diff --git a/veilid-core/src/rpc_processor/coders/operations/operation_inspect_value.rs b/veilid-core/src/rpc_processor/coders/operations/operation_inspect_value.rs
index 7d1ce70a..197943e9 100644
--- a/veilid-core/src/rpc_processor/coders/operations/operation_inspect_value.rs
+++ b/veilid-core/src/rpc_processor/coders/operations/operation_inspect_value.rs
@@ -156,10 +156,12 @@ impl RPCOperationInspectValueA {
 
         // Ensure seqs returned does not exceeed subkeys requested
         #[allow(clippy::unnecessary_cast)]
-        if self.seqs.len() > inspect_value_context.subkeys.len() as usize {
-            return Err(RPCError::protocol(
-                "InspectValue seqs length is greater than subkeys requested",
-            ));
+        if self.seqs.len() as u64 > inspect_value_context.subkeys.len() as u64 {
+            return Err(RPCError::protocol(format!(
+                "InspectValue seqs length is greater than subkeys requested: {} > {}",
+                self.seqs.len(),
+                inspect_value_context.subkeys.len()
+            )));
         }
 
         // Validate descriptor
diff --git a/veilid-core/src/storage_manager/inspect_value.rs b/veilid-core/src/storage_manager/inspect_value.rs
index 29a1824e..5a907098 100644
--- a/veilid-core/src/storage_manager/inspect_value.rs
+++ b/veilid-core/src/storage_manager/inspect_value.rs
@@ -156,7 +156,7 @@ impl StorageManager {
                     // Get number of subkeys from schema and ensure we are getting the
                     // right number of sequence numbers betwen that and what we asked for
                     #[allow(clippy::unnecessary_cast)]
-                    if answer.seqs.len() != descriptor_info.subkeys.len() as usize {
+                    if answer.seqs.len() as u64 != descriptor_info.subkeys.len() as u64 {
                         // Not the right number of sequence numbers
                         // Move to the next node
                         return Ok(NetworkResult::invalid_message(format!(
diff --git a/veilid-core/src/storage_manager/mod.rs b/veilid-core/src/storage_manager/mod.rs
index 09f4af44..6e02c6f1 100644
--- a/veilid-core/src/storage_manager/mod.rs
+++ b/veilid-core/src/storage_manager/mod.rs
@@ -771,7 +771,7 @@ impl StorageManager {
         #[allow(clippy::unnecessary_cast)]
         {
             assert!(
-                local_inspect_result.subkeys.len() as usize == local_inspect_result.seqs.len(),
+                local_inspect_result.subkeys.len() as u64 == local_inspect_result.seqs.len() as u64,
                 "mismatch between local subkeys returned and sequence number list returned"
             );
         }
@@ -824,8 +824,8 @@ impl StorageManager {
         #[allow(clippy::unnecessary_cast)]
         {
             assert_eq!(
-                result.inspect_result.subkeys.len() as usize,
-                result.fanout_results.len(),
+                result.inspect_result.subkeys.len() as u64,
+                result.fanout_results.len() as u64,
                 "mismatch between subkeys returned and fanout results returned"
             );
         }
diff --git a/veilid-flutter/example/integration_test/fixtures.dart b/veilid-flutter/example/integration_test/fixtures.dart
index 11617932..703e9a00 100644
--- a/veilid-flutter/example/integration_test/fixtures.dart
+++ b/veilid-flutter/example/integration_test/fixtures.dart
@@ -76,6 +76,7 @@ class DefaultFixture {
 
     _veilidUpdateSubscription = us.listen((update) {
       if (update is VeilidLog) {
+        // print(update.message);
       } else if (update is VeilidUpdateAttachment) {
       } else if (update is VeilidUpdateConfig) {
       } else if (update is VeilidUpdateNetwork) {
diff --git a/veilid-flutter/example/integration_test/test_table_db.dart b/veilid-flutter/example/integration_test/test_table_db.dart
index 136f667d..56674adf 100644
--- a/veilid-flutter/example/integration_test/test_table_db.dart
+++ b/veilid-flutter/example/integration_test/test_table_db.dart
@@ -16,7 +16,7 @@ Future<void> testOpenDeleteTableDb() async {
 
   final tdb = await Veilid.instance.openTableDB(testDb, 1);
   try {
-    expect(() async => await Veilid.instance.deleteTableDB(testDb),
+    await expectLater(() async => await Veilid.instance.deleteTableDB(testDb),
         throwsA(isA<VeilidAPIException>()));
   } finally {
     tdb.close();
diff --git a/veilid-flutter/example/test_driver/integration_test.dart b/veilid-flutter/example/test_driver/integration_test.dart
new file mode 100644
index 00000000..b38629cc
--- /dev/null
+++ b/veilid-flutter/example/test_driver/integration_test.dart
@@ -0,0 +1,3 @@
+import 'package:integration_test/integration_test_driver.dart';
+
+Future<void> main() => integrationDriver();
diff --git a/veilid-flutter/lib/veilid_state.dart b/veilid-flutter/lib/veilid_state.dart
index d5d2f366..f45cd07e 100644
--- a/veilid-flutter/lib/veilid_state.dart
+++ b/veilid-flutter/lib/veilid_state.dart
@@ -144,12 +144,12 @@ sealed class VeilidUpdate with _$VeilidUpdate {
     String? backtrace,
   }) = VeilidLog;
   const factory VeilidUpdate.appMessage({
-    @Uint8ListJsonConverter() required Uint8List message,
+    @Uint8ListJsonConverter.jsIsArray() required Uint8List message,
     TypedKey? sender,
     String? routeId,
   }) = VeilidAppMessage;
   const factory VeilidUpdate.appCall({
-    @Uint8ListJsonConverter() required Uint8List message,
+    @Uint8ListJsonConverter.jsIsArray() required Uint8List message,
     required String callId,
     TypedKey? sender,
     String? routeId,
diff --git a/veilid-flutter/lib/veilid_state.freezed.dart b/veilid-flutter/lib/veilid_state.freezed.dart
index 5759ae7b..4bba1f1d 100644
--- a/veilid-flutter/lib/veilid_state.freezed.dart
+++ b/veilid-flutter/lib/veilid_state.freezed.dart
@@ -1338,11 +1338,16 @@ mixin _$VeilidUpdate {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -1364,11 +1369,11 @@ mixin _$VeilidUpdate {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -1392,11 +1397,14 @@ mixin _$VeilidUpdate {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
@@ -1568,11 +1576,16 @@ class _$VeilidLogImpl implements VeilidLog {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -1597,11 +1610,11 @@ class _$VeilidLogImpl implements VeilidLog {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -1628,11 +1641,14 @@ class _$VeilidLogImpl implements VeilidLog {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
@@ -1735,7 +1751,7 @@ abstract class _$$VeilidAppMessageImplCopyWith<$Res> {
       __$$VeilidAppMessageImplCopyWithImpl<$Res>;
   @useResult
   $Res call(
-      {@Uint8ListJsonConverter() Uint8List message,
+      {@Uint8ListJsonConverter.jsIsArray() Uint8List message,
       Typed<FixedEncodedString43>? sender,
       String? routeId});
 }
@@ -1776,7 +1792,7 @@ class __$$VeilidAppMessageImplCopyWithImpl<$Res>
 @JsonSerializable()
 class _$VeilidAppMessageImpl implements VeilidAppMessage {
   const _$VeilidAppMessageImpl(
-      {@Uint8ListJsonConverter() required this.message,
+      {@Uint8ListJsonConverter.jsIsArray() required this.message,
       this.sender,
       this.routeId,
       final String? $type})
@@ -1786,7 +1802,7 @@ class _$VeilidAppMessageImpl implements VeilidAppMessage {
       _$$VeilidAppMessageImplFromJson(json);
 
   @override
-  @Uint8ListJsonConverter()
+  @Uint8ListJsonConverter.jsIsArray()
   final Uint8List message;
   @override
   final Typed<FixedEncodedString43>? sender;
@@ -1829,11 +1845,16 @@ class _$VeilidAppMessageImpl implements VeilidAppMessage {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -1858,11 +1879,11 @@ class _$VeilidAppMessageImpl implements VeilidAppMessage {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -1889,11 +1910,14 @@ class _$VeilidAppMessageImpl implements VeilidAppMessage {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
@@ -1974,14 +1998,14 @@ class _$VeilidAppMessageImpl implements VeilidAppMessage {
 
 abstract class VeilidAppMessage implements VeilidUpdate {
   const factory VeilidAppMessage(
-      {@Uint8ListJsonConverter() required final Uint8List message,
+      {@Uint8ListJsonConverter.jsIsArray() required final Uint8List message,
       final Typed<FixedEncodedString43>? sender,
       final String? routeId}) = _$VeilidAppMessageImpl;
 
   factory VeilidAppMessage.fromJson(Map<String, dynamic> json) =
       _$VeilidAppMessageImpl.fromJson;
 
-  @Uint8ListJsonConverter()
+  @Uint8ListJsonConverter.jsIsArray()
   Uint8List get message;
   Typed<FixedEncodedString43>? get sender;
   String? get routeId;
@@ -1997,7 +2021,7 @@ abstract class _$$VeilidAppCallImplCopyWith<$Res> {
       __$$VeilidAppCallImplCopyWithImpl<$Res>;
   @useResult
   $Res call(
-      {@Uint8ListJsonConverter() Uint8List message,
+      {@Uint8ListJsonConverter.jsIsArray() Uint8List message,
       String callId,
       Typed<FixedEncodedString43>? sender,
       String? routeId});
@@ -2044,7 +2068,7 @@ class __$$VeilidAppCallImplCopyWithImpl<$Res>
 @JsonSerializable()
 class _$VeilidAppCallImpl implements VeilidAppCall {
   const _$VeilidAppCallImpl(
-      {@Uint8ListJsonConverter() required this.message,
+      {@Uint8ListJsonConverter.jsIsArray() required this.message,
       required this.callId,
       this.sender,
       this.routeId,
@@ -2055,7 +2079,7 @@ class _$VeilidAppCallImpl implements VeilidAppCall {
       _$$VeilidAppCallImplFromJson(json);
 
   @override
-  @Uint8ListJsonConverter()
+  @Uint8ListJsonConverter.jsIsArray()
   final Uint8List message;
   @override
   final String callId;
@@ -2100,11 +2124,16 @@ class _$VeilidAppCallImpl implements VeilidAppCall {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -2129,11 +2158,11 @@ class _$VeilidAppCallImpl implements VeilidAppCall {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -2160,11 +2189,14 @@ class _$VeilidAppCallImpl implements VeilidAppCall {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
@@ -2245,7 +2277,7 @@ class _$VeilidAppCallImpl implements VeilidAppCall {
 
 abstract class VeilidAppCall implements VeilidUpdate {
   const factory VeilidAppCall(
-      {@Uint8ListJsonConverter() required final Uint8List message,
+      {@Uint8ListJsonConverter.jsIsArray() required final Uint8List message,
       required final String callId,
       final Typed<FixedEncodedString43>? sender,
       final String? routeId}) = _$VeilidAppCallImpl;
@@ -2253,7 +2285,7 @@ abstract class VeilidAppCall implements VeilidUpdate {
   factory VeilidAppCall.fromJson(Map<String, dynamic> json) =
       _$VeilidAppCallImpl.fromJson;
 
-  @Uint8ListJsonConverter()
+  @Uint8ListJsonConverter.jsIsArray()
   Uint8List get message;
   String get callId;
   Typed<FixedEncodedString43>? get sender;
@@ -2367,11 +2399,16 @@ class _$VeilidUpdateAttachmentImpl implements VeilidUpdateAttachment {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -2396,11 +2433,11 @@ class _$VeilidUpdateAttachmentImpl implements VeilidUpdateAttachment {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -2427,11 +2464,14 @@ class _$VeilidUpdateAttachmentImpl implements VeilidUpdateAttachment {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
@@ -2640,11 +2680,16 @@ class _$VeilidUpdateNetworkImpl implements VeilidUpdateNetwork {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -2669,11 +2714,11 @@ class _$VeilidUpdateNetworkImpl implements VeilidUpdateNetwork {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -2700,11 +2745,14 @@ class _$VeilidUpdateNetworkImpl implements VeilidUpdateNetwork {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
@@ -2888,11 +2936,16 @@ class _$VeilidUpdateConfigImpl implements VeilidUpdateConfig {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -2917,11 +2970,11 @@ class _$VeilidUpdateConfigImpl implements VeilidUpdateConfig {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -2948,11 +3001,14 @@ class _$VeilidUpdateConfigImpl implements VeilidUpdateConfig {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
@@ -3152,11 +3208,16 @@ class _$VeilidUpdateRouteChangeImpl implements VeilidUpdateRouteChange {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -3181,11 +3242,11 @@ class _$VeilidUpdateRouteChangeImpl implements VeilidUpdateRouteChange {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -3212,11 +3273,14 @@ class _$VeilidUpdateRouteChangeImpl implements VeilidUpdateRouteChange {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
@@ -3440,11 +3504,16 @@ class _$VeilidUpdateValueChangeImpl implements VeilidUpdateValueChange {
     required TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)
         log,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appMessage,
-    required TResult Function(@Uint8ListJsonConverter() Uint8List message,
-            String callId, Typed<FixedEncodedString43>? sender, String? routeId)
+    required TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)
         appCall,
     required TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)
@@ -3469,11 +3538,11 @@ class _$VeilidUpdateValueChangeImpl implements VeilidUpdateValueChange {
     TResult? Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult? Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult? Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
     TResult? Function(
-            @Uint8ListJsonConverter() Uint8List message,
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
             String callId,
             Typed<FixedEncodedString43>? sender,
             String? routeId)?
@@ -3500,11 +3569,14 @@ class _$VeilidUpdateValueChangeImpl implements VeilidUpdateValueChange {
     TResult Function(
             VeilidLogLevel logLevel, String message, String? backtrace)?
         log,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message,
+    TResult Function(@Uint8ListJsonConverter.jsIsArray() Uint8List message,
             Typed<FixedEncodedString43>? sender, String? routeId)?
         appMessage,
-    TResult Function(@Uint8ListJsonConverter() Uint8List message, String callId,
-            Typed<FixedEncodedString43>? sender, String? routeId)?
+    TResult Function(
+            @Uint8ListJsonConverter.jsIsArray() Uint8List message,
+            String callId,
+            Typed<FixedEncodedString43>? sender,
+            String? routeId)?
         appCall,
     TResult Function(AttachmentState state, bool publicInternetReady,
             bool localNetworkReady)?
diff --git a/veilid-flutter/lib/veilid_state.g.dart b/veilid-flutter/lib/veilid_state.g.dart
index b23f7504..4f454466 100644
--- a/veilid-flutter/lib/veilid_state.g.dart
+++ b/veilid-flutter/lib/veilid_state.g.dart
@@ -133,7 +133,8 @@ Map<String, dynamic> _$$VeilidLogImplToJson(_$VeilidLogImpl instance) =>
 _$VeilidAppMessageImpl _$$VeilidAppMessageImplFromJson(
         Map<String, dynamic> json) =>
     _$VeilidAppMessageImpl(
-      message: const Uint8ListJsonConverter().fromJson(json['message']),
+      message:
+          const Uint8ListJsonConverter.jsIsArray().fromJson(json['message']),
       sender: json['sender'] == null
           ? null
           : Typed<FixedEncodedString43>.fromJson(json['sender']),
@@ -144,7 +145,8 @@ _$VeilidAppMessageImpl _$$VeilidAppMessageImplFromJson(
 Map<String, dynamic> _$$VeilidAppMessageImplToJson(
         _$VeilidAppMessageImpl instance) =>
     <String, dynamic>{
-      'message': const Uint8ListJsonConverter().toJson(instance.message),
+      'message':
+          const Uint8ListJsonConverter.jsIsArray().toJson(instance.message),
       'sender': instance.sender?.toJson(),
       'route_id': instance.routeId,
       'kind': instance.$type,
@@ -152,7 +154,8 @@ Map<String, dynamic> _$$VeilidAppMessageImplToJson(
 
 _$VeilidAppCallImpl _$$VeilidAppCallImplFromJson(Map<String, dynamic> json) =>
     _$VeilidAppCallImpl(
-      message: const Uint8ListJsonConverter().fromJson(json['message']),
+      message:
+          const Uint8ListJsonConverter.jsIsArray().fromJson(json['message']),
       callId: json['call_id'] as String,
       sender: json['sender'] == null
           ? null
@@ -163,7 +166,8 @@ _$VeilidAppCallImpl _$$VeilidAppCallImplFromJson(Map<String, dynamic> json) =>
 
 Map<String, dynamic> _$$VeilidAppCallImplToJson(_$VeilidAppCallImpl instance) =>
     <String, dynamic>{
-      'message': const Uint8ListJsonConverter().toJson(instance.message),
+      'message':
+          const Uint8ListJsonConverter.jsIsArray().toJson(instance.message),
       'call_id': instance.callId,
       'sender': instance.sender?.toJson(),
       'route_id': instance.routeId,
diff --git a/veilid-flutter/run_integration_tests_web.sh b/veilid-flutter/run_integration_tests_web.sh
new file mode 100755
index 00000000..c74f9fdf
--- /dev/null
+++ b/veilid-flutter/run_integration_tests_web.sh
@@ -0,0 +1,5 @@
+#!/bin/bash
+echo Ensure chromedriver is running on port 4444 and you have compiled veilid-wasm with wasm_build.sh
+pushd example 2>/dev/null
+flutter drive --driver=test_driver/integration_test.dart --target=integration_test/app_test.dart -d chrome $@
+popd 2>/dev/null
diff --git a/veilid-wasm/src/lib.rs b/veilid-wasm/src/lib.rs
index ee439284..c2a9b6ca 100644
--- a/veilid-wasm/src/lib.rs
+++ b/veilid-wasm/src/lib.rs
@@ -644,6 +644,7 @@ pub fn routing_context_inspect_dht_record(
         let res = routing_context
             .inspect_dht_record(key, subkeys, scope)
             .await?;
+
         APIResult::Ok(res)
     })
 }
@@ -695,7 +696,7 @@ pub fn import_remote_private_route(blob: String) -> Promise {
 
 #[wasm_bindgen()]
 pub fn release_private_route(route_id: String) -> Promise {
-    let route_id: veilid_core::RouteId = veilid_core::deserialize_json(&route_id).unwrap();
+    let route_id: veilid_core::RouteId = veilid_core::RouteId::try_decode(&route_id).unwrap();
     wrap_api_future_void(async move {
         let veilid_api = get_veilid_api()?;
         veilid_api.release_private_route(route_id)?;