Clan info with caching

WotBlitzStatistics.GraphQl/ObjectTypes/PlayerClanInfoObjectType.cs

@@ -1,4 +1,7 @@
-using HotChocolate.Types;
+using System.Threading;
+using GreenDonut;
+using HotChocolate.Resolvers;
+using HotChocolate.Types;
 using WotBlitzStatisticsPro.WgApiClient;
 using WotBlitzStatisticsPro.WgApiClient.Model;
 
@@ -10,10 +13,15 @@ namespace WotBlitzStatistics.GraphQl.ObjectTypes
         {
 			// ToDo: Cache clan info!
 			// https://hotchocolate.io/docs/dataloaders
-			descriptor.Field("clanInfo")
-                .Resolver(c => c.Service<IWargamingApiClient>()
-                    .GetClanInfo(c.Parent<ClanAccountInfo>().ClanId.Value));
-
-		}
+            descriptor.Field("clanInfo")
+                .Resolver(c =>
+                {
+                    var warGamingClient = c.Service<IWargamingApiClient>();
+                    var clanDataLoader = c.CacheDataLoader<long, ClanInfo>(
+                        "clanInfoById",
+                        clanId => warGamingClient.GetClanInfo(clanId));
+                    return clanDataLoader.LoadAsync(c.Parent<ClanAccountInfo>().ClanId.Value);
+                });
+        }
 	}
 }