Test

ArchiSteamFarm/ArchiWebHandler.cs

@@ -494,11 +494,12 @@ namespace ArchiSteamFarm {
 				while (true) {
 					Steam.InventoryResponse response = await WebBrowser.UrlGetToJsonResultRetry<Steam.InventoryResponse>(request + (startAssetID > 0 ? "&start_assetid=" + startAssetID : "")).ConfigureAwait(false);
 
-					if (response == null) {
+					if (response?.Success != true) {
 						return null;
 					}
 
 					if ((response.Assets == null) || (response.Assets.Count == 0) || (response.Descriptions == null) || (response.Descriptions.Count == 0)) {
+						// Empty inventory
 						return result;
 					}
 

ArchiSteamFarm/JSON/Steam.cs

@@ -372,6 +372,7 @@ namespace ArchiSteamFarm.JSON {
 
 			internal ulong LastAssetID { get; private set; }
 			internal bool MoreItems { get; private set; }
+			internal bool Success { get; private set; }
 
 			[JsonProperty(PropertyName = "last_assetid", Required = Required.DisallowNull)]
 			private string LastAssetIDString {
@@ -395,6 +396,11 @@ namespace ArchiSteamFarm.JSON {
 				set => MoreItems = value > 0;
 			}
 
+			[JsonProperty(PropertyName = "success", Required = Required.Always)]
+			private byte SuccessNumber {
+				set => Success = value > 0;
+			}
+
 			// Deserialized from JSON
 			private InventoryResponse() { }
 

ArchiSteamFarm/WebBrowser.cs

@@ -143,6 +143,8 @@ namespace ArchiSteamFarm {
 				return default;
 			}
 
+			ArchiLogger.LogGenericDebug("JSON: <" + json + ">");
+
 			try {
 				return JsonConvert.DeserializeObject<T>(json);
 			} catch (JsonException e) {