpty(nextToken) && (!parameter.maxPages.HasValue || totalPages < parameter.maxPages.Value))
                 {
                     parameter.pageToken = nextToken;
                     var getItemNextPage = await SearchCatalogItemsByNextToken202204Async(parameter);
                     list.AddRange(getItemNextPage.Items);
                     nextToken = getItemNextPage.Pagination?.NextToken;
+                    totalPages++;
                 }
             }
             return list;