Updated to version 13.2.0

Updated WebSocket duplicate subscription handling
Fixed incorrect status keeping of WebSocket subscriptions which don't expect a response

CryptoExchange.Net/Clients/SocketApiClient.cs

@@ -286,7 +286,7 @@ namespace CryptoExchange.Net.Clients
                     while (true)
                     {
                         // Get a new or existing socket connection
-                        var socketResult = await GetSocketConnection(url, subscription.Authenticated, false, ct, subscription.Topic, subscription.IndividualSubscriptionCount).ConfigureAwait(false);
+                        var socketResult = await GetSocketConnection(url, subscription.Authenticated, false, ct, subscription, subscription.Topic, subscription.IndividualSubscriptionCount).ConfigureAwait(false);
                         if (!socketResult.Success)
                             return WebSocketResult.Fail<UpdateSubscription>(Exchange, socketResult.Error);
 
@@ -309,7 +309,7 @@ namespace CryptoExchange.Net.Clients
 
                         var needsConnecting = !socketConnection.Connected;
 
-                        var connectResult = await ConnectIfNeededAsync(socketConnection, subscription.Authenticated, ct).ConfigureAwait(false);
+                        var connectResult = await ConnectIfNeededAsync(socketConnection, subscription.Authenticated, ct, subscription).ConfigureAwait(false);
                         if (!connectResult.Success)
                             return WebSocketResult.Fail<UpdateSubscription>(Exchange, connectResult.Error!);
 
@@ -482,7 +482,7 @@ namespace CryptoExchange.Net.Clients
             await semaphoreSlim.WaitAsync().ConfigureAwait(false);
             try
             {
-                var socketResult = await GetSocketConnection(url, query.Authenticated, true, ct).ConfigureAwait(false);
+                var socketResult = await GetSocketConnection(url, query.Authenticated, true, ct, processor: query).ConfigureAwait(false);
                 if (!socketResult.Success)
                     return QueryResult.Fail<THandlerResponse>(Exchange, socketResult.Error);
 
@@ -495,7 +495,7 @@ namespace CryptoExchange.Net.Clients
                     released = true;
                 }
 
-                var connectResult = await ConnectIfNeededAsync(socketConnection, query.Authenticated, ct).ConfigureAwait(false);
+                var connectResult = await ConnectIfNeededAsync(socketConnection, query.Authenticated, ct, query).ConfigureAwait(false);
                 if (!connectResult.Success)
                     return QueryResult.Fail<THandlerResponse>(Exchange, connectResult.Error!);
             }
@@ -524,7 +524,18 @@ namespace CryptoExchange.Net.Clients
         /// <param name="authenticated">Whether the socket should authenticated</param>
         /// <param name="ct">Cancellation token</param>
         /// <returns></returns>
-        protected virtual async Task<CallResult> ConnectIfNeededAsync(ISocketConnection socket, bool authenticated, CancellationToken ct)
+        protected virtual Task<CallResult> ConnectIfNeededAsync(ISocketConnection socket, bool authenticated, CancellationToken ct)
+            => ConnectIfNeededAsync(socket, authenticated, ct, null);
+
+        /// <summary>
+        /// Checks if a socket needs to be connected and does so if needed. Also authenticates on the socket if needed
+        /// </summary>
+        /// <param name="socket">The connection to check</param>
+        /// <param name="authenticated">Whether the socket should authenticated</param>
+        /// <param name="processor">The message processor requesting a connection</param>
+        /// <param name="ct">Cancellation token</param>
+        /// <returns></returns>
+        protected virtual async Task<CallResult> ConnectIfNeededAsync(ISocketConnection socket, bool authenticated, CancellationToken ct, IMessageProcessor? processor)
         {
             if (socket.Connected)
                 return CallResult.Ok();
@@ -533,16 +544,13 @@ namespace CryptoExchange.Net.Clients
             if (!connectResult.Success)
                 return connectResult;
 
-            if (ClientOptions.DelayAfterConnect != TimeSpan.Zero)
-                await Task.Delay(ClientOptions.DelayAfterConnect).ConfigureAwait(false);
-
             if (!authenticated || socket.Authenticated)
                 return CallResult.Ok();
 
             if (socket is not SocketConnection sc)
                 throw new InvalidOperationException("HighPerfSocketConnection not supported for authentication");
 
-            var result = await AuthenticateSocketAsync(sc).ConfigureAwait(false);
+            var result = await AuthenticateSocketAsync(sc, processor).ConfigureAwait(false);
             if (!result.Success)
                 await socket.CloseAsync().ConfigureAwait(false);
 
@@ -554,13 +562,22 @@ namespace CryptoExchange.Net.Clients
         /// </summary>
         /// <param name="socket">Socket to authenticate</param>
         /// <returns></returns>
-        public virtual async Task<CallResult> AuthenticateSocketAsync(SocketConnection socket)
+        public virtual Task<CallResult> AuthenticateSocketAsync(SocketConnection socket)
+            => AuthenticateSocketAsync(socket, null);
+
+        /// <summary>
+        /// Authenticate a socket connection
+        /// </summary>
+        /// <param name="socket">Socket to authenticate</param>
+        /// <param name="processor">The message processor requesting authentication</param>
+        /// <returns></returns>
+        public virtual async Task<CallResult> AuthenticateSocketAsync(SocketConnection socket, IMessageProcessor? processor)
         {
             if (GetAuthenticationProvider() == null)
                 return CallResult.Fail(new NoApiCredentialsError());
 
             _logger.AttemptingToAuthenticate(socket.SocketId);
-            var authRequest = await GetAuthenticationRequestAsync(socket).ConfigureAwait(false);
+            var authRequest = await GetAuthenticationRequestAsync(socket, processor).ConfigureAwait(false);
             if (authRequest != null)
             {
                 var result = await socket.SendAndWaitQueryAsync(authRequest).ConfigureAwait(false);
@@ -581,13 +598,21 @@ namespace CryptoExchange.Net.Clients
             return CallResult.Ok();
         }
 
+
         /// <summary>
         /// Should return the request which can be used to authenticate a socket connection
         /// </summary>
         /// <returns></returns>
-        protected internal virtual Task<Query?> GetAuthenticationRequestAsync(SocketConnection connection) => 
+        protected internal virtual Task<Query?> GetAuthenticationRequestAsync(SocketConnection connection) =>
             Task.FromResult(GetAuthenticationProvider()!.GetAuthenticationQuery(this, connection));
 
+        /// <summary>
+        /// Should return the request which can be used to authenticate a socket connection
+        /// </summary>
+        /// <returns></returns>
+        protected internal virtual Task<Query?> GetAuthenticationRequestAsync(SocketConnection connection, IMessageProcessor? processor) =>
+            GetAuthenticationRequestAsync(connection);
+
         /// <summary>
         /// Adds a system subscription. Used for example to reply to ping requests
         /// </summary>
@@ -645,6 +670,18 @@ namespace CryptoExchange.Net.Clients
                 && (AllowTopicsOnTheSameConnection || !connection.Topics.Contains(topic));
         }
 
+        /// <summary>
+        /// Whether the connection can be used for a new subscription or query with the provided parameters
+        /// </summary>
+        /// <param name="connection">The connection to check</param>
+        /// <param name="address">The address set by the request</param>
+        /// <param name="authenticated">Whether the request needs an authenticated connection</param>
+        /// <param name="processor">The processor requesting a connection</param>
+        /// <param name="topic">Topic of the request</param>
+        /// <returns>True if connection can be used</returns>
+        protected virtual bool ConnectionCanBeUsedFor(SocketConnection connection, string address, bool authenticated, IMessageProcessor? processor, string? topic = null)
+            => ConnectionCanBeUsedFor(connection, address, authenticated, topic);
+
         /// <summary>
         /// Gets a connection for a new subscription or query. Can be an existing if there are open position or a new one.
         /// </summary>
@@ -655,15 +692,36 @@ namespace CryptoExchange.Net.Clients
         /// <param name="topic">The subscription topic, can be provided when multiple of the same topics are not allowed on a connection</param>
         /// <param name="individualSubscriptionCount">The number of individual subscriptions in this subscribe request</param>
         /// <returns></returns>
+        protected virtual Task<CallResult<SocketConnection>> GetSocketConnection(
+            string address,
+            bool authenticated,
+            bool dedicatedRequestConnection,
+            CancellationToken ct,
+            string? topic = null,
+            int individualSubscriptionCount = 1)
+            => GetSocketConnection(address, authenticated, dedicatedRequestConnection, ct, null, topic, individualSubscriptionCount);
+
+        /// <summary>
+        /// Gets a connection for a new subscription or query. Can be an existing if there are open position or a new one.
+        /// </summary>
+        /// <param name="address">The address the socket is for</param>
+        /// <param name="authenticated">Whether the socket should be authenticated</param>
+        /// <param name="dedicatedRequestConnection">Whether a dedicated request connection should be returned</param>
+        /// <param name="ct">Cancellation token</param>
+        /// <param name="topic">The subscription topic, can be provided when multiple of the same topics are not allowed on a connection</param>
+        /// <param name="individualSubscriptionCount">The number of individual subscriptions in this subscribe request</param>
+        /// <param name="processor">The processor requesting a connection</param>
+        /// <returns></returns>
         protected virtual async Task<CallResult<SocketConnection>> GetSocketConnection(
             string address,
             bool authenticated,
             bool dedicatedRequestConnection, 
             CancellationToken ct,
+            IMessageProcessor? processor,
             string? topic = null,
             int individualSubscriptionCount = 1)
         {
-            var socketQuery = _socketConnections.Where(s => ConnectionCanBeUsedFor(s.Value, address, authenticated, topic)).Select(x => x.Value); // Don't ToList this so the query is executed again when called
+            var socketQuery = _socketConnections.Where(s => ConnectionCanBeUsedFor(s.Value, address, authenticated, processor, topic)).Select(x => x.Value); // Don't ToList this so the query is executed again when called
 
             // If all current socket connections are reconnecting or resubscribing wait for that to finish as we can probably use the existing connection
             var delayStart = DateTime.UtcNow;
@@ -862,7 +920,7 @@ namespace CryptoExchange.Net.Clients
                 RateLimitAdmissionCallbackRequest = () => AdmissionOverride.Value,
                 Proxy = ClientOptions.Proxy,
                 Timeout = ApiOptions.SocketNoDataTimeout ?? ClientOptions.SocketNoDataTimeout,
-                ReceiveBufferSize = ClientOptions.ReceiveBufferSize,
+                ReceiveBufferSize = ClientOptions.ReceiveBufferSize
             };
 
         /// <summary>

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>13.0.0</PackageVersion>
-    <AssemblyVersion>13.0.0</AssemblyVersion>
-    <FileVersion>13.0.0</FileVersion>
+    <PackageVersion>13.2.0</PackageVersion>
+    <AssemblyVersion>13.2.0</AssemblyVersion>
+    <FileVersion>13.2.0</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/Objects/Options/SocketApiOptions.cs

@@ -19,6 +19,11 @@ namespace CryptoExchange.Net.Objects.Options
         /// </summary>
         public int? MaxSocketConnections { get; set; }
 
+        /// <summary>
+        /// The time to wait after connecting a socket before sending messages. Can be used for API's which will rate limit if you subscribe directly after connecting.
+        /// </summary>
+        public TimeSpan? DelayAfterConnect { get; set; }
+
         /// <summary>
         /// Set the values of this options on the target options
         /// </summary>
@@ -28,6 +33,7 @@ namespace CryptoExchange.Net.Objects.Options
             item.SocketNoDataTimeout = SocketNoDataTimeout;
             item.AutoTimestamp = AutoTimestamp;
             item.MaxSocketConnections = MaxSocketConnections;
+            item.DelayAfterConnect = DelayAfterConnect;
             return item;
         }
     }

CryptoExchange.Net/SharedApis/CapabilityReferences/SharedCapabilities.Funding.cs

@@ -23,6 +23,10 @@ namespace CryptoExchange.Net.SharedApis
             /// Get user funding history capability.
             /// </summary>
             public static SharedRestCapability<IGetUserFundingHistory, IGetUserFundingHistoryRest> GetUserFundingHistory { get; } = new();
+            /// <summary>
+            /// Subscribe to funding info updates capability.
+            /// </summary>
+            public static SharedCapabilityReference<ISubscribeFundingInfoSocket> SubscribeFundingInfo { get; } = new();
         }
     }
 }

CryptoExchange.Net/SharedApis/Models/SharedIncrementalOrderBook.cs

@@ -0,0 +1,25 @@
+using CryptoExchange.Net.Interfaces;
+
+namespace CryptoExchange.Net.SharedApis
+{
+    /// <summary>
+    /// Order book info
+    /// </summary>
+    public record SharedIncrementalOrderBook : SharedOrderBook
+    {
+        /// <summary>
+        /// The sequence number of the first book update in this update.
+        /// </summary>
+        public long? StartSequenceNumber { get; set; }
+
+        /// <summary>
+        /// ctor
+        /// </summary>
+        public SharedIncrementalOrderBook(SharedQuantityType quantityType, long? startSequenceNumber, long? endSequenceNumber, ISymbolOrderBookEntry[] asks, ISymbolOrderBookEntry[] bids)
+            :base(quantityType, endSequenceNumber, asks, bids)
+        {
+            StartSequenceNumber = startSequenceNumber;
+        }
+    }
+
+}

CryptoExchange.Net/SharedApis/SharedApiClientBase.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
+using System.Threading.Tasks;
 
 namespace CryptoExchange.Net.SharedApis
 {
@@ -104,6 +105,11 @@ namespace CryptoExchange.Net.SharedApis
         SharedCapabilityResolution<T>? GetCapability<T>(SharedCapabilityReference<T> capability, TradingMode tradingMode)
             where T : ISharedApiCapability;
 
+        /// <summary>
+        /// Unsubscribes all subscriptions created by the underlying socket API
+        /// client and closes its subscription connections.
+        /// </summary>
+        Task UnsubscribeAllAsync();
     }
 
     /// <summary>
@@ -209,6 +215,15 @@ namespace CryptoExchange.Net.SharedApis
             return GetCapabilities<T>(tradingMode);
         }
 
+        /// <inheritdoc />
+        public Task UnsubscribeAllAsync()
+        {
+            return Task.WhenAll(
+                _sharedApis
+                    .OfType<ISharedSubscription>()
+                    .Select(x => x.UnsubscribeAllAsync()));
+        }
+
         object? ISharedApiClientResolver.GetCapability(Type capabilityType)
         {
             return _sharedApis

CryptoExchange.Net/SharedApis/SharedUtils.cs

@@ -1,10 +1,12 @@
 using CryptoExchange.Net.Objects;
+using CryptoExchange.Net.Objects.Sockets;
 using Microsoft.Extensions.DependencyInjection;
 using System;
 using System.Collections.Generic;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using System.Threading;
+using System.Threading.Tasks;
 
 namespace CryptoExchange.Net.SharedApis
 {
@@ -624,5 +626,212 @@ namespace CryptoExchange.Net.SharedApis
                 .ParallelEnumerateAsync();
         }
 
+        /// <summary>
+        /// Subscribe to trade updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeTradesSocket>> capabilities,
+            SubscribeTradeRequest request,
+            Action<DataEvent<SharedTrade[]>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToTradeUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to balance updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeBalancesSocket>> capabilities,
+            SubscribeBalancesRequest request,
+            Action<DataEvent<SharedBalance[]>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToBalanceUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to index price updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeIndexPriceSocket>> capabilities,
+            SubscribeIndexPriceRequest request,
+            Action<DataEvent<SharedIndexPrice>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToIndexPriceUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to funding info updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeFundingInfoSocket>> capabilities,
+            SubscribeFundingInfoRequest request,
+            Action<DataEvent<SharedFundingInfo>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToFundingInfoUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to kline updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeKlinesSocket>> capabilities,
+            SubscribeKlineRequest request,
+            Action<DataEvent<SharedKline>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToKlineUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to mark price updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeMarkPriceSocket>> capabilities,
+            SubscribeMarkPriceRequest request,
+            Action<DataEvent<SharedMarkPrice>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToMarkPriceUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to order book updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeOrderBookSocket>> capabilities,
+            SubscribeOrderBookRequest request,
+            Action<DataEvent<SharedOrderBook>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToOrderBookUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to incremental order book updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeIncrementalOrderBookSocket>> capabilities,
+            SubscribeOrderBookRequest request,
+            Action<DataEvent<SharedIncrementalOrderBook>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToIncrementalOrderBookUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to futures order updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeFuturesOrdersSocket>> capabilities,
+            SubscribeFuturesOrderRequest request,
+            Action<DataEvent<SharedFuturesOrderUpdate[]>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToFuturesOrderUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to spot order updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeSpotOrdersSocket>> capabilities,
+            SubscribeSpotOrderRequest request,
+            Action<DataEvent<SharedSpotOrderUpdate[]>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToSpotOrderUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to position updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribePositionsSocket>> capabilities,
+            SubscribePositionRequest request,
+            Action<DataEvent<SharedPosition[]>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToPositionUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to ticker updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeTickerSocket>> capabilities,
+            SubscribeTickerRequest request,
+            Action<DataEvent<SharedTicker>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToTickerUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to all ticker updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeAllTickersSocket>> capabilities,
+            SubscribeAllTickersRequest request,
+            Action<DataEvent<SharedTicker[]>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToAllTickersUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Subscribe to user trade updates for all capabilities in parallel and return results as they arrive
+        /// </summary>
+        public static IAsyncEnumerable<WebSocketResult<UpdateSubscription>> SubscribeAllAsync(
+            this IEnumerable<SharedCapabilityResolution<ISubscribeUserTradesSocket>> capabilities,
+            SubscribeUserTradeRequest request,
+            Action<DataEvent<SharedUserTrade[]>> onData,
+            CancellationToken ct = default)
+        {
+            return capabilities
+                .Select(x => x.Capability.SubscribeToUserTradeUpdatesAsync(request, onData, ct))
+                .ParallelEnumerateAsync();
+        }
+
+        /// <summary>
+        /// Wait for all results from an IAsyncEnumerable and return them as an array
+        /// </summary>
+        public static async Task<T[]> WaitAllAsync<T>(this IAsyncEnumerable<T> enumerable)
+        {
+            var result = new List<T>();
+            await foreach (var itemResult in enumerable.ConfigureAwait(false))
+                result.Add(itemResult);
+
+            return result.ToArray();
+        }
     }
 }

CryptoExchange.Net/SharedApis/V2/Funding/SubscribeFundingInfo/ISubscribeFundingInfoSocket.cs

@@ -0,0 +1,28 @@
+using CryptoExchange.Net.Objects;
+using CryptoExchange.Net.Objects.Sockets;
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace CryptoExchange.Net.SharedApis
+{
+    /// <summary>
+    /// Operation for subscribing to funding info updates
+    /// </summary>
+    public interface ISubscribeFundingInfoSocket : ISharedSubscription
+    {
+        /// <summary>
+        /// Funding info subscription options
+        /// </summary>
+        SubscribeFundingInfoOptions SubscribeFundingInfoOptions { get; }
+
+        /// <summary>
+        /// Subscribe to funding info updates
+        /// </summary>
+        /// <param name="request">Request info</param>
+        /// <param name="handler">Update handler</param>
+        /// <param name="ct">Cancellation token, can be used to stop the updates</param>
+        /// <returns></returns>
+        Task<WebSocketResult<UpdateSubscription>> SubscribeToFundingInfoUpdatesAsync(SubscribeFundingInfoRequest request, Action<DataEvent<SharedFundingInfo>> handler, CancellationToken ct = default);
+    }
+}

CryptoExchange.Net/SharedApis/V2/Funding/SubscribeFundingInfo/SubscribeFundingInfoOptions.cs

@@ -0,0 +1,29 @@
+using CryptoExchange.Net.Objects;
+using System;
+using System.Linq;
+
+namespace CryptoExchange.Net.SharedApis
+{
+    /// <summary>
+    /// Options for subscribing to funding info updates
+    /// </summary>
+    public class SubscribeFundingInfoOptions : CapabilityOptions<SubscribeFundingInfoRequest, ISubscribeFundingInfoSocket>
+    {
+        /// <inheritdoc />
+        public override string Description => "Subscribe to funding info updates for a symbol";
+
+        private static readonly RequestParameterDescription[] _defaultParameterRules = new[]
+        {
+            RequestParameterRule<SubscribeFundingInfoRequest>.Optional(x => x.Symbol, "The symbol to subscribe to", new SharedSymbol(TradingMode.PerpetualLinear, "ETH", "USDT")),
+            RequestParameterRule<SubscribeFundingInfoRequest>.Optional(x => x.Symbols, "The symbols to subscribe to", new[] { new SharedSymbol(TradingMode.PerpetualLinear, "ETH", "USDT") }),
+        };
+
+        /// <summary>
+        /// ctor
+        /// </summary>
+        public SubscribeFundingInfoOptions(string exchange, bool needsAuthentication)
+            : base(exchange, needsAuthentication, nameof(ISubscribeFundingInfoSocket.SubscribeToFundingInfoUpdatesAsync), _defaultParameterRules, SharedTradingModeSets.Futures)
+        {
+        }
+    }
+}

CryptoExchange.Net/SharedApis/V2/Funding/SubscribeFundingInfo/SubscribeFundingInfoRequest.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+
+namespace CryptoExchange.Net.SharedApis
+{
+    /// <summary>
+    /// Request to subscribe to  funding info updates for a symbol
+    /// </summary>
+    public record SubscribeFundingInfoRequest : SharedSymbolRequest
+    {
+        /// <summary>
+        /// ctor
+        /// </summary>
+        /// <param name="symbol">The symbol to subscribe to</param>
+        /// <param name="exchangeParameters">Exchange specific parameters</param>
+        public SubscribeFundingInfoRequest(SharedSymbol symbol, ExchangeParameters? exchangeParameters = null)
+            : base(symbol, exchangeParameters)
+        {
+        }
+
+        /// <summary>
+        /// ctor
+        /// </summary>
+        /// <param name="symbols">The symbols to subscribe to</param>
+        /// <param name="exchangeParameters">Exchange specific parameters</param>
+        public SubscribeFundingInfoRequest(IEnumerable<SharedSymbol> symbols, ExchangeParameters? exchangeParameters = null)
+            : base(symbols, exchangeParameters)
+        {
+        }
+    }
+}

CryptoExchange.Net/SharedApis/V2/ISharedSubscription.cs

@@ -1,13 +1,19 @@
 using System;
 using System.Collections.Generic;
 using System.Text;
+using System.Threading.Tasks;
 
 namespace CryptoExchange.Net.SharedApis
 {
     /// <summary>
-    /// Shared WebSocket API subscription capabitlity
+    /// Shared WebSocket API subscription capability
     /// </summary>
     public interface ISharedSubscription : ISharedSocket
     {
+        /// <summary>
+        /// Unsubscribes all subscriptions created by the underlying socket API
+        /// client and closes its subscription connections.
+        /// </summary>
+        Task UnsubscribeAllAsync();
     }
 }

CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/ISubscribeIncrementalOrderBook.cs

@@ -14,7 +14,7 @@ namespace CryptoExchange.Net.SharedApis
         /// <summary>
         /// Order book subscription options
         /// </summary>
-        SubscribeOrderBookOptions SubscribeOrderBookOptions { get; }
+        SubscribeIncrementalOrderBookOptions SubscribeIncrementalOrderBookOptions { get; }
 
         /// <summary>
         /// Subscribe to incremental order book updates for a symbol
@@ -23,6 +23,6 @@ namespace CryptoExchange.Net.SharedApis
         /// <param name="handler">Update handler</param>
         /// <param name="ct">Cancellation token, can be used to stop the updates</param>
         /// <returns></returns>
-        Task<WebSocketResult<UpdateSubscription>> SubscribeToOrderBookUpdatesAsync(SubscribeOrderBookRequest request, Action<DataEvent<SharedOrderBook>> handler, CancellationToken ct = default);
+        Task<WebSocketResult<UpdateSubscription>> SubscribeToIncrementalOrderBookUpdatesAsync(SubscribeOrderBookRequest request, Action<DataEvent<SharedIncrementalOrderBook>> handler, CancellationToken ct = default);
     }
 }

CryptoExchange.Net/SharedApis/V2/OrderBooks/SubscribeIncrementalOrderBook/SubscribeIncrementalOrderBookOptions.cs

@@ -33,7 +33,7 @@ namespace CryptoExchange.Net.SharedApis
         /// ctor
         /// </summary>
         public SubscribeIncrementalOrderBookOptions(string exchange, bool needsAuthentication, int[] limits, SharedOrderBookSubscriptionType updateType)
-            : base(exchange, needsAuthentication, nameof(ISubscribeIncrementalOrderBookSocket.SubscribeToOrderBookUpdatesAsync), _defaultParameterRules)
+            : base(exchange, needsAuthentication, nameof(ISubscribeIncrementalOrderBookSocket.SubscribeToIncrementalOrderBookUpdatesAsync), _defaultParameterRules)
         {
             SupportedLimits = limits;
             UpdateType = updateType;

CryptoExchange.Net/Sockets/Default/SocketConnection.cs

@@ -424,6 +424,9 @@ namespace CryptoExchange.Net.Sockets.Default
             {
                 try
                 {
+                    if ((ApiClient.ApiOptions.DelayAfterConnect ?? ApiClient.ClientOptions.DelayAfterConnect) != TimeSpan.Zero)
+                        await Task.Delay(ApiClient.ApiOptions.DelayAfterConnect ?? ApiClient.ClientOptions.DelayAfterConnect).ConfigureAwait(false);
+
                     var reconnectSuccessful = await ProcessReconnectAsync().ConfigureAwait(false);
                     if (!reconnectSuccessful.Success)
                     {
@@ -616,7 +619,17 @@ namespace CryptoExchange.Net.Sockets.Default
         /// Connect the websocket
         /// </summary>
         /// <returns></returns>
-        public async Task<CallResult> ConnectAsync(CancellationToken ct) => await _socket.ConnectAsync(ct).ConfigureAwait(false);
+        public async Task<CallResult> ConnectAsync(CancellationToken ct)
+        {
+            var result = await _socket.ConnectAsync(ct).ConfigureAwait(false);
+            if (!result.Success)
+                return result;
+
+            if ((ApiClient.ApiOptions.DelayAfterConnect ?? ApiClient.ClientOptions.DelayAfterConnect) != TimeSpan.Zero)
+                await Task.Delay(ApiClient.ApiOptions.DelayAfterConnect ?? ApiClient.ClientOptions.DelayAfterConnect).ConfigureAwait(false);
+
+            return result;
+        }
 
         /// <summary>
         /// Retrieve the underlying socket
@@ -689,7 +702,7 @@ namespace CryptoExchange.Net.Sockets.Default
             if (subscription.CancellationTokenRegistration.HasValue)
                 subscription.CancellationTokenRegistration.Value.Dispose();
 
-            bool anyDuplicateSubscription = _listeners.OfType<Subscription>().Any(x => x != subscription && x.MessageRouter.Routes.All(l => subscription.MessageRouter.ContainsCheck(l)));
+            bool anyDuplicateSubscription = SubscriptionIsCovered(subscription);
             bool shouldCloseConnection = _listeners.OfType<Subscription>().All(r => !r.UserSubscription || r.Status == SubscriptionStatus.Closing || r.Status == SubscriptionStatus.Closed) && !DedicatedRequestConnection.IsDedicatedRequestConnection;
 
             if (!anyDuplicateSubscription)
@@ -1056,6 +1069,32 @@ namespace CryptoExchange.Net.Sockets.Default
             return CallResult.Ok();
         }
 
+        /// <summary>
+        /// Whether there is currently a subscription covering all the routes the subscription lists
+        /// </summary>
+        protected bool SubscriptionIsCovered(Subscription subscription)
+            => _listeners.OfType<Subscription>().Any(
+                x => x != subscription
+                && x.Active
+                && subscription.MessageRouter.Routes.All(l => x.MessageRouter.ContainsCheck(l)));
+
+        /// <summary>
+        /// Whether there is a subscription earlier in the list covering all the routes the subscription lists
+        /// </summary>
+        protected bool IsCoveredByEarlierSubscription(Subscription subscription)
+        {
+            foreach (var other in _listeners.OfType<Subscription>())
+            {
+                if (other == subscription)
+                    return false;
+
+                if (other.Active && subscription.MessageRouter.Routes.All(x => other.MessageRouter.ContainsCheck(x)))
+                    return true;
+            }
+
+            return false;
+        }
+
         /// <summary>
         /// Try to subscribe a new subscription by sending the subscribe query and wait for the result as needed
         /// </summary>
@@ -1090,11 +1129,11 @@ namespace CryptoExchange.Net.Sockets.Default
                 return WebSocketResult.Ok(ApiClient.Exchange, SocketId, default, 0, ConnectionUriString);
             }
 
-            var subCompleteHandler = () =>
+            var subCompleteHandler = (bool success) =>
             {
-                subscription.Status = subQuery.Success ? SubscriptionStatus.Subscribed : SubscriptionStatus.Pending;
+                subscription.Status = success ? SubscriptionStatus.Subscribed : SubscriptionStatus.Pending;
                 subscription.HandleSubQueryResponse(this, subQuery.Response);
-                if (newSubscription && subQuery.Success)
+                if (newSubscription && success)
                 {
                     subscription.TokenExpired += HandleTokenExpired;
                     if (subCancelToken != default)
@@ -1109,6 +1148,14 @@ namespace CryptoExchange.Net.Sockets.Default
             };
             subQuery.OnComplete = subCompleteHandler;
 
+            // For duplicate subscription don't send another subscribe request but just handle it internally
+            // Unsubscribe also doesn't unsubscribe when there is still a duplicate subscription running
+            if (IsCoveredByEarlierSubscription(subscription))
+            {
+                subQuery.Complete();
+                return WebSocketResult.Ok(ApiClient.Exchange, SocketId, default, subQuery.Id, ConnectionUriString);
+            }
+
             var subQueryResult = await SendAndWaitQueryAsync(subQuery).ConfigureAwait(false);
             if (!subQueryResult.Success)
             {
@@ -1119,9 +1166,6 @@ namespace CryptoExchange.Net.Sockets.Default
                 return WebSocketResult.Fail(ApiClient.Exchange, subQueryResult.Error!);
             }
 
-            if (!subQuery.ExpectsResponse)
-                subCompleteHandler();
-
             return subQueryResult;
         }
 

CryptoExchange.Net/Sockets/HighPerf/HighPerfSocketConnection.cs

@@ -198,8 +198,13 @@ namespace CryptoExchange.Net.Sockets.HighPerf
         {
             var result = await _socket.ConnectAsync(ct).ConfigureAwait(false);
             if (result.Success)
+            {
                 _processTask = ProcessAsync(_cts.Token);
 
+                if ((ApiClient.ApiOptions.DelayAfterConnect ?? ApiClient.ClientOptions.DelayAfterConnect) != TimeSpan.Zero)
+                    await Task.Delay(ApiClient.ApiOptions.DelayAfterConnect ?? ApiClient.ClientOptions.DelayAfterConnect).ConfigureAwait(false);
+            }
+
             return result;
         }
 

CryptoExchange.Net/Sockets/Query.cs

@@ -124,7 +124,7 @@ namespace CryptoExchange.Net.Sockets
         /// <summary>
         /// On complete callback
         /// </summary>
-        public Action? OnComplete { get; set; }
+        public Action<bool>? OnComplete { get; set; }
 
         /// <inheritdoc />
         public event Action? OnMessageRouterUpdated;
@@ -157,8 +157,7 @@ namespace CryptoExchange.Net.Sockets
             }
             else
             {
-                Completed = true;
-                _event.Set();
+                Complete();
             }
         }
 
@@ -175,6 +174,11 @@ namespace CryptoExchange.Net.Sockets
         /// </summary>
         public abstract void Timeout();
 
+        /// <summary>
+        /// Mark request as successfully completed
+        /// </summary>
+        public abstract void Complete();
+
         /// <summary>
         /// Mark request as failed
         /// </summary>
@@ -248,7 +252,7 @@ namespace CryptoExchange.Net.Sockets
             {
                 Completed = true;
                 _event.Set();
-                OnComplete?.Invoke();
+                OnComplete?.Invoke(Success);
             }
 
             return handled;
@@ -267,7 +271,19 @@ namespace CryptoExchange.Net.Sockets
 
             Completed = true;
             _event.Set();
-            OnComplete?.Invoke();
+            OnComplete?.Invoke(Success);
+        }
+
+        /// <inheritdoc />
+        public override void Complete()
+        {
+            if (Completed)
+                return;
+
+            Result = CallResult<THandlerResponse>.Ok(default!);
+            Completed = true;
+            _event.Set();
+            OnComplete?.Invoke(Success);
         }
 
         /// <inheritdoc />
@@ -280,7 +296,7 @@ namespace CryptoExchange.Net.Sockets
             Completed = true;
 
             _event.Set();
-            OnComplete?.Invoke();
+            OnComplete?.Invoke(Success);
         }
     }
 }

Examples/BlazorClient/BlazorClient.csproj

@@ -5,37 +5,36 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Binance.Net" Version="13.5.0" />
-    <PackageReference Include="Bitfinex.Net" Version="11.4.0" />
-    <PackageReference Include="BitMart.Net" Version="4.4.0" />
-    <PackageReference Include="BloFin.Net" Version="3.4.0" />
-    <PackageReference Include="Bybit.Net" Version="7.5.0" />
-    <PackageReference Include="CoinEx.Net" Version="11.4.0" />
-    <PackageReference Include="CoinW.Net" Version="3.4.0" />
-    <PackageReference Include="CryptoCom.Net" Version="4.4.0" />
-    <PackageReference Include="DeepCoin.Net" Version="4.4.0" />
-    <PackageReference Include="GateIo.Net" Version="4.6.0" />
-    <PackageReference Include="HyperLiquid.Net" Version="5.7.0" />
-    <PackageReference Include="JK.BingX.Net" Version="4.5.0" />
-    <PackageReference Include="JK.Bitget.Net" Version="4.5.0" />
-    <PackageReference Include="JK.Mexc.Net" Version="6.6.0" />
-    <PackageReference Include="JK.OKX.Net" Version="5.4.0" />
-    <PackageReference Include="Jkorf.Aster.Net" Version="4.4.0" />
-    <PackageReference Include="JKorf.BitMEX.Net" Version="4.4.0" />
-    <PackageReference Include="JKorf.Coinbase.Net" Version="4.5.0" />
-    <PackageReference Include="JKorf.HTX.Net" Version="9.5.0" />
-    <PackageReference Include="JKorf.Lighter.Net" Version="1.5.0" />
-    <PackageReference Include="JKorf.Upbit.Net" Version="3.4.0" />
-    <PackageReference Include="KrakenExchange.Net" Version="8.4.0" />
-    <PackageReference Include="Kucoin.Net" Version="9.5.0" />
-    <PackageReference Include="LBank.Net" Version="1.1.0" />
-    <PackageReference Include="Pionex.Net" Version="1.2.0" />
+    <PackageReference Include="Binance.Net" Version="13.6.0" />
+    <PackageReference Include="Bitfinex.Net" Version="11.6.0" />
+    <PackageReference Include="BitMart.Net" Version="4.5.0" />
+    <PackageReference Include="BloFin.Net" Version="3.5.0" />
+    <PackageReference Include="Bybit.Net" Version="7.6.0" />
+    <PackageReference Include="CoinEx.Net" Version="11.5.0" />
+    <PackageReference Include="CoinW.Net" Version="3.5.0" />
+    <PackageReference Include="CryptoCom.Net" Version="4.5.0" />
+    <PackageReference Include="DeepCoin.Net" Version="4.5.0" />
+    <PackageReference Include="GateIo.Net" Version="4.7.0" />
+    <PackageReference Include="HyperLiquid.Net" Version="5.8.0" />
+    <PackageReference Include="JK.BingX.Net" Version="4.6.0" />
+    <PackageReference Include="JK.Bitget.Net" Version="4.6.0" />
+    <PackageReference Include="JK.Mexc.Net" Version="6.7.0" />
+    <PackageReference Include="JK.OKX.Net" Version="5.5.0" />
+    <PackageReference Include="Jkorf.Aster.Net" Version="4.5.0" />
+    <PackageReference Include="JKorf.Coinbase.Net" Version="4.6.0" />
+    <PackageReference Include="JKorf.HTX.Net" Version="9.6.0" />
+    <PackageReference Include="JKorf.Lighter.Net" Version="1.6.0" />
+    <PackageReference Include="JKorf.Upbit.Net" Version="3.5.0" />
+    <PackageReference Include="KrakenExchange.Net" Version="8.5.0" />
+    <PackageReference Include="Kucoin.Net" Version="9.6.0" />
+    <PackageReference Include="LBank.Net" Version="1.2.0" />
+    <PackageReference Include="Pionex.Net" Version="1.3.0" />
     <PackageReference Include="Serilog.AspNetCore" Version="10.0.0" />
-    <PackageReference Include="Tapbit.Net" Version="1.0.0" />
-    <PackageReference Include="Toobit.Net" Version="4.4.0" />
-    <PackageReference Include="Weex.Net" Version="2.4.0" />
-    <PackageReference Include="WhiteBit.Net" Version="4.4.0" />
-    <PackageReference Include="XT.Net" Version="4.5.0" />
+    <PackageReference Include="Tapbit.Net" Version="1.1.0" />
+    <PackageReference Include="Toobit.Net" Version="4.5.0" />
+    <PackageReference Include="Weex.Net" Version="2.5.0" />
+    <PackageReference Include="WhiteBit.Net" Version="4.5.0" />
+    <PackageReference Include="XT.Net" Version="4.6.0" />
   </ItemGroup>
 
 </Project>

Examples/BlazorClient/Pages/Index.razor

@@ -5,7 +5,6 @@
 @inject IBitfinexRestClient bitfinexClient
 @inject IBitgetRestClient bitgetClient
 @inject IBitMartRestClient bitmartClient
-@inject IBitMEXRestClient bitmexClient
 @inject IBloFinRestClient bloFinClient
 @inject IBybitRestClient bybitClient
 @inject ICoinbaseRestClient coinbaseClient
@@ -47,7 +46,6 @@
         var bitfinexTask = bitfinexClient.ExchangeApi.ExchangeData.GetTickerAsync("tBTCUSD");
         var bitgetTask = bitgetClient.SpotApiV2.ExchangeData.GetTickersAsync("BTCUSDT");
         var bitmartTask = bitmartClient.SpotApi.ExchangeData.GetTickerAsync("BTC_USDT");
-        var bitmexTask = bitmexClient.ExchangeApi.ExchangeData.GetSymbolsAsync("XBT_USDT");
         var bloFinTask = bloFinClient.FuturesApi.ExchangeData.GetTickersAsync("BTC-USDT");
         var bybitTask = bybitClient.V5Api.ExchangeData.GetSpotTickersAsync("BTCUSDT");
         var coinbaseTask = coinbaseClient.AdvancedTradeApi.ExchangeData.GetSymbolAsync("BTC-USDT");
@@ -71,7 +69,7 @@
         var whitebitTask = whitebitClient.V4Api.ExchangeData.GetTickersAsync();
         var xtTask = xtClient.SpotApi.ExchangeData.GetTickersAsync("btc_usdt");
 
-        await Task.WhenAll(asterTask, binanceTask, bingXTask, bitfinexTask, bitgetTask, bitmartTask, bloFinTask, bitmexTask, bybitTask, coinexTask, coinWTask, deepCoinTask, gateioTask, 
+        await Task.WhenAll(asterTask, binanceTask, bingXTask, bitfinexTask, bitgetTask, bitmartTask, bloFinTask, bybitTask, coinexTask, coinWTask, deepCoinTask, gateioTask, 
                            htxTask, krakenTask, kucoinTask, lBankTask, mexcTask, okxTask, pionexTask, toobitTask, upbitTask, weexTask, whitebitTask, xtTask);
 
         if (asterTask.Result.Success)
@@ -92,9 +90,6 @@
         if (bitmartTask.Result.Success)
             _prices.Add("BitMart", bitmartTask.Result.Data.LastPrice);
 
-        if (bitmexTask.Result.Success)
-            _prices.Add("BitMEX", bitmexTask.Result.Data.First().LastPrice);
-
         if (bloFinTask.Result.Success)
             _prices.Add("BloFin", bloFinTask.Result.Data.First().LastPrice);
 

Examples/BlazorClient/Pages/LiveData.razor

@@ -5,7 +5,6 @@
 @inject IBitfinexSocketClient bitfinexSocketClient
 @inject IBitgetSocketClient bitgetSocketClient
 @inject IBitMartSocketClient bitmartSocketClient
-@inject IBitMEXSocketClient bitmexSocketClient
 @inject IBloFinSocketClient bloFinSocketClient
 @inject IBybitSocketClient bybitSocketClient
 @inject ICoinbaseSocketClient coinbaseSocketClient
@@ -56,7 +55,6 @@
             bitfinexSocketClient.ExchangeApi.SubscribeToTickerUpdatesAsync("tETHBTC", data => UpdateData("Bitfinex", data.Data.LastPrice)),
             bitgetSocketClient.SpotApiV2.SubscribeToTickerUpdatesAsync("ETHBTC", data => UpdateData("Bitget", data.Data.First().LastPrice)),
             bitmartSocketClient.SpotApi.SubscribeToTickerUpdatesAsync("ETH_BTC", data => UpdateData("BitMart", data.Data.LastPrice)),
-            bitmexSocketClient.ExchangeApi.SubscribeToSymbolUpdatesAsync("ETH_XBT", data => UpdateData("BitMEX", data.Data.LastPrice ?? 0)),
             // BloFin doesn't support the ETH/BTC pair
             //bloFinSocketClient.FuturesApi.SubscribeToTickerUpdatesAsync("ETH-BTC", data => UpdateData("BloFin", data.Data.LastPrice)),
             bybitSocketClient.V5SpotApi.SubscribeToTickerUpdatesAsync("ETHBTC", data => UpdateData("Bybit", data.Data.LastPrice)),

Examples/BlazorClient/Pages/OrderBooks.razor

@@ -7,7 +7,6 @@
 @using Bitfinex.Net.Interfaces
 @using Bitget.Net.Interfaces;
 @using BitMart.Net.Interfaces;
-@using BitMEX.Net.Interfaces;
 @using BloFin.Net.Interfaces;
 @using Bybit.Net.Interfaces
 @using CoinEx.Net.Interfaces
@@ -40,7 +39,6 @@
 @inject IBitfinexOrderBookFactory bitfinexFactory
 @inject IBitgetOrderBookFactory bitgetFactory
 @inject IBitMartOrderBookFactory bitmartFactory
-@inject IBitMEXOrderBookFactory bitmexFactory
 @inject IBloFinOrderBookFactory bloFinFactory
 @inject IBybitOrderBookFactory bybitFactory
 @inject ICoinbaseOrderBookFactory coinbaseFactory
@@ -103,7 +101,6 @@
                 { "Bitfinex", bitfinexFactory.Create("tETHBTC") },
                 { "Bitget", bitgetFactory.CreateSpot("ETHBTC") },
                 { "BitMart", bitmartFactory.CreateSpot("ETH_BTC", null) },
-                { "BitMEX", bitmexFactory.Create("ETH_XBT") },
                 { "BloFin", bloFinFactory.CreateFutures("ETH-USDT") },
                 { "Bybit", bybitFactory.Create("ETHBTC", Bybit.Net.Enums.Category.Spot) },
                 { "Coinbase", coinbaseFactory.Create("ETH-BTC", null) },

Examples/BlazorClient/Pages/SpotClient.razor

@@ -1,7 +1,7 @@
 @page "/SpotClient"
 @using CryptoExchange.Net.SharedApis
 @using System.Diagnostics
-@inject IEnumerable<ISpotTickerRestClient> restClients
+@inject IEnumerable<IGetTicker> restClients
 
 <h3>ETH-BTC prices:</h3>
 @foreach(var price in _prices.OrderBy(p => p.Key))
@@ -15,7 +15,7 @@
     protected override async Task OnInitializedAsync()
     {
         var symbol = new SharedSymbol(TradingMode.Spot, "ETH", "BTC");
-        var tasks = restClients.Select(x => x.GetSpotTickerAsync(new GetTickerRequest(symbol)));
+        var tasks = restClients.Where(x => x.SupportedTradingModes.Contains(TradingMode.Spot)).Select(x => x.GetTickerAsync(new GetTickerRequest(symbol)));
         await foreach (var ticker in ParallelEnumerateAsync(tasks))
         {
             if (ticker.Success)

Examples/BlazorClient/Pages/Trackers.razor

@@ -6,7 +6,6 @@
 @using BingX.Net.Interfaces
 @using Bitfinex.Net.Interfaces
 @using Bitget.Net.Interfaces;
-@using BitMEX.Net.Interfaces;
 @using BitMart.Net.Interfaces;
 @using BloFin.Net.Interfaces
 @using Bybit.Net.Interfaces
@@ -40,7 +39,6 @@
 @inject IBitfinexTrackerFactory bitfinexFactory
 @inject IBitgetTrackerFactory bitgetFactory
 @inject IBitMartTrackerFactory bitmartFactory
-@inject IBitMEXTrackerFactory bitmexFactory
 @inject IBloFinTrackerFactory bloFinFactory
 @inject IBybitTrackerFactory bybitFactory
 @inject ICoinbaseTrackerFactory coinbaseFactory
@@ -96,7 +94,6 @@
                 { bitfinexFactory.CreateTradeTracker(symbol, period: TimeSpan.FromMinutes(5)) },
                 { bitgetFactory.CreateTradeTracker(symbol, period: TimeSpan.FromMinutes(5)) },
                 { bitmartFactory.CreateTradeTracker(symbol, period: TimeSpan.FromMinutes(5)) },
-                { bitmexFactory.CreateTradeTracker(symbol, period: TimeSpan.FromMinutes(5)) },
                 { bloFinFactory.CreateTradeTracker(futuresSymbol, period: TimeSpan.FromMinutes(5)) },
                 { bybitFactory.CreateTradeTracker(symbol, period: TimeSpan.FromMinutes(5)) },
                 { coinbaseFactory.CreateTradeTracker(symbol, period: TimeSpan.FromMinutes(5)) },

Examples/BlazorClient/Startup.cs

@@ -39,7 +39,6 @@ namespace BlazorClient
             services.AddBitfinex();
             services.AddBitget();
             services.AddBitMart();
-            services.AddBitMEX();
             services.AddBloFin();
             services.AddBybit();
             services.AddCoinbase();

Examples/BlazorClient/_Imports.razor

@@ -14,7 +14,6 @@
 @using Bitfinex.Net.Interfaces.Clients;
 @using Bitget.Net.Interfaces.Clients;
 @using BitMart.Net.Interfaces.Clients;
-@using BitMEX.Net.Interfaces.Clients;
 @using BloFin.Net.Interfaces.Clients;
 @using Bybit.Net.Interfaces.Clients;
 @using Coinbase.Net.Interfaces.Clients;

Examples/ConsoleClient/ConsoleClient.csproj

@@ -8,8 +8,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Binance.Net" Version="12.13.0" />
-    <PackageReference Include="Bybit.Net" Version="6.13.0" />
+    <PackageReference Include="Binance.Net" Version="13.6.0" />
+    <PackageReference Include="Bybit.Net" Version="7.6.0" />
   </ItemGroup>
 
 </Project>

Examples/ConsoleClient/Program.cs

@@ -25,18 +25,22 @@ var exchanges = new Dictionary<string, ExchangeClients>(StringComparer.OrdinalIg
 {
     ["binance"] = new ExchangeClients(
         "Binance",
-        binanceRest.SpotApi.SharedClient,
-        binanceRest.SpotApi.SharedClient,
-        binanceRest.SpotApi.SharedClient,
-        binanceRest.SpotApi.SharedClient,
-        binanceSocket.SpotApi.SharedClient),
+        binanceRest.SpotApi.SharedApi,
+        binanceRest.SpotApi.SharedApi,
+        binanceRest.SpotApi.SharedApi,
+        binanceRest.SpotApi.SharedApi,
+        binanceRest.SpotApi.SharedApi,
+        binanceRest.SpotApi.SharedApi,
+        binanceSocket.SpotApi.SharedApi),
     ["bybit"] = new ExchangeClients(
         "Bybit",
-        bybitRest.V5Api.SharedClient,
-        bybitRest.V5Api.SharedClient,
-        bybitRest.V5Api.SharedClient,
-        bybitRest.V5Api.SharedClient,
-        bybitSocket.V5SpotApi.SharedClient)
+        bybitRest.V5Api.SharedApi,
+        bybitRest.V5Api.SharedApi,
+        bybitRest.V5Api.SharedApi,
+        bybitRest.V5Api.SharedApi,
+        bybitRest.V5Api.SharedApi,
+        bybitRest.V5Api.SharedApi,
+        bybitSocket.V5SpotApi.SharedApi)
 };
 
 PrintHelp();
@@ -98,7 +102,7 @@ async Task PrintPricesAsync(string[] args)
     var symbol = GetSymbol(args, 1);
     var tasks = exchanges.Values.Select(async exchange =>
     {
-        var result = await exchange.TickerRest.GetSpotTickerAsync(new GetTickerRequest(symbol));
+        var result = await exchange.TickerRest.GetTickerAsync(new GetTickerRequest(symbol));
         if (!result.Success)
         {
             Console.WriteLine($"{exchange.Name,-8} error: {result.Error}");
@@ -171,7 +175,7 @@ async Task PrintOpenOrdersAsync(string[] args)
     var exchange = GetExchange(args, 1);
     var symbol = GetSymbol(args, 2);
 
-    var result = await exchange.OrderRest.GetOpenSpotOrdersAsync(new GetOpenOrdersRequest(symbol));
+    var result = await exchange.GetOpenOrdersRest.GetOpenSpotOrdersAsync(new GetOpenOrdersRequest(symbol));
     if (!result.Success)
     {
         Console.WriteLine($"Open orders request failed: {result.Error}");
@@ -203,23 +207,9 @@ async Task PlaceLimitOrderAsync(string[] args)
         SharedQuantity.Base(quantity),
         price,
         SharedTimeInForce.GoodTillCanceled,
-        exchange.OrderRest.GenerateClientOrderId());
+        exchange.PlaceOrderRest.GenerateClientOrderId());
 
-    var validationError = exchange.OrderRest.PlaceSpotOrderOptions.ValidateRequest(
-        exchange.Name,
-        request,
-        TradingMode.Spot,
-        exchange.OrderRest.SupportedTradingModes,
-        exchange.OrderRest.SpotSupportedOrderTypes,
-        exchange.OrderRest.SpotSupportedTimeInForce,
-        exchange.OrderRest.SpotSupportedOrderQuantity);
-    if (validationError != null)
-    {
-        Console.WriteLine($"Order request is not valid for {exchange.Name}: {validationError}");
-        return;
-    }
-
-    var result = await exchange.OrderRest.PlaceSpotOrderAsync(request);
+    var result = await exchange.PlaceOrderRest.PlaceSpotOrderAsync(request);
     Console.WriteLine(result.Success
         ? $"Order placed. Id: {result.Data.Id}"
         : $"Order failed: {result.Error}");
@@ -233,7 +223,7 @@ async Task CancelOrderAsync(string[] args)
     if (string.IsNullOrWhiteSpace(orderId))
         throw new ArgumentException("Missing order id. Example: cancel-order binance BTC USDT 123456");
 
-    var result = await exchange.OrderRest.CancelSpotOrderAsync(new CancelOrderRequest(symbol, orderId));
+    var result = await exchange.CancelOrderRest.CancelSpotOrderAsync(new CancelOrderRequest(symbol, orderId));
     Console.WriteLine(result.Success
         ? $"Order canceled. Id: {result.Data.Id}"
         : $"Cancel failed: {result.Error}");
@@ -296,8 +286,10 @@ static void PrintHelp()
 
 internal record ExchangeClients(
     string Name,
-    ISpotTickerRestClient TickerRest,
-    IOrderBookRestClient OrderBookRest,
-    IBalanceRestClient BalanceRest,
-    ISpotOrderRestClient OrderRest,
-    ITickerSocketClient TickerSocket);
+    IGetTickerRest TickerRest,
+    IGetOrderBookRest OrderBookRest,
+    IGetBalancesRest BalanceRest,
+    IPlaceSpotOrderRest PlaceOrderRest,
+    IGetOpenSpotOrdersRest GetOpenOrdersRest,
+    ICancelSpotOrderRest CancelOrderRest,
+    ISubscribeTickerSocket TickerSocket);

Examples/SharedClients/Program.cs

@@ -5,13 +5,13 @@ using CryptoExchange.Net.SharedApis;
 using OKX.Net.Clients;
 
 var symbol = new SharedSymbol(TradingMode.Spot, "ETH", "USDT");
-var binanceSpotRestClient = new BinanceRestClient().SpotApi.SharedClient;
-var okxSpotRestClient = new OKXRestClient().UnifiedApi.SharedClient;
-var bitmartSpotRestClient = new BitMartRestClient().SpotApi.SharedClient;
+var binanceSpotRestClient = new BinanceRestClient().SpotApi.SharedApi;
+var okxSpotRestClient = new OKXRestClient().UnifiedApi.SharedApi;
+var bitmartSpotRestClient = new BitMartRestClient().SpotApi.SharedApi;
 
-var binanceSpotSocketClient = new BinanceSocketClient().SpotApi.SharedClient;
-var okxSpotSocketClient = new OKXSocketClient().UnifiedApi.SharedClient;
-var bitmartSpotSocketClient = new BitMartSocketClient().SpotApi.SharedClient;
+var binanceSpotSocketClient = new BinanceSocketClient().SpotApi.SharedApi;
+var okxSpotSocketClient = new OKXSocketClient().UnifiedApi.SharedApi;
+var bitmartSpotSocketClient = new BitMartSocketClient().SpotApi.SharedApi;
 
 await GetLastTradePriceAsync(binanceSpotRestClient, symbol);
 await GetLastTradePriceAsync(okxSpotRestClient, symbol);
@@ -31,9 +31,9 @@ Console.ReadLine();
 foreach (var subscription in subscriptions)
     await subscription.CloseAsync();
 
-async Task GetLastTradePriceAsync(ISpotTickerRestClient client, SharedSymbol symbol)
+async Task GetLastTradePriceAsync(IGetTickerRest client, SharedSymbol symbol)
 {
-    var result = await client.GetSpotTickerAsync(new GetTickerRequest(symbol));
+    var result = await client.GetTickerAsync(new GetTickerRequest(symbol));
     if (!result.Success)
     {
         Console.WriteLine($"Failed to get ticker: {result.Error}");
@@ -43,7 +43,7 @@ async Task GetLastTradePriceAsync(ISpotTickerRestClient client, SharedSymbol sym
     Console.WriteLine($"{client.Exchange} {result.Data.Symbol}: {result.Data.LastPrice}");
 }
 
-async Task SubscribeTickerUpdatesAsync(ITickerSocketClient client, SharedSymbol symbol, ICollection<UpdateSubscription> subscriptions)
+async Task SubscribeTickerUpdatesAsync(ISubscribeTickerSocket client, SharedSymbol symbol, ICollection<UpdateSubscription> subscriptions)
 {
     var result = await client.SubscribeToTickerUpdatesAsync(new SubscribeTickerRequest(symbol), update =>
     {

Examples/SharedClients/SharedClients.csproj

@@ -8,9 +8,9 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Binance.Net" Version="12.13.0" />
-    <PackageReference Include="BitMart.Net" Version="3.11.2" />
-    <PackageReference Include="JK.OKX.Net" Version="4.14.0" />
+    <PackageReference Include="Binance.Net" Version="13.6.0" />
+    <PackageReference Include="BitMart.Net" Version="4.5.0" />
+    <PackageReference Include="JK.OKX.Net" Version="5.5.0" />
   </ItemGroup>
 
 </Project>

README.md

@@ -127,6 +127,20 @@ Various:
   * PlatformInfo now required support environment names in the constructor
 
 ## Release notes
+* Version 13.2.0 - 13 Oct 2026
+    * Added Shared API ISubscribeFundingInfoSocket
+    * Added DelayAfterConnect to SocketApiOptions
+    * Added processor parameter for some methods in SocketApiClient to allow specific overriding behavior
+    * Updated WebSocket duplicate subscription handling
+    * Updated Shared APIs ISubscribeIncrementalOrderBook
+    * Fixed incorrect status keeping of WebSocket subscriptions which don't expect a response
+    * Fixed DelayAfterConnect not being respected on reconnection
+
+* Version 13.1.0 - 28 Sep 2026
+    * Added UnsubscribeAllAsync method to Shared APIs ISharedSubscription and ISharedApiClientBase
+    * Added WaitAllAsync extension method for waiting on an IAsyncEnumerable to finish
+    * Added SubscribeAllAsync extension methods for Shared API resolved capabilities
+
 * Version 13.0.0 - 23 Sep 2026
     * Shared APIs
       * Added Shared API V2 with fine-grained capability interfaces for individual REST requests, WebSocket requests and subscriptions

llms-full.txt

@@ -1,8 +1,8 @@
 # CryptoExchange.Net — full AI context
 
 Library: CryptoExchange.Net
-Library version: 13.0.0
-CryptoExchange.Net package version: 13.0.0
+Library version: 13.2.0
+CryptoExchange.Net package version: 13.2.0
 Language: C#/.NET
 Targets: netstandard2.0, netstandard2.1, net8.0, net9.0, net10.0
 

llms.txt

@@ -2,7 +2,7 @@
 
 > Base C#/.NET library used by 28+ cryptocurrency exchange clients. It standardizes REST, WebSocket, authentication, rate limiting, results, and exchange-agnostic Shared APIs.
 
-CryptoExchange.Net is not an exchange client by itself. Install exchange-specific packages such as Binance.Net, Bybit.Net, JK.OKX.Net, Kraken.Net, or Coinbase.Net, or install `CryptoClients.Net` for the bundle. Current release: 13.0.0. Targets netstandard2.0, netstandard2.1, net8.0, net9.0, and net10.0; Native AOT is supported.
+CryptoExchange.Net is not an exchange client by itself. Install exchange-specific packages such as Binance.Net, Bybit.Net, JK.OKX.Net, Kraken.Net, or Coinbase.Net, or install `CryptoClients.Net` for the bundle. Current release: 13.2.0. Targets netstandard2.0, netstandard2.1, net8.0, net9.0, and net10.0; Native AOT is supported.
 
 ## Shared API V2