Added specific logging for user cancellation on rest requests instead of generic warning log

* Fix memory leak in AsyncAutoResetEvent

CancellationTokenRegistration MUST be disposed, as the CancellationToken passed is saved for the lifetime of the Client, and registrations build up forever.

CryptoExchange.Net.UnitTests/AsyncResetEventTests.cs

@@ -106,6 +106,7 @@ namespace CryptoExchange.Net.UnitTests
             for(var i = 1; i <= 10; i++)
             {
                 evnt.Set();
+                await Task.Delay(1); // Wait for the continuation.
                 Assert.That(10 - i == waiters.Count(w => w.Status != TaskStatus.RanToCompletion));
             }
 

CryptoExchange.Net.UnitTests/RestClientTests.cs

@@ -176,12 +176,12 @@ namespace CryptoExchange.Net.UnitTests
 
             for (var i = 0; i < requests + 1; i++)
             {
-                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);             
+                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);             
                 Assert.That(i == requests? triggered : !triggered);
             }
             triggered = false;
             await Task.Delay((int)Math.Round(perSeconds * 1000) + 10);
-            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1,  RateLimitingBehaviour.Wait, default);
+            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1,  RateLimitingBehaviour.Wait, null, default);
             Assert.That(!triggered);
         }
 
@@ -201,7 +201,7 @@ namespace CryptoExchange.Net.UnitTests
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
             for (var i = 0; i < 2; i++)
             {
-                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);
+                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);
                 bool expected = i == 1 ? (expectLimiting ? evnt.DelayTime > TimeSpan.Zero : evnt == null) : evnt == null;
                 Assert.That(expected);
             }
@@ -222,9 +222,9 @@ namespace CryptoExchange.Net.UnitTests
             RateLimitEvent evnt = null;
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
 
-            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);
+            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(evnt == null);
-            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition2, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);
+            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition2, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(expectLimiting ? evnt != null : evnt == null);
         }
 
@@ -243,12 +243,12 @@ namespace CryptoExchange.Net.UnitTests
 
             for (var i = 0; i < requests + 1; i++)
             {
-                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);
+                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);
                 Assert.That(i == requests ? triggered : !triggered);
             }
             triggered = false;
             await Task.Delay((int)Math.Round(perSeconds * 1000) + 10);
-            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);
+            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(!triggered);
         }
 
@@ -266,7 +266,7 @@ namespace CryptoExchange.Net.UnitTests
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
             for (var i = 0; i < 2; i++)
             {
-                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);
+                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);
                 bool expected = i == 1 ? (expectLimited ? evnt.DelayTime > TimeSpan.Zero : evnt == null) : evnt == null;
                 Assert.That(expected);
             }
@@ -286,7 +286,7 @@ namespace CryptoExchange.Net.UnitTests
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
             for (var i = 0; i < 2; i++)
             {
-                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);
+                var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);
                 bool expected = i == 1 ? (expectLimited ? evnt.DelayTime > TimeSpan.Zero : evnt == null) : evnt == null;
                 Assert.That(expected);
             }
@@ -309,9 +309,9 @@ namespace CryptoExchange.Net.UnitTests
             RateLimitEvent evnt = null;
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
 
-            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, "https://test.com", key1, 1, RateLimitingBehaviour.Wait, default);
+            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, "https://test.com", key1, 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(evnt == null);
-            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition2, "https://test.com", key2, 1, RateLimitingBehaviour.Wait, default);
+            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition2, "https://test.com", key2, 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(expectLimited ? evnt != null : evnt == null);
         }
 
@@ -328,9 +328,9 @@ namespace CryptoExchange.Net.UnitTests
             RateLimitEvent evnt = null;
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
 
-            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, default);
+            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(evnt == null);
-            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition2, "https://test.com", null, 1, RateLimitingBehaviour.Wait, default);
+            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition2, "https://test.com", null, 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(expectLimited ? evnt != null : evnt == null);
         }
 
@@ -348,9 +348,9 @@ namespace CryptoExchange.Net.UnitTests
             RateLimitEvent evnt = null;
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
 
-            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, host1, "123", 1, RateLimitingBehaviour.Wait, default);
+            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, host1, "123", 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(evnt == null);
-            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, host2, "123", 1, RateLimitingBehaviour.Wait, default);
+            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Request, requestDefinition1, host2, "123", 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(expectLimited ? evnt != null : evnt == null);
         }
 
@@ -365,9 +365,9 @@ namespace CryptoExchange.Net.UnitTests
             RateLimitEvent evnt = null;
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
 
-            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Connection, new RequestDefinition("1", HttpMethod.Get), host1, "123", 1, RateLimitingBehaviour.Wait, default);
+            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Connection, new RequestDefinition("1", HttpMethod.Get), host1, "123", 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(evnt == null);
-            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Connection, new RequestDefinition("1", HttpMethod.Get), host2, "123", 1, RateLimitingBehaviour.Wait, default);
+            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Connection, new RequestDefinition("1", HttpMethod.Get), host2, "123", 1, RateLimitingBehaviour.Wait, null, default);
             Assert.That(expectLimited ? evnt != null : evnt == null);
         }
 
@@ -381,8 +381,8 @@ namespace CryptoExchange.Net.UnitTests
             rateLimiter.RateLimitTriggered += (x) => { evnt = x; };
             var ct = new CancellationTokenSource(TimeSpan.FromSeconds(0.2));
 
-            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Connection, new RequestDefinition("1", HttpMethod.Get), "https://test.com", "123", 1, RateLimitingBehaviour.Wait, ct.Token);
-            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Connection, new RequestDefinition("1", HttpMethod.Get), "https://test.com", "123", 1, RateLimitingBehaviour.Wait, ct.Token);
+            var result1 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Connection, new RequestDefinition("1", HttpMethod.Get), "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, ct.Token);
+            var result2 = await rateLimiter.ProcessAsync(new TraceLogger(), 1, RateLimitItemType.Connection, new RequestDefinition("1", HttpMethod.Get), "https://test.com", "123", 1, RateLimitingBehaviour.Wait, null, ct.Token);
             Assert.That(result2.Error, Is.TypeOf<CancellationRequestedError>());
         }
     }

CryptoExchange.Net/Clients/RestApiClient.cs

@@ -155,6 +155,7 @@ namespace CryptoExchange.Net.Clients
         /// <param name="additionalHeaders">Additional headers for this request</param>
         /// <param name="weight">Override the request weight for this request definition, for example when the weight depends on the parameters</param>
         /// <param name="weightSingleLimiter">Specify the weight to apply to the individual rate limit guard for this request</param>
+        /// <param name="rateLimitKeySuffix">An additional optional suffix for the key selector. Can be used to make rate limiting work based on parameters.</param>
         /// <returns></returns>
         protected virtual Task<WebCallResult<T>> SendAsync<T>(
             string baseAddress,
@@ -163,7 +164,8 @@ namespace CryptoExchange.Net.Clients
             CancellationToken cancellationToken,
             Dictionary<string, string>? additionalHeaders = null,
             int? weight = null,
-            int? weightSingleLimiter = null)
+            int? weightSingleLimiter = null,
+            string? rateLimitKeySuffix = null)
         {
             var parameterPosition = definition.ParameterPosition ?? ParameterPositions[definition.Method];
             return SendAsync<T>(
@@ -174,7 +176,8 @@ namespace CryptoExchange.Net.Clients
                 cancellationToken,
                 additionalHeaders,
                 weight,
-                weightSingleLimiter);
+                weightSingleLimiter,
+                rateLimitKeySuffix);
         }
 
         /// <summary>
@@ -189,6 +192,7 @@ namespace CryptoExchange.Net.Clients
         /// <param name="additionalHeaders">Additional headers for this request</param>
         /// <param name="weight">Override the request weight for this request definition, for example when the weight depends on the parameters</param>
         /// <param name="weightSingleLimiter">Specify the weight to apply to the individual rate limit guard for this request</param>
+        /// <param name="rateLimitKeySuffix">An additional optional suffix for the key selector. Can be used to make rate limiting work based on parameters.</param>
         /// <returns></returns>
         protected virtual async Task<WebCallResult<T>> SendAsync<T>(
             string baseAddress,
@@ -198,7 +202,8 @@ namespace CryptoExchange.Net.Clients
             CancellationToken cancellationToken,
             Dictionary<string, string>? additionalHeaders = null,
             int? weight = null,
-            int? weightSingleLimiter = null)
+            int? weightSingleLimiter = null,
+            string? rateLimitKeySuffix = null)
         {
             string? cacheKey = null;
             if (ShouldCache(definition))
@@ -222,7 +227,7 @@ namespace CryptoExchange.Net.Clients
                 currentTry++;
                 var requestId = ExchangeHelpers.NextId();
 
-                var prepareResult = await PrepareAsync(requestId, baseAddress, definition, cancellationToken, additionalHeaders, weight, weightSingleLimiter).ConfigureAwait(false);
+                var prepareResult = await PrepareAsync(requestId, baseAddress, definition, cancellationToken, additionalHeaders, weight, weightSingleLimiter, rateLimitKeySuffix).ConfigureAwait(false);
                 if (!prepareResult)
                     return new WebCallResult<T>(prepareResult.Error!);
 
@@ -236,10 +241,17 @@ namespace CryptoExchange.Net.Clients
                 _logger.RestApiSendRequest(request.RequestId, definition, request.Content, string.IsNullOrEmpty(request.Uri.Query) ? "-" : request.Uri.Query, string.Join(", ", request.GetHeaders().Select(h => h.Key + $"=[{string.Join(",", h.Value)}]")));
                 TotalRequestsMade++;
                 var result = await GetResponseAsync<T>(request, definition.RateLimitGate, cancellationToken).ConfigureAwait(false);
-                if (!result)
-                    _logger.RestApiErrorReceived(result.RequestId, result.ResponseStatusCode, (long)Math.Floor(result.ResponseTime!.Value.TotalMilliseconds), result.Error?.ToString());
+                if (result.Error is not CancellationRequestedError)
+                {
+                    if (!result)
+                        _logger.RestApiErrorReceived(result.RequestId, result.ResponseStatusCode, (long)Math.Floor(result.ResponseTime!.Value.TotalMilliseconds), result.Error?.ToString());
+                    else
+                        _logger.RestApiResponseReceived(result.RequestId, result.ResponseStatusCode, (long)Math.Floor(result.ResponseTime!.Value.TotalMilliseconds), OutputOriginalData ? result.OriginalData : "[Data only available when OutputOriginal = true]");
+                }
                 else
-                    _logger.RestApiResponseReceived(result.RequestId, result.ResponseStatusCode, (long)Math.Floor(result.ResponseTime!.Value.TotalMilliseconds), OutputOriginalData ? result.OriginalData : "[Data only available when OutputOriginal = true]");
+                {
+                    _logger.RestApiCancellationRequested(result.RequestId);
+                }
 
                 if (await ShouldRetryRequestAsync(definition.RateLimitGate, result, currentTry).ConfigureAwait(false))
                     continue;
@@ -264,6 +276,7 @@ namespace CryptoExchange.Net.Clients
         /// <param name="additionalHeaders">Additional headers for this request</param>
         /// <param name="weight">Override the request weight for this request</param>
         /// <param name="weightSingleLimiter">Specify the weight to apply to the individual rate limit guard for this request</param>
+        /// <param name="rateLimitKeySuffix">An additional optional suffix for the key selector</param>
         /// <returns></returns>
         /// <exception cref="Exception"></exception>
         protected virtual async Task<CallResult> PrepareAsync(
@@ -273,7 +286,8 @@ namespace CryptoExchange.Net.Clients
             CancellationToken cancellationToken,
             Dictionary<string, string>? additionalHeaders = null,
             int? weight = null,
-            int? weightSingleLimiter = null)
+            int? weightSingleLimiter = null,
+            string? rateLimitKeySuffix = null)
         {
             // Time sync
             if (definition.Authenticated)
@@ -308,7 +322,7 @@ namespace CryptoExchange.Net.Clients
 
                 if (ClientOptions.RateLimiterEnabled)
                 {
-                    var limitResult = await definition.RateLimitGate.ProcessAsync(_logger, requestId, RateLimitItemType.Request, definition, baseAddress, AuthenticationProvider?._credentials.Key, requestWeight, ClientOptions.RateLimitingBehaviour, cancellationToken).ConfigureAwait(false);
+                    var limitResult = await definition.RateLimitGate.ProcessAsync(_logger, requestId, RateLimitItemType.Request, definition, baseAddress, AuthenticationProvider?._credentials.Key, requestWeight, ClientOptions.RateLimitingBehaviour, rateLimitKeySuffix, cancellationToken).ConfigureAwait(false);
                     if (!limitResult)
                         return new CallResult(limitResult.Error!);
                 }
@@ -323,7 +337,7 @@ namespace CryptoExchange.Net.Clients
                 if (ClientOptions.RateLimiterEnabled)
                 {
                     var singleRequestWeight = weightSingleLimiter ?? 1;
-                    var limitResult = await definition.RateLimitGate.ProcessSingleAsync(_logger, requestId, definition.LimitGuard, RateLimitItemType.Request, definition, baseAddress, AuthenticationProvider?._credentials.Key, singleRequestWeight, ClientOptions.RateLimitingBehaviour, cancellationToken).ConfigureAwait(false);
+                    var limitResult = await definition.RateLimitGate.ProcessSingleAsync(_logger, requestId, definition.LimitGuard, RateLimitItemType.Request, definition, baseAddress, AuthenticationProvider?._credentials.Key, singleRequestWeight, ClientOptions.RateLimitingBehaviour, rateLimitKeySuffix, cancellationToken).ConfigureAwait(false);
                     if (!limitResult)
                         return new CallResult(limitResult.Error!);
                 }
@@ -609,7 +623,7 @@ namespace CryptoExchange.Net.Clients
 
                 if (ClientOptions.RateLimiterEnabled)
                 {
-                    var limitResult = await gate.ProcessAsync(_logger, requestId, RateLimitItemType.Request, new RequestDefinition(uri.AbsolutePath.TrimStart('/'), method) { Authenticated = signed }, uri.Host, AuthenticationProvider?._credentials.Key, requestWeight, ClientOptions.RateLimitingBehaviour, cancellationToken).ConfigureAwait(false);
+                    var limitResult = await gate.ProcessAsync(_logger, requestId, RateLimitItemType.Request, new RequestDefinition(uri.AbsolutePath.TrimStart('/'), method) { Authenticated = signed }, uri.Host, AuthenticationProvider?._credentials.Key, requestWeight, ClientOptions.RateLimitingBehaviour, null, cancellationToken).ConfigureAwait(false);
                     if (!limitResult)
                         return new CallResult<IRequest>(limitResult.Error!);
                 }

CryptoExchange.Net/Clients/SocketApiClient.cs

@@ -600,7 +600,8 @@ namespace CryptoExchange.Net.Clients
                 RateLimiter = ClientOptions.RateLimiterEnabled ? RateLimiter : null,
                 RateLimitingBehavior = ClientOptions.RateLimitingBehaviour,
                 Proxy = ClientOptions.Proxy,
-                Timeout = ApiOptions.SocketNoDataTimeout ?? ClientOptions.SocketNoDataTimeout
+                Timeout = ApiOptions.SocketNoDataTimeout ?? ClientOptions.SocketNoDataTimeout,
+                ReceiveBufferSize = ClientOptions.ReceiveBufferSize,
             };
 
         /// <summary>
@@ -670,8 +671,11 @@ namespace CryptoExchange.Net.Clients
             var tasks = new List<Task>();
             {
                 var socketList = socketConnections.Values;
-                foreach (var connection in socketList.Where(s => !s.DedicatedRequestConnection.IsDedicatedRequestConnection))
-                    tasks.Add(connection.CloseAsync());
+                foreach (var connection in socketList)
+                {
+                    foreach(var subscription in connection.Subscriptions.Where(x => x.UserSubscription))
+                        tasks.Add(connection.CloseAsync(subscription));
+                }
             }
 
             await Task.WhenAll(tasks.ToArray()).ConfigureAwait(false);

CryptoExchange.Net/Logging/Extensions/RestApiClientLoggingExtensions.cs

@@ -21,6 +21,7 @@ namespace CryptoExchange.Net.Logging.Extensions
         private static readonly Action<ILogger, string, Exception?> _restApiCheckingCache;
         private static readonly Action<ILogger, string, Exception?> _restApiCacheHit;
         private static readonly Action<ILogger, string, Exception?> _restApiCacheNotHit;
+        private static readonly Action<ILogger, int?, Exception?> _restApiCancellationRequested;
 
         static RestApiClientLoggingExtensions()
         {
@@ -83,6 +84,12 @@ namespace CryptoExchange.Net.Logging.Extensions
                 LogLevel.Trace,
                 new EventId(4011, "RestApiCacheNotHit"),
                 "Cache not hit for key {Key}");
+
+            _restApiCancellationRequested = LoggerMessage.Define<int?>(
+                LogLevel.Debug,
+                new EventId(4012, "RestApiCancellationRequested"),
+                "[Req {RequestId}] Request cancelled by user");
+
         }
 
         public static void RestApiErrorReceived(this ILogger logger, int? requestId, HttpStatusCode? responseStatusCode, long responseTime, string? error)
@@ -144,5 +151,9 @@ namespace CryptoExchange.Net.Logging.Extensions
         {
             _restApiCacheNotHit(logger, key, null);
         }
+        public static void RestApiCancellationRequested(this ILogger logger, int? requestId)
+        {
+            _restApiCancellationRequested(logger, requestId, null);
+        }
     }
 }

CryptoExchange.Net/Objects/AsyncAutoResetEvent.cs

@@ -32,44 +32,51 @@ namespace CryptoExchange.Net.Objects
         /// Wait for the AutoResetEvent to be set
         /// </summary>
         /// <returns></returns>
-        public Task<bool> WaitAsync(TimeSpan? timeout = null, CancellationToken ct = default)
+        public async Task<bool> WaitAsync(TimeSpan? timeout = null, CancellationToken ct = default)
         {
-            lock (_waits)
+            CancellationTokenRegistration registration = default;
+            try
             {
-                if (_signaled)
+                Task<bool> waiter = _completed;
+                lock (_waits)
                 {
-                    if(_reset)
-                        _signaled = false;
-                    return _completed;
-                }
-                else
-                {
-                    if (ct.IsCancellationRequested)
-                        return _completed;
-
-                    var tcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
-                    if (timeout.HasValue)
+                    if (_signaled)
                     {
-                        var timeoutSource = new CancellationTokenSource(timeout.Value);
-                        var cancellationSource = CancellationTokenSource.CreateLinkedTokenSource(timeoutSource.Token, ct);
-                        ct = cancellationSource.Token;
+                        if (_reset)
+                            _signaled = false;
                     }
-
-                    var registration = ct.Register(() =>
+                    else if (!ct.IsCancellationRequested)
                     {
-                        lock (_waits)
+                        var tcs = new TaskCompletionSource<bool>(TaskCreationOptions.RunContinuationsAsynchronously);
+                        if (timeout.HasValue)
                         {
-                            tcs.TrySetResult(false);
-
-                            // Not the cleanest but it works
-                            _waits = new Queue<TaskCompletionSource<bool>>(_waits.Where(i => i != tcs));
+                            var timeoutSource = new CancellationTokenSource(timeout.Value);
+                            var cancellationSource = CancellationTokenSource.CreateLinkedTokenSource(timeoutSource.Token, ct);
+                            ct = cancellationSource.Token;
                         }
-                    }, useSynchronizationContext: false);
-                    
 
-                    _waits.Enqueue(tcs);
-                    return tcs.Task;
+                        registration = ct.Register(() =>
+                        {
+                            lock (_waits)
+                            {
+                                tcs.TrySetResult(false);
+
+                                // Not the cleanest but it works
+                                _waits = new Queue<TaskCompletionSource<bool>>(_waits.Where(i => i != tcs));
+                            }
+                        }, useSynchronizationContext: false);
+
+
+                        _waits.Enqueue(tcs);
+                        waiter = tcs.Task;
+                    }
                 }
+
+                return await waiter.ConfigureAwait(false);
+            }
+            finally
+            {
+                registration.Dispose();
             }
         }
 

CryptoExchange.Net/Objects/Options/SocketExchangeOptions.cs

@@ -52,6 +52,15 @@ namespace CryptoExchange.Net.Objects.Options
         /// </summary>
         public TimeSpan? ConnectDelayAfterRateLimited { get; set; }
 
+        /// <summary>
+        /// The buffer size to use for receiving data. Leave unset to use the default buffer size.
+        /// </summary>
+        /// <remarks>
+        /// Only specify this if you are creating a significant amount of connections and understand the typical message length we receive from the exchange.
+        /// Setting this too low can increase memory consumption and allocations.
+        /// </remarks>
+        public int? ReceiveBufferSize { get; set; }
+
         /// <summary>
         /// Create a copy of this options
         /// </summary>
@@ -72,6 +81,7 @@ namespace CryptoExchange.Net.Objects.Options
             item.RequestTimeout = RequestTimeout;
             item.RateLimitingBehaviour = RateLimitingBehaviour;
             item.RateLimiterEnabled = RateLimiterEnabled;
+            item.ReceiveBufferSize = ReceiveBufferSize;
             return item;
         }
     }

CryptoExchange.Net/Objects/Sockets/WebSocketParameters.cs

@@ -64,6 +64,11 @@ namespace CryptoExchange.Net.Objects.Sockets
         /// </summary>
         public Encoding Encoding { get; set; } = Encoding.UTF8;
 
+        /// <summary>
+        /// The buffer size to use for receiving data
+        /// </summary>
+        public int? ReceiveBufferSize { get; set; } = null;
+
         /// <summary>
         /// ctor
         /// </summary>

CryptoExchange.Net/RateLimiting/Guards/RateLimitGuard.cs

@@ -90,7 +90,7 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         }
 
         /// <inheritdoc />
-        public LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight)
+        public LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix)
         {
             foreach(var filter in _filters)
             {
@@ -101,7 +101,7 @@ namespace CryptoExchange.Net.RateLimiting.Guards
             if (type == RateLimitItemType.Connection)
                 requestWeight = _connectionWeight ?? requestWeight;
 
-            var key = _keySelector(definition, host, apiKey);
+            var key = _keySelector(definition, host, apiKey) + keySuffix;
             if (!_trackers.TryGetValue(key, out var tracker))
             {
                 tracker = CreateTracker();
@@ -116,7 +116,7 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         }
 
         /// <inheritdoc />
-        public RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight)
+        public RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix)
         {
             foreach (var filter in _filters)
             {
@@ -127,7 +127,7 @@ namespace CryptoExchange.Net.RateLimiting.Guards
             if (type == RateLimitItemType.Connection)
                 requestWeight = _connectionWeight ?? requestWeight;
 
-            var key = _keySelector(definition, host, apiKey);
+            var key = _keySelector(definition, host, apiKey) + keySuffix;
             var tracker = _trackers[key];
             tracker.ApplyWeight(requestWeight);
             return RateLimitState.Applied(Limit, TimeSpan, tracker.Current);

CryptoExchange.Net/RateLimiting/Guards/RetryAfterGuard.cs

@@ -42,7 +42,7 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         }
 
         /// <inheritdoc />
-        public LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight)
+        public LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix)
         {
             if (type != Type)
                 return LimitCheck.NotApplicable;
@@ -55,7 +55,7 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         }
 
         /// <inheritdoc />
-        public RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight)
+        public RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix)
         {
             return RateLimitState.NotApplied;
         }

CryptoExchange.Net/RateLimiting/Guards/SingleLimitGuard.cs

@@ -19,7 +19,7 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         /// <summary>
         /// Endpoint limit per API key
         /// </summary>
-        public static Func<RequestDefinition, string, string?, string> PerApiKey { get; } = new Func<RequestDefinition, string, string?, string>((def, host, key) => def.Path + def.Method);
+        public static Func<RequestDefinition, string, string?, string> PerApiKey { get; } = new Func<RequestDefinition, string, string?, string>((def, host, key) => def.Path + def.Method + key);
 
         private readonly Dictionary<string, IWindowTracker> _trackers;
         private readonly RateLimitWindowType _windowType;
@@ -53,9 +53,9 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         }
 
         /// <inheritdoc />
-        public LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight)
+        public LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix)
         {
-            var key = _keySelector(definition, host, apiKey);
+            var key = _keySelector(definition, host, apiKey) + keySuffix;
             if (!_trackers.TryGetValue(key, out var tracker))
             {
                 tracker = CreateTracker();
@@ -70,9 +70,9 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         }
 
         /// <inheritdoc />
-        public RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight)
+        public RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix)
         {
-            var key = _keySelector(definition, host, apiKey);
+            var key = _keySelector(definition, host, apiKey) + keySuffix;
             var tracker = _trackers[key];
             tracker.ApplyWeight(requestWeight);
             return RateLimitState.Applied(_limit, _period, tracker.Current);

CryptoExchange.Net/RateLimiting/Interfaces/IRateLimitGate.cs

@@ -53,9 +53,10 @@ namespace CryptoExchange.Net.RateLimiting.Interfaces
         /// <param name="apiKey">The API key</param>
         /// <param name="requestWeight">Request weight</param>
         /// <param name="behaviour">Behaviour when rate limit is hit</param>
+        /// <param name="keySuffix">An additional optional suffix for the key selector. Can be used to make rate limiting work based on parameters.</param>
         /// <param name="ct">Cancelation token</param>
         /// <returns>Error if RateLimitingBehaviour is Fail and rate limit is hit</returns>
-        Task<CallResult> ProcessAsync(ILogger logger, int itemId, RateLimitItemType type, RequestDefinition definition, string baseAddress, string? apiKey, int requestWeight, RateLimitingBehaviour behaviour, CancellationToken ct);
+        Task<CallResult> ProcessAsync(ILogger logger, int itemId, RateLimitItemType type, RequestDefinition definition, string baseAddress, string? apiKey, int requestWeight, RateLimitingBehaviour behaviour, string? keySuffix, CancellationToken ct);
 
         /// <summary>
         /// Enforces the rate limit as defined in the request definition. When a rate limit is hit will wait for the rate limit to pass if RateLimitingBehaviour is Wait, or return an error if it is set to Fail
@@ -69,8 +70,9 @@ namespace CryptoExchange.Net.RateLimiting.Interfaces
         /// <param name="apiKey">The API key</param>
         /// <param name="behaviour">Behaviour when rate limit is hit</param>
         /// <param name="requestWeight">The weight to apply to the limit guard</param>
+        /// <param name="keySuffix">An additional optional suffix for the key selector. Can be used to make rate limiting work based on parameters.</param>
         /// <param name="ct">Cancelation token</param>
         /// <returns>Error if RateLimitingBehaviour is Fail and rate limit is hit</returns>
-        Task<CallResult> ProcessSingleAsync(ILogger logger, int itemId, IRateLimitGuard guard, RateLimitItemType type, RequestDefinition definition, string baseAddress, string? apiKey, int requestWeight, RateLimitingBehaviour behaviour, CancellationToken ct);
+        Task<CallResult> ProcessSingleAsync(ILogger logger, int itemId, IRateLimitGuard guard, RateLimitItemType type, RequestDefinition definition, string baseAddress, string? apiKey, int requestWeight, RateLimitingBehaviour behaviour, string? keySuffix, CancellationToken ct);
     }
 }

CryptoExchange.Net/RateLimiting/Interfaces/IRateLimitGuard.cs

@@ -25,8 +25,9 @@ namespace CryptoExchange.Net.RateLimiting.Interfaces
         /// <param name="host">The host address</param>
         /// <param name="apiKey">The API key</param>
         /// <param name="requestWeight">The request weight</param>
+        /// <param name="keySuffix">An additional optional suffix for the key selector. Can be used to make rate limiting work based on parameters.</param>
         /// <returns></returns>
-        LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight);
+        LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix);
 
         /// <summary>
         /// Apply the request to this guard with the specified weight
@@ -36,7 +37,8 @@ namespace CryptoExchange.Net.RateLimiting.Interfaces
         /// <param name="host">The host address</param>
         /// <param name="apiKey">The API key</param>
         /// <param name="requestWeight">The request weight</param>
+        /// <param name="keySuffix">An additional optional suffix for the key selector. Can be used to make rate limiting work based on parameters.</param>
         /// <returns></returns>
-        RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight);
+        RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix);
     }
 }

CryptoExchange.Net/RateLimiting/RateLimitGate.cs

@@ -37,14 +37,14 @@ namespace CryptoExchange.Net.RateLimiting
         }
 
         /// <inheritdoc />
-        public async Task<CallResult> ProcessAsync(ILogger logger, int itemId, RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, RateLimitingBehaviour rateLimitingBehaviour, CancellationToken ct)
+        public async Task<CallResult> ProcessAsync(ILogger logger, int itemId, RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, RateLimitingBehaviour rateLimitingBehaviour, string? keySuffix, CancellationToken ct)
         {
             await _semaphore.WaitAsync(ct).ConfigureAwait(false);
             bool release = true;
             _waitingCount++;
             try
             {
-                return await CheckGuardsAsync(_guards, logger, itemId, type, definition, host, apiKey, requestWeight, rateLimitingBehaviour, ct).ConfigureAwait(false);
+                return await CheckGuardsAsync(_guards, logger, itemId, type, definition, host, apiKey, requestWeight, rateLimitingBehaviour, keySuffix, ct).ConfigureAwait(false);
             }
             catch (TaskCanceledException)
             {
@@ -71,6 +71,7 @@ namespace CryptoExchange.Net.RateLimiting
             string? apiKey,
              int requestWeight,
             RateLimitingBehaviour rateLimitingBehaviour,
+            string? keySuffix,
             CancellationToken ct)
         {
             await _semaphore.WaitAsync(ct).ConfigureAwait(false);
@@ -78,7 +79,7 @@ namespace CryptoExchange.Net.RateLimiting
             _waitingCount++;
             try
             {
-                return await CheckGuardsAsync(new IRateLimitGuard[] { guard }, logger, itemId, type, definition, host, apiKey, requestWeight, rateLimitingBehaviour, ct).ConfigureAwait(false);
+                return await CheckGuardsAsync(new IRateLimitGuard[] { guard }, logger, itemId, type, definition, host, apiKey, requestWeight, rateLimitingBehaviour, keySuffix, ct).ConfigureAwait(false);
             }
             catch (TaskCanceledException)
             {
@@ -94,12 +95,12 @@ namespace CryptoExchange.Net.RateLimiting
             }
         }
 
-        private async Task<CallResult> CheckGuardsAsync(IEnumerable<IRateLimitGuard> guards, ILogger logger, int itemId, RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, RateLimitingBehaviour rateLimitingBehaviour, CancellationToken ct)
+        private async Task<CallResult> CheckGuardsAsync(IEnumerable<IRateLimitGuard> guards, ILogger logger, int itemId, RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, RateLimitingBehaviour rateLimitingBehaviour, string? keySuffix, CancellationToken ct)
         {
             foreach (var guard in guards)
             {
                 // Check if a wait is needed for this guard
-                var result = guard.Check(type, definition, host, apiKey, requestWeight);
+                var result = guard.Check(type, definition, host, apiKey, requestWeight, keySuffix);
                 if (result.Delay != TimeSpan.Zero && rateLimitingBehaviour == RateLimitingBehaviour.Fail)
                 {
                     // Delay is needed and limit behaviour is to fail the request
@@ -126,14 +127,14 @@ namespace CryptoExchange.Net.RateLimiting
                     RateLimitTriggered?.Invoke(new RateLimitEvent(itemId, _name, guard.Description, definition, host, result.Current, requestWeight, result.Limit, result.Period, result.Delay, rateLimitingBehaviour));
                     await Task.Delay((int)result.Delay.TotalMilliseconds + 1, ct).ConfigureAwait(false);
                     await _semaphore.WaitAsync(ct).ConfigureAwait(false);
-                    return await CheckGuardsAsync(guards, logger, itemId, type, definition, host, apiKey, requestWeight, rateLimitingBehaviour, ct).ConfigureAwait(false);
+                    return await CheckGuardsAsync(guards, logger, itemId, type, definition, host, apiKey, requestWeight, rateLimitingBehaviour, keySuffix, ct).ConfigureAwait(false);
                 }
             }
 
             // Apply the weight on each guard
             foreach (var guard in guards)
             {
-                var result = guard.ApplyWeight(type, definition, host, apiKey, requestWeight);
+                var result = guard.ApplyWeight(type, definition, host, apiKey, requestWeight, keySuffix);
                 if (result.IsApplied)
                 {
                     RateLimitUpdated?.Invoke(new RateLimitUpdateEvent(itemId, _name, guard.Description, result.Current, result.Limit, result.Period));

CryptoExchange.Net/Sockets/CryptoExchangeWebSocketClient.cs

@@ -5,6 +5,7 @@ using CryptoExchange.Net.Objects.Sockets;
 using CryptoExchange.Net.RateLimiting;
 using Microsoft.Extensions.Logging;
 using System;
+using System.Buffers;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.IO;
@@ -32,6 +33,7 @@ namespace CryptoExchange.Net.Sockets
 
         internal static int _lastStreamId;
         private static readonly object _streamIdLock = new();
+        private static readonly ArrayPool<byte> _receiveBufferPool = ArrayPool<byte>.Shared;
 
         private readonly AsyncResetEvent _sendEvent;
         private readonly ConcurrentQueue<SendItem> _sendBuffer;
@@ -48,8 +50,9 @@ namespace CryptoExchange.Net.Sockets
         private DateTime _lastReconnectTime;
         private readonly string _baseAddress;
         private int _reconnectAttempt;
+        private readonly int _receiveBufferSize;
 
-        private const int _receiveBufferSize = 1048576;
+        private const int _defaultReceiveBufferSize = 1048576;
         private const int _sendBufferSize = 4096;
 
         /// <summary>
@@ -149,6 +152,7 @@ namespace CryptoExchange.Net.Sockets
             _sendBuffer = new ConcurrentQueue<SendItem>();
             _ctsSource = new CancellationTokenSource();
             _receivedMessagesLock = new object();
+            _receiveBufferSize = websocketParameters.ReceiveBufferSize ?? _defaultReceiveBufferSize;
 
             _closeSem = new SemaphoreSlim(1, 1);
             _socket = CreateSocket();
@@ -219,7 +223,7 @@ namespace CryptoExchange.Net.Sockets
                 if (Parameters.RateLimiter != null)
                 {
                     var definition = new RequestDefinition(Uri.AbsolutePath, HttpMethod.Get) { ConnectionId = Id };
-                    var limitResult = await Parameters.RateLimiter.ProcessAsync(_logger, Id, RateLimitItemType.Connection, definition, _baseAddress, null, 1, Parameters.RateLimitingBehavior, _ctsSource.Token).ConfigureAwait(false);
+                    var limitResult = await Parameters.RateLimiter.ProcessAsync(_logger, Id, RateLimitItemType.Connection, definition, _baseAddress, null, 1, Parameters.RateLimitingBehavior, null, _ctsSource.Token).ConfigureAwait(false);
                     if (!limitResult)
                         return new CallResult(new ClientRateLimitError("Connection limit reached"));
                 }
@@ -508,7 +512,7 @@ namespace CryptoExchange.Net.Sockets
                         {
                             try
                             {
-                                var limitResult = await Parameters.RateLimiter.ProcessAsync(_logger, data.Id, RateLimitItemType.Request, requestDefinition, _baseAddress, null, data.Weight, Parameters.RateLimitingBehavior, _ctsSource.Token).ConfigureAwait(false);
+                                var limitResult = await Parameters.RateLimiter.ProcessAsync(_logger, data.Id, RateLimitItemType.Request, requestDefinition, _baseAddress, null, data.Weight, Parameters.RateLimitingBehavior, null, _ctsSource.Token).ConfigureAwait(false);
                                 if (!limitResult)
                                 {
                                     await (OnRequestRateLimited?.Invoke(data.Id) ?? Task.CompletedTask).ConfigureAwait(false);
@@ -566,8 +570,8 @@ namespace CryptoExchange.Net.Sockets
         /// <returns></returns>
         private async Task ReceiveLoopAsync()
         {
-            var buffer = new ArraySegment<byte>(new byte[_receiveBufferSize]);
-            var received = 0;
+            byte[] rentedBuffer = _receiveBufferPool.Rent(_receiveBufferSize);
+            var buffer = new ArraySegment<byte>(rentedBuffer);
             try
             {
                 while (true)
@@ -583,13 +587,12 @@ namespace CryptoExchange.Net.Sockets
                         try
                         {
                             receiveResult = await _socket.ReceiveAsync(buffer, _ctsSource.Token).ConfigureAwait(false);
-                            received += receiveResult.Count;
                             lock (_receivedMessagesLock)
                                 _receivedMessages.Add(new ReceiveItem(DateTime.UtcNow, receiveResult.Count));
                         }
                         catch (OperationCanceledException ex)
                         {
-                            if (ex.InnerException?.InnerException?.Message.Equals("The WebSocket didn't receive a Pong frame in response to a Ping frame within the configured KeepAliveTimeout.") == true)
+                            if (ex.InnerException?.InnerException?.Message.Contains("KeepAliveTimeout") == true)
                             {
                                 // Specific case that the websocket connection got closed because of a ping frame timeout
                                 // Unfortunately doesn't seem to be a nicer way to catch
@@ -649,7 +652,7 @@ namespace CryptoExchange.Net.Sockets
                             {
                                 // Received a complete message and it's not multi part
                                 _logger.SocketReceivedSingleMessage(Id, receiveResult.Count);
-                                await ProcessData(receiveResult.MessageType, new ReadOnlyMemory<byte>(buffer.Array, buffer.Offset, receiveResult.Count)).ConfigureAwait(false);
+                                await ProcessData(receiveResult.MessageType, new ReadOnlyMemory<byte>(buffer.Array!, buffer.Offset, receiveResult.Count)).ConfigureAwait(false);
                             }
                             else
                             {
@@ -705,6 +708,7 @@ namespace CryptoExchange.Net.Sockets
             }
             finally
             {
+                _receiveBufferPool.Return(rentedBuffer, true);
                 _logger.SocketReceiveLoopFinished(Id);
             }
         }

Examples/BlazorClient/BlazorClient.csproj

@@ -5,25 +5,26 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Binance.Net" Version="10.16.2" />
-    <PackageReference Include="Bitfinex.Net" Version="8.0.2" />
-    <PackageReference Include="BitMart.Net" Version="1.12.2" />
-    <PackageReference Include="Bybit.Net" Version="4.0.2" />
-    <PackageReference Include="CoinEx.Net" Version="7.14.0" />
-    <PackageReference Include="CryptoCom.Net" Version="1.5.1" />
-    <PackageReference Include="GateIo.Net" Version="1.18.0" />
-    <PackageReference Include="HyperLiquid.Net" Version="1.0.1" />
-    <PackageReference Include="JK.BingX.Net" Version="1.20.1" />
-    <PackageReference Include="JK.Bitget.Net" Version="1.20.0" />
-    <PackageReference Include="JK.Mexc.Net" Version="2.0.0" />
-    <PackageReference Include="JK.OKX.Net" Version="2.14.2" />
-    <PackageReference Include="JKorf.BitMEX.Net" Version="1.0.0" />
-    <PackageReference Include="JKorf.Coinbase.Net" Version="1.7.2" />
-    <PackageReference Include="JKorf.HTX.Net" Version="6.8.2" />
-    <PackageReference Include="KrakenExchange.Net" Version="5.6.0" />
-    <PackageReference Include="Kucoin.Net" Version="5.23.5" />
+    <PackageReference Include="Binance.Net" Version="10.18.0" />
+    <PackageReference Include="Bitfinex.Net" Version="8.1.1" />
+    <PackageReference Include="BitMart.Net" Version="1.14.0" />
+    <PackageReference Include="Bybit.Net" Version="4.3.2" />
+    <PackageReference Include="CoinEx.Net" Version="8.0.1" />
+    <PackageReference Include="CryptoCom.Net" Version="1.6.0" />
+    <PackageReference Include="DeepCoin.Net" Version="1.0.0" />
+    <PackageReference Include="GateIo.Net" Version="1.20.1" />
+    <PackageReference Include="HyperLiquid.Net" Version="1.1.0" />
+    <PackageReference Include="JK.BingX.Net" Version="1.21.0" />
+    <PackageReference Include="JK.Bitget.Net" Version="1.21.0" />
+    <PackageReference Include="JK.Mexc.Net" Version="2.1.0" />
+    <PackageReference Include="JK.OKX.Net" Version="2.15.0" />
+    <PackageReference Include="JKorf.BitMEX.Net" Version="1.1.0" />
+    <PackageReference Include="JKorf.Coinbase.Net" Version="1.8.1" />
+    <PackageReference Include="JKorf.HTX.Net" Version="6.9.0" />
+    <PackageReference Include="KrakenExchange.Net" Version="5.7.1" />
+    <PackageReference Include="Kucoin.Net" Version="6.0.0" />
     <PackageReference Include="Serilog.AspNetCore" Version="9.0.0" />
-    <PackageReference Include="WhiteBit.Net" Version="1.3.2" />
+    <PackageReference Include="WhiteBit.Net" Version="1.4.0" />
   </ItemGroup>
 
 </Project>

Examples/BlazorClient/Pages/Index.razor

@@ -9,6 +9,7 @@
 @inject ICoinbaseRestClient coinbaseClient
 @inject ICoinExRestClient coinexClient
 @inject ICryptoComRestClient cryptocomClient
+@inject IDeepCoinRestClient deepCoinClient
 @inject IGateIoRestClient gateioClient
 @inject IHTXRestClient htxClient
 @inject IHyperLiquidRestClient hyperLiquidClient
@@ -37,8 +38,9 @@
         var bitmexTask = bitmexClient.ExchangeApi.ExchangeData.GetSymbolsAsync("XBT_USDT");
         var bybitTask = bybitClient.V5Api.ExchangeData.GetSpotTickersAsync("BTCUSDT");
         var coinbaseTask = coinbaseClient.AdvancedTradeApi.ExchangeData.GetSymbolAsync("BTC-USDT");
-        var coinexTask = coinexClient.SpotApi.ExchangeData.GetTickerAsync("BTCUSDT");
+        var coinexTask = coinexClient.SpotApiV2.ExchangeData.GetTickersAsync(["BTCUSDT"]);
         var cryptocomTask = cryptocomClient.ExchangeApi.ExchangeData.GetTickersAsync("BTC_USDT");
+        var deepCoinTask = deepCoinClient.ExchangeApi.ExchangeData.GetTickersAsync(DeepCoin.Net.Enums.SymbolType.Spot);
         var gateioTask = gateioClient.SpotApi.ExchangeData.GetTickersAsync("BTC_USDT");
         var htxTask = htxClient.SpotApi.ExchangeData.GetTickerAsync("btcusdt");
         var hyperLiquidTask = hyperLiquidClient.FuturesApi.ExchangeData.GetExchangeInfoAndTickersAsync(); // HyperLiquid does not have BTC spot trading
@@ -48,7 +50,7 @@
         var okxTask = okxClient.UnifiedApi.ExchangeData.GetTickerAsync("BTCUSDT");
         var whitebitTask = whitebitClient.V4Api.ExchangeData.GetTickersAsync();
 
-        await Task.WhenAll(binanceTask, bingXTask, bitfinexTask, bitgetTask, bitmartTask, bybitTask, coinexTask, gateioTask, htxTask, krakenTask, kucoinTask, mexcTask, okxTask);
+        await Task.WhenAll(binanceTask, bingXTask, bitfinexTask, bitgetTask, bitmartTask, bybitTask, coinexTask, deepCoinTask, gateioTask, htxTask, krakenTask, kucoinTask, mexcTask, okxTask);
 
         if (binanceTask.Result.Success)
             _prices.Add("Binance", binanceTask.Result.Data.LastPrice);
@@ -75,11 +77,18 @@
             _prices.Add("Coinbase", coinbaseTask.Result.Data.LastPrice ?? 0);
 
         if (coinexTask.Result.Success)
-            _prices.Add("CoinEx", coinexTask.Result.Data.Ticker.LastPrice);
+            _prices.Add("CoinEx", coinexTask.Result.Data.Single().LastPrice);
 
         if (cryptocomTask.Result.Success)
             _prices.Add("CryptoCom", cryptocomTask.Result.Data.First().LastPrice ?? 0);
 
+        if (deepCoinTask.Result.Success)
+        {
+            // DeepCoin API doesn't offer an endpoint to filter for a specific ticker, so we have to filter client side
+            var tickers = deepCoinTask.Result.Data;
+            _prices.Add("DeepCoin", tickers.Single(x => x.Symbol == "BTC-USDT").LastPrice ?? 0);
+        }
+
         if (gateioTask.Result.Success)
             _prices.Add("GateIo", gateioTask.Result.Data.First().LastPrice);
 

Examples/BlazorClient/Pages/LiveData.razor

@@ -9,6 +9,7 @@
 @inject ICoinbaseSocketClient coinbaseSocketClient
 @inject ICoinExSocketClient coinExSocketClient
 @inject ICryptoComSocketClient cryptocomSocketClient
+@inject IDeepCoinSocketClient deepCoinSocketClient
 @inject IGateIoSocketClient gateioSocketClient
 @inject IHTXSocketClient htxSocketClient
 @inject IHyperLiquidSocketClient hyperLiquidSocketClient
@@ -47,6 +48,7 @@
             coinExSocketClient.SpotApiV2.SubscribeToTickerUpdatesAsync(["ETHBTC"], data => UpdateData("CoinEx", data.Data.First().LastPrice)),
             coinbaseSocketClient.AdvancedTradeApi.SubscribeToTickerUpdatesAsync("ETH-BTC", data => UpdateData("Coinbase", data.Data.LastPrice ?? 0)),
             cryptocomSocketClient.ExchangeApi.SubscribeToTickerUpdatesAsync("ETH_BTC", data => UpdateData("CryptoCom", data.Data.LastPrice ?? 0)),
+            deepCoinSocketClient.ExchangeApi.SubscribeToSymbolUpdatesAsync("ETH-BTC", data => UpdateData("DeepCoin", data.Data.LastPrice ?? 0)),
             gateioSocketClient.SpotApi.SubscribeToTickerUpdatesAsync("ETH_BTC", data => UpdateData("GateIo", data.Data.LastPrice)),
             htxSocketClient.SpotApi.SubscribeToTickerUpdatesAsync("ethbtc", data => UpdateData("HTX", data.Data.ClosePrice ?? 0)),
             // HyperLiquid doesn't support the ETH/BTC pair

Examples/BlazorClient/Pages/OrderBooks.razor

@@ -12,6 +12,7 @@
 @using Coinbase.Net.Interfaces
 @using CryptoExchange.Net.Interfaces
 @using CryptoCom.Net.Interfaces
+@using DeepCoin.Net.Interfaces
 @using GateIo.Net.Interfaces
 @using HTX.Net.Interfaces
 @using HyperLiquid.Net.Interfaces
@@ -31,6 +32,7 @@
 @inject ICoinbaseOrderBookFactory coinbaseFactory
 @inject ICoinExOrderBookFactory coinExFactory
 @inject ICryptoComOrderBookFactory cryptocomFactory
+@inject IDeepCoinOrderBookFactory deepCoinFactory
 @inject IGateIoOrderBookFactory gateioFactory
 @inject IHTXOrderBookFactory htxFactory
 @inject IHyperLiquidOrderBookFactory hyperLiquidFactory
@@ -83,6 +85,7 @@
                 { "CoinEx", coinExFactory.CreateSpot("ETHBTC") },
                 { "CryptoCom", cryptocomFactory.Create("ETH_BTC") },
                 { "GateIo", gateioFactory.CreateSpot("ETH_BTC") },
+                { "DeepCoin", deepCoinFactory.Create("ETH-BTC") },
                 { "HTX", htxFactory.CreateSpot("ethbtc") },
                 // HyperLiquid does not support the ETH/BTC pair
                 //{ "HyperLiquid", hyperLiquidFactory.Create("ETH/BTC") },

Examples/BlazorClient/Pages/SpotClient.razor

@@ -1,5 +1,6 @@
 @page "/SpotClient"
 @using CryptoExchange.Net.SharedApis
+@using System.Diagnostics
 @inject IEnumerable<ISpotTickerRestClient> restClients
 
 <h3>ETH-BTC prices:</h3>
@@ -20,6 +21,8 @@
         {
             if (ticker.Success)
                 _prices.Add(ticker.Exchange, ticker.Data.LastPrice);
+            else
+                Debug.WriteLine($"{ticker.Exchange} failed: {ticker.Error}");
         }
     }
 

Examples/BlazorClient/Pages/Trackers.razor

@@ -14,6 +14,7 @@
 @using CryptoCom.Net.Interfaces
 @using CryptoExchange.Net.SharedApis
 @using CryptoExchange.Net.Trackers.Trades
+@using DeepCoin.Net.Interfaces
 @using GateIo.Net.Interfaces
 @using HTX.Net.Interfaces
 @using HyperLiquid.Net.Interfaces
@@ -33,6 +34,7 @@
 @inject ICoinbaseTrackerFactory coinbaseFactory
 @inject ICoinExTrackerFactory coinExFactory
 @inject ICryptoComTrackerFactory cryptocomFactory
+@inject IDeepCoinTrackerFactory deepCoinFactory
 @inject IGateIoTrackerFactory gateioFactory
 @inject IHTXTrackerFactory htxFactory
 @inject IHyperLiquidTrackerFactory hyperLiquidFactory
@@ -77,6 +79,7 @@
                 { coinbaseFactory.CreateTradeTracker(usdtSymbol, period: TimeSpan.FromMinutes(5)) },
                 { coinExFactory.CreateTradeTracker(usdtSymbol, period: TimeSpan.FromMinutes(5)) },
                 { cryptocomFactory.CreateTradeTracker(usdtSymbol, period: TimeSpan.FromMinutes(5)) },
+                { deepCoinFactory.CreateTradeTracker(usdtSymbol, period: TimeSpan.FromMinutes(5)) },
                 { gateioFactory.CreateTradeTracker(usdtSymbol, period: TimeSpan.FromMinutes(5)) },
                 { htxFactory.CreateTradeTracker(usdtSymbol, period: TimeSpan.FromMinutes(5)) },
                 // HyperLiquid doesn't support spot pair, but does have a futures BTC/USDC pair

Examples/BlazorClient/Startup.cs

@@ -45,6 +45,7 @@ namespace BlazorClient
             services.AddCoinbase();
             services.AddCoinEx();
             services.AddCryptoCom();
+            services.AddDeepCoin();
             services.AddGateIo();
             services.AddHyperLiquid();
             services.AddHTX();

Examples/BlazorClient/_Imports.razor

@@ -18,6 +18,7 @@
 @using Coinbase.Net.Interfaces.Clients;
 @using CoinEx.Net.Interfaces.Clients;
 @using CryptoCom.Net.Interfaces.Clients;
+@using DeepCoin.Net.Interfaces.Clients;
 @using GateIo.Net.Interfaces.Clients;
 @using HTX.Net.Interfaces.Clients;
 @using HyperLiquid.Net.Interfaces.Clients;

README.md

@@ -23,6 +23,7 @@ The following API's are directly supported. Note that there are 3rd party implem
 |CoinEx|[JKorf/CoinEx.Net](https://github.com/JKorf/CoinEx.Net)|[![Nuget version](https://img.shields.io/nuget/v/CoinEx.net.svg?style=flat-square)](https://www.nuget.org/packages/CoinEx.Net)|
 |CoinGecko|[JKorf/CoinGecko.Net](https://github.com/JKorf/CoinGecko.Net)|[![Nuget version](https://img.shields.io/nuget/v/CoinGecko.net.svg?style=flat-square)](https://www.nuget.org/packages/CoinGecko.Net)|
 |Crypto.com|[JKorf/CryptoCom.Net](https://github.com/JKorf/CryptoCom.Net)|[![Nuget version](https://img.shields.io/nuget/v/CryptoCom.net.svg?style=flat-square)](https://www.nuget.org/packages/CryptoCom.Net)|
+|DeepCoin|[JKorf/DeepCoin.Net](https://github.com/JKorf/DeepCoin.Net)|[![Nuget version](https://img.shields.io/nuget/v/DeepCoin.net.svg?style=flat-square)](https://www.nuget.org/packages/DeepCoin.Net)|
 |Gate.io|[JKorf/GateIo.Net](https://github.com/JKorf/GateIo.Net)|[![Nuget version](https://img.shields.io/nuget/v/GateIo.net.svg?style=flat-square)](https://www.nuget.org/packages/GateIo.Net)|
 |HTX|[JKorf/HTX.Net](https://github.com/JKorf/HTX.Net)|[![Nuget version](https://img.shields.io/nuget/v/JKorf.HTX.net.svg?style=flat-square)](https://www.nuget.org/packages/JKorf.HTX.Net)|
 |HyperLiquid|[JKorf/HyperLiquid.Net](https://github.com/JKorf/HyperLiquid.Net)|[![Nuget version](https://img.shields.io/nuget/v/HyperLiquid.Net.svg?style=flat-square)](https://www.nuget.org/packages/HyperLiquid.Net)|
@@ -51,6 +52,7 @@ When creating an account on new exchanges please consider using a referral link
 |Coinbase|[https://advanced.coinbase.com/join/T6H54H8](https://advanced.coinbase.com/join/T6H54H8)|
 |CoinEx|[https://www.coinex.com/register?refer_code=hd6gn](https://www.coinex.com/register?refer_code=hd6gn)|
 |Crypto.com|[https://crypto.com/exch/26ge92xbkn](https://crypto.com/exch/26ge92xbkn)|
+|DeepCoin|[https://s.deepcoin.com/jddhfca)|
 |HTX|[https://www.htx.com/invite/en-us/1f?invite_code=fxp9](https://www.htx.com/invite/en-us/1f?invite_code=fxp9)|
 |HyperLiquid|[https://app.hyperliquid.xyz/join/JKORF](https://app.hyperliquid.xyz/join/JKORF)|
 |Kucoin|[https://www.kucoin.com/r/rf/QBS4FPED](https://www.kucoin.com/r/rf/QBS4FPED)|

docs/index.html

@@ -157,6 +157,7 @@
 			<tr><td>CoinEx</td><td><a href="https://github.com/JKorf/CoinEx.Net">JKorf/CoinEx.Net</a></td><td><a href="https://www.nuget.org/packages/CoinEx.Net" target="_blank"><img src="https://img.shields.io/nuget/v/CoinEx.net.svg?style=flat-square" /></a></td></tr>
 			<tr><td>CoinGecko</td><td><a href="https://github.com/JKorf/CoinGecko.Net">JKorf/CoinGecko.Net</a></td><td><a href="https://www.nuget.org/packages/CoinGecko.Net" target="_blank"><img src="https://img.shields.io/nuget/v/CoinGecko.net.svg?style=flat-square" /></a></td></tr>
 			<tr><td>Crypto.com</td><td><a href="https://github.com/JKorf/CryptoCom.Net">JKorf/CryptoCom.Net</a></td><td><a href="https://www.nuget.org/packages/CryptoCom.Net" target="_blank"><img src="https://img.shields.io/nuget/v/CryptoCom.net.svg?style=flat-square" /></a></td></tr>
+			<tr><td>DeepCoin</td><td><a href="https://github.com/JKorf/DeepCoin.Net">JKorf/DeepCoin.Net</a></td><td><a href="https://www.nuget.org/packages/DeepCoin.Net" target="_blank"><img src="https://img.shields.io/nuget/v/DeepCoin.net.svg?style=flat-square" /></a></td></tr>
 			<tr><td>Gate.io</td><td><a href="https://github.com/JKorf/GateIo.Net">JKorf/GateIo.Net</a></td><td><a href="https://www.nuget.org/packages/GateIo.Net" target="_blank"><img src="https://img.shields.io/nuget/v/GateIo.net.svg?style=flat-square" /></a></td></tr>
 			<tr><td>HTX</td><td><a href="https://github.com/JKorf/HTX.Net">JKorf/HTX.Net</a></td><td><a href="https://www.nuget.org/packages/JKorf.HTX.Net" target="_blank"><img src="https://img.shields.io/nuget/v/JKorf.HTX.net.svg?style=flat-square" /></a></td></tr>
 			<tr><td>HyperLiquid</td><td><a href="https://github.com/JKorf/HyperLiquid.Net">JKorf/HyperLiquid.Net</a></td><td><a href="https://www.nuget.org/packages/HyperLiquid.Net" target="_blank"><img src="https://img.shields.io/nuget/v/HyperLiquid.net.svg?style=flat-square" /></a></td></tr>
@@ -204,7 +205,8 @@
 		  <tr><td>Bybit</td><td>https://partner.bybit.com/b/jkorf</td></tr>
 		  <tr><td>Coinbase</td><td>https://advanced.coinbase.com/join/T6H54H8</td></tr>
 		  <tr><td>CoinEx</td><td>https://www.coinex.com/register?refer_code=hd6gn</td></tr>
-		  <tr><td>Crypto.com</td><td>https://crypto.com/exch/26ge92xbkn</td></tr>
+		  <tr><td>Crypto.com</td><td>https://crypto.com/exch/26ge92xbkn</td></tr>		  
+		  <tr><td>DeepCoin</td><td>https://s.deepcoin.com/jddhfca</td></tr>
 		  <tr><td>HTX</td><td>https://www.htx.com/invite/en-us/1f?invite_code=fxp9</td></tr>
 		  <tr><td>HyperLiquid</td><td>https://app.hyperliquid.xyz/join/JKORF</td></tr>
 		  <tr><td>Kucoin</td><td>https://www.kucoin.com/r/rf/QBS4FPED</td></tr>