Updated to version 10.5.2

CryptoExchange.Net/Clients/SocketApiClient.cs

@@ -304,55 +304,9 @@ namespace CryptoExchange.Net.Clients
                 return new CallResult<UpdateSubscription>(new ServerError(new ErrorInfo(ErrorType.WebsocketPaused, "Socket is paused")));
             }
 
-            void HandleSubscriptionComplete(bool success, object? response)
+            var subscribeResult = await socketConnection.TrySubscribeAsync(subscription, true, ct).ConfigureAwait(false);
-            {
+            if (!subscribeResult)
-                if (!success)
+                return new CallResult<UpdateSubscription>(subscribeResult.Error!);
-                    return;
-
-                subscription.HandleSubQueryResponse(socketConnection, response);
-                subscription.Status = SubscriptionStatus.Subscribed;
-                if (ct != default)
-                {
-                    subscription.CancellationTokenRegistration = ct.Register(async () =>
-                    {
-                        _logger.CancellationTokenSetClosingSubscription(socketConnection.SocketId, subscription.Id);
-                        await socketConnection.CloseAsync(subscription).ConfigureAwait(false);
-                    }, false);
-                }
-            }
-
-            subscription.Status = SubscriptionStatus.Subscribing;
-            var subQuery = subscription.CreateSubscriptionQuery(socketConnection);
-            if (subQuery != null)
-            {
-                subQuery.OnComplete = () => HandleSubscriptionComplete(subQuery.Result?.Success ?? false, subQuery.Response);
-
-                // Send the request and wait for answer
-                var subResult = await socketConnection.SendAndWaitQueryAsync(subQuery, ct).ConfigureAwait(false);
-                if (!subResult)
-                {
-                    var isTimeout = subResult.Error is CancellationRequestedError;
-                    if (isTimeout && subscription.Status == SubscriptionStatus.Subscribed)
-                    {
-                        // No response received, but the subscription did receive updates. We'll assume success
-                    }
-                    else
-                    {
-                        _logger.FailedToSubscribe(socketConnection.SocketId, subResult.Error?.ToString());
-                        // If this was a server process error we still might need to send an unsubscribe to prevent messages coming in later
-                        subscription.Status = SubscriptionStatus.Pending;
-                        await socketConnection.CloseAsync(subscription).ConfigureAwait(false);
-                        return new CallResult<UpdateSubscription>(subResult.Error!);
-                    }
-                }
-
-                if (!subQuery.ExpectsResponse)
-                    HandleSubscriptionComplete(true, null);
-            }
-            else 
-            {
-                HandleSubscriptionComplete(true, null);
-            }
 
             _logger.SubscriptionCompletedSuccessfully(socketConnection.SocketId, subscription.Id);
             return new CallResult<UpdateSubscription>(new UpdateSubscription(socketConnection, subscription));

CryptoExchange.Net/CryptoExchange.Net.csproj

@@ -6,9 +6,9 @@
     <PackageId>CryptoExchange.Net</PackageId>
     <Authors>JKorf</Authors>
     <Description>CryptoExchange.Net is a base library which is used to implement different cryptocurrency (exchange) API's. It provides a standardized way of implementing different API's, which results in a very similar experience for users of the API implementations.</Description>
-    <PackageVersion>10.5.1</PackageVersion>
+    <PackageVersion>10.5.2</PackageVersion>
-    <AssemblyVersion>10.5.1</AssemblyVersion>
+    <AssemblyVersion>10.5.2</AssemblyVersion>
-    <FileVersion>10.5.1</FileVersion>
+    <FileVersion>10.5.2</FileVersion>
     <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
     <PackageTags>OKX;OKX.Net;Mexc;Mexc.Net;Kucoin;Kucoin.Net;Kraken;Kraken.Net;Huobi;Huobi.Net;CoinEx;CoinEx.Net;Bybit;Bybit.Net;Bitget;Bitget.Net;Bitfinex;Bitfinex.Net;Binance;Binance.Net;CryptoCurrency;CryptoCurrency Exchange;CryptoExchange.Net</PackageTags>
     <RepositoryType>git</RepositoryType>

CryptoExchange.Net/Sockets/Default/SocketConnection.cs

@@ -672,6 +672,8 @@ namespace CryptoExchange.Net.Sockets.Default
             }
 
             if (!processed)
+            {
+                if (!ApiClient.HandleUnhandledMessage(this, typeIdentifier, data))
                 {
                     lock (_listenersLock)
                     {
@@ -683,6 +685,7 @@ namespace CryptoExchange.Net.Sockets.Default
                     }
                 }
             }
+        }
 
         /// <summary>
         /// Connect the websocket
@@ -1082,40 +1085,8 @@ namespace CryptoExchange.Net.Sockets.Default
                 var taskList = new List<Task<CallResult>>();
                 foreach (var subscription in subList)
                 {
-                    subscription.ConnectionInvocations = 0;
+                    var subscribeTask = TrySubscribeAsync(subscription, false, default);
-                    if (!subscription.Active)
+                    taskList.Add(subscribeTask);
-                        // Can be closed during resubscribing
-                        continue;
-
-                    subscription.Status = SubscriptionStatus.Subscribing;
-                    var result = await ApiClient.RevitalizeRequestAsync(subscription).ConfigureAwait(false);
-                    if (!result)
-                    {
-                        _logger.FailedRequestRevitalization(SocketId, result.Error?.ToString());
-                        subscription.Status = SubscriptionStatus.Pending;
-                        return result;
-                    }
-
-                    var subQuery = subscription.CreateSubscriptionQuery(this);
-                    if (subQuery == null)
-                    {
-                        subscription.Status = SubscriptionStatus.Subscribed;
-                        continue;
-                    }
-                    subQuery.OnComplete = () =>
-                    {
-                        subscription.Status = subQuery.Result!.Success ? SubscriptionStatus.Subscribed : SubscriptionStatus.Pending;
-                        subscription.HandleSubQueryResponse(this, subQuery.Response);
-                    };
-
-                    taskList.Add(SendAndWaitQueryAsync(subQuery));
-
-                    if (!subQuery.ExpectsResponse)
-                    {
-                        // If there won't be an answer we can immediately set this
-                        subscription.Status = SubscriptionStatus.Subscribed;
-                        subscription.HandleSubQueryResponse(this, null);
-                    }
                 }
 
                 await Task.WhenAll(taskList).ConfigureAwait(false);
@@ -1132,6 +1103,61 @@ namespace CryptoExchange.Net.Sockets.Default
             return CallResult.SuccessResult;
         }
 
+        protected internal async Task<CallResult> TrySubscribeAsync(Subscription subscription, bool newSubscription, CancellationToken subCancelToken)
+        {
+            subscription.ConnectionInvocations = 0;
+
+            if (!newSubscription)
+            {
+                if (!subscription.Active)
+                    // Can be closed during resubscribing
+                    return CallResult.SuccessResult;
+
+                var result = await ApiClient.RevitalizeRequestAsync(subscription).ConfigureAwait(false);
+                if (!result)
+                {
+                    _logger.FailedRequestRevitalization(SocketId, result.Error?.ToString());
+                    subscription.Status = SubscriptionStatus.Pending;
+                    return result;
+                }
+            }
+
+            subscription.Status = SubscriptionStatus.Subscribing;
+            var subQuery = subscription.CreateSubscriptionQuery(this);
+            if (subQuery == null)
+            {
+                // No sub query, so successful
+                subscription.Status = SubscriptionStatus.Subscribed;
+                return CallResult.SuccessResult;
+            }
+
+            subQuery.OnComplete = () =>
+            {
+                subscription.Status = subQuery.Result!.Success ? SubscriptionStatus.Subscribed : SubscriptionStatus.Pending;
+                subscription.HandleSubQueryResponse(this, subQuery.Response);
+                if (newSubscription && subQuery.Result.Success && subCancelToken != default)
+                {
+                    subscription.CancellationTokenRegistration = subCancelToken.Register(async () =>
+                    {
+                        _logger.CancellationTokenSetClosingSubscription(SocketId, subscription.Id);
+                        await CloseAsync(subscription).ConfigureAwait(false);
+                    }, false);
+                }
+            };
+
+            var subQueryResult = await SendAndWaitQueryAsync(subQuery).ConfigureAwait(false);
+            if (!subQueryResult)
+            {
+                _logger.FailedToSubscribe(SocketId, subQueryResult.Error?.ToString());
+                // If this was a server process error or timeout we still send an unsubscribe to prevent messages coming in later
+                if (newSubscription)
+                    await CloseAsync(subscription).ConfigureAwait(false);
+                return new CallResult<UpdateSubscription>(subQueryResult.Error!);
+            }
+
+            return subQueryResult;
+        }
+
         internal async Task UnsubscribeAsync(Subscription subscription)
         {
             var unsubscribeRequest = subscription.CreateUnsubscriptionQuery(this);

CryptoExchange.Net/Sockets/Default/Subscription.cs

@@ -174,6 +174,14 @@ namespace CryptoExchange.Net.Sockets.Default
         {
             ConnectionInvocations++;
             TotalInvocations++;
+            if (SubscriptionQuery != null && !SubscriptionQuery.Completed && SubscriptionQuery.TimeoutBehavior == TimeoutBehavior.Succeed)
+            {
+                // The subscription query is one where it is successful if there is no error returned
+                // Since we've received a data update for the subscription we can assume the subscribe query was successful
+                // Call timeout to complete 
+                SubscriptionQuery.Timeout();
+            }
+
             return route.Handle(connection, receiveTime, originalData, data);
         }
 

CryptoExchange.Net/Sockets/Query.cs

@@ -127,8 +127,8 @@ namespace CryptoExchange.Net.Sockets
             }
             else
             {
-                Completed = true;
                 Result = CallResult.SuccessResult;
+                Completed = true;
                 _event.Set();
             }
         }
@@ -216,12 +216,12 @@ namespace CryptoExchange.Net.Sockets
             if (Completed)
                 return;
                         
-            Completed = true;
             if (TimeoutBehavior == TimeoutBehavior.Fail)
                 Result = new CallResult<THandlerResponse>(new TimeoutError());
             else
                 Result = new CallResult<THandlerResponse>(default, null, default);
 
+            Completed = true;
             _event.Set();
             OnComplete?.Invoke();
         }
@@ -234,6 +234,7 @@ namespace CryptoExchange.Net.Sockets
 
             Result = new CallResult<THandlerResponse>(error);
             Completed = true;
+
             _event.Set();
             OnComplete?.Invoke();
         }

README.md

@@ -67,6 +67,12 @@ Make a one time donation in a crypto currency of your choice. If you prefer to d
 Alternatively, sponsor me on Github using [Github Sponsors](https://github.com/sponsors/JKorf). 
 
 ## Release notes
+* Version 10.5.2 - 10 Feb 2026
+    * Added check for subscribe queries with TimeoutBehavior.Success to complete when subscription has received update
+    * Added call to ApiClient.HandleUnhandledMessage when no websocket message processor is found based on topic to allow additional processing
+    * Combined websocket connection subscribe and re-subscribe logic
+    * Set websocket query completed after setting Result
+
 * Version 10.5.1 - 10 Feb 2026
     * Fixed trading mode selection for futures listen key methods in FuturesUserDataTracker