Merge pull request #269 from notion-dotnet/244-property_item-objects-now-return-a-type-next_url-and-id

Add support for id, next_url & property_item prop to PropertyItem object ✨

Author: KoditkarVedant

Src/Notion.Client/Models/PropertyItems/IPropertyItemObject.cs

@@ -13,5 +13,14 @@ public interface IPropertyItemObject
 
         [JsonProperty("type")]
         string Type { get; }
+
+        [JsonProperty("id")]
+        string Id { get; }
+
+        /// <summary>
+        /// Only present in paginated property values with another page of results. If present, the url the user can request to get the next page of results.
+        /// </summary>
+        [JsonProperty("next_url")]
+        string NextURL { get; }
     }
 }

Src/Notion.Client/Models/PropertyItems/ListPropertyItem.cs

@@ -4,14 +4,16 @@
 
 namespace Notion.Client
 {
-    [JsonConverter(typeof(JsonSubtypes), "type")]
-    [JsonSubtypes.KnownSubType(typeof(RollupPropertyItem), "rollup")]
-    [JsonSubtypes.FallBackSubType(typeof(ListPropertyItem))]
     public class ListPropertyItem : IPropertyItemObject
     {
         public string Object => "list";
+
         public virtual string Type { get; set; }
 
+        public string Id { get; set; }
+
+        public string NextURL { get; set; }
+
         [JsonProperty("results")]
         public IEnumerable<SimplePropertyItem> Results { get; set; }
 
@@ -20,5 +22,8 @@ public class ListPropertyItem : IPropertyItemObject
 
         [JsonProperty("next_cursor")]
         public string NextCursor { get; set; }
+
+        [JsonProperty("property_item")]
+        public SimplePropertyItem PropertyItem { get; set; }
     }
 }

Src/Notion.Client/Models/PropertyItems/RollupPropertyItem.cs

@@ -27,5 +27,9 @@ public abstract class SimplePropertyItem : IPropertyItemObject
         public string Object => "property_item";
 
         public abstract string Type { get; }
+
+        public string Id { get; set; }
+
+        public string NextURL { get; set; }
     }
 }