CryptoExchange.Net.UnitTests/SystemTextJsonConverterTests.cs

@@ -1,15 +1,11 @@
 using CryptoExchange.Net.Attributes;
-using CryptoExchange.Net.Converters;
 using CryptoExchange.Net.Converters.SystemTextJson;
-using CryptoExchange.Net.Objects;
+using System.Text.Json;
-using CryptoExchange.Net.SharedApis;
-using CryptoExchange.Net.Testing;
-using Newtonsoft.Json.Linq;
 using NUnit.Framework;
 using System;
-using System.Diagnostics;
-using System.Text.Json;
 using System.Text.Json.Serialization;
+using CryptoExchange.Net.Converters;
+using CryptoExchange.Net.SharedApis;
 
 namespace CryptoExchange.Net.UnitTests
 {
@@ -189,31 +185,6 @@ namespace CryptoExchange.Net.UnitTests
             Assert.That(result == expected);
         }
 
-        [Test]
-        public void TestEnumConverterParseNullOnNonNullableOnlyLogsOnce()
-        {
-            LibraryHelpers.StaticLogger = new TraceLogger();
-            var listener = new EnumValueTraceListener();
-            Trace.Listeners.Add(listener);
-            EnumConverter<TestEnum>.Reset();
-            try
-            {
-                Assert.Throws<Exception>(() =>
-                {
-                    var result = JsonSerializer.Deserialize<NotNullableSTJEnumObject>("{\"Value\": null}", SerializerOptions.WithConverters(new SerializationContext()));
-                });
-
-                Assert.DoesNotThrow(() =>
-                {
-                    var result2 = JsonSerializer.Deserialize<NotNullableSTJEnumObject>("{\"Value\": null}", SerializerOptions.WithConverters(new SerializationContext()));
-                });
-            }
-            finally
-            {
-                Trace.Listeners.Remove(listener);
-            }
-        }
-
         [TestCase("1", true)]
         [TestCase("true", true)]
         [TestCase("yes", true)]

CryptoExchange.Net/Converters/SystemTextJson/EnumConverter.cs

@@ -120,14 +120,13 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
         /// <inheritdoc />
         public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
         {
-            var t = ReadNullable(ref reader, typeToConvert, options, out var isEmptyStringOrNull);
+            var t = ReadNullable(ref reader, typeToConvert, options, out var isEmptyString);
             if (t != null)
                 return t.Value;
             
-            if (isEmptyStringOrNull && !_unknownValuesWarned.Contains(null))
+            if (isEmptyString && !_unknownValuesWarned.Contains(null))
             {
                 // We received an empty string and have no mapping for it, and the property isn't nullable
-                _unknownValuesWarned.Add(null!);
                 LibraryHelpers.StaticLogger?.LogWarning($"Received null or empty enum value, but property type is not a nullable enum. EnumType: {typeof(T).FullName}. If you think {typeof(T).FullName} should be nullable please open an issue on the Github repo");
             }
 
@@ -150,9 +149,9 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
             return (T)_undefinedEnumValue;
         }
 
-        private T? ReadNullable(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options, out bool isEmptyStringOrNull)
+        private T? ReadNullable(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options, out bool isEmptyString)
         {
-            isEmptyStringOrNull = false;
+            isEmptyString = false;
             var enumType = typeof(T);
             if (_mappingToEnum == null)
                 CreateMapping();
@@ -168,16 +167,13 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
             };
 
             if (stringValue is null)
-            {
-                isEmptyStringOrNull = true;
                 return null;
-            }
 
             if (!GetValue(enumType, stringValue, out var result))
             {
                 if (string.IsNullOrWhiteSpace(stringValue))
                 {
-                    isEmptyStringOrNull = true;
+                    isEmptyString = true;
                 }
                 else
                 {
@@ -309,12 +305,6 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
 #endif
         }
 
-        internal static void Reset()
-        {
-            _undefinedEnumValue = null;
-            _unknownValuesWarned = new ConcurrentBag<string>();
-        }
-
         /// <summary>
         /// Get the string value for an enum value using the MapAttribute mapping. When multiple values are mapped for a enum entry the first value will be returned
         /// </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>11.0.3</PackageVersion>
+    <PackageVersion>11.0.2</PackageVersion>
-    <AssemblyVersion>11.0.3</AssemblyVersion>
+    <AssemblyVersion>11.0.2</AssemblyVersion>
-    <FileVersion>11.0.3</FileVersion>
+    <FileVersion>11.0.2</FileVersion>
     <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
     <PackageTags>OKX;OKX.Net;Mexc;Mexc.Net;Kucoin;Kucoin.Net;Kraken;Kraken.Net;Huobi;Huobi.Net;CoinEx;CoinEx.Net;Bybit;Bybit.Net;Bitget;Bitget.Net;Bitfinex;Bitfinex.Net;Binance;Binance.Net;CryptoCurrency;CryptoCurrency Exchange;CryptoExchange.Net</PackageTags>
     <RepositoryType>git</RepositoryType>

CryptoExchange.Net/Objects/CallResult.cs

@@ -154,9 +154,6 @@ namespace CryptoExchange.Net.Objects
         /// <returns></returns>
         public CallResult AsDataless()
         {
-            if (Error != null )
-                return new CallResult(Error);
-
             return SuccessResult;
         }
 

CryptoExchange.Net/RateLimiting/Guards/RateLimitGuard.cs

@@ -3,7 +3,6 @@ using CryptoExchange.Net.RateLimiting.Interfaces;
 using CryptoExchange.Net.RateLimiting.Trackers;
 using System;
 using System.Collections.Generic;
-using System.Threading;
 
 namespace CryptoExchange.Net.RateLimiting.Guards
 {
@@ -37,7 +36,6 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         private readonly double? _decayRate;
         private readonly int? _connectionWeight;
         private readonly Func<RequestDefinition, string, string?, string> _keySelector;
-        private readonly SemaphoreSlim? _sharedGuardSemaphore;
 
         /// <inheritdoc />
         public string Name => "RateLimitGuard";
@@ -54,11 +52,6 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         /// </summary>
         public TimeSpan TimeSpan { get; }
 
-        /// <summary>
-        /// Whether this guard is shared between multiple gates
-        /// </summary>
-        public bool SharedGuard { get; }
-
         /// <summary>
         /// ctor
         /// </summary>
@@ -69,9 +62,8 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         /// <param name="windowType">Type of rate limit window</param>
         /// <param name="decayPerTimeSpan">The decay per timespan if windowType is DecayWindowTracker</param>
         /// <param name="connectionWeight">The weight of a new connection</param>
-        /// <param name="shared">Whether this guard is shared between multiple gates</param>
+        public RateLimitGuard(Func<RequestDefinition, string, string?, string> keySelector, IGuardFilter filter, int limit, TimeSpan timeSpan, RateLimitWindowType windowType, double? decayPerTimeSpan = null, int? connectionWeight = null)
-        public RateLimitGuard(Func<RequestDefinition, string, string?, string> keySelector, IGuardFilter filter, int limit, TimeSpan timeSpan, RateLimitWindowType windowType, double? decayPerTimeSpan = null, int? connectionWeight = null, bool shared = false)
+            : this(keySelector, new[] { filter }, limit, timeSpan, windowType, decayPerTimeSpan, connectionWeight)
-            : this(keySelector, new[] { filter }, limit, timeSpan, windowType, decayPerTimeSpan, connectionWeight, shared)
         {
         }
 
@@ -85,27 +77,22 @@ namespace CryptoExchange.Net.RateLimiting.Guards
         /// <param name="windowType">Type of rate limit window</param>
         /// <param name="decayPerTimeSpan">The decay per timespan if windowType is DecayWindowTracker</param>
         /// <param name="connectionWeight">The weight of a new connection</param>
-        /// <param name="shared">Whether this guard is shared between multiple gates</param>
+        public RateLimitGuard(Func<RequestDefinition, string, string?, string> keySelector, IEnumerable<IGuardFilter> filters, int limit, TimeSpan timeSpan, RateLimitWindowType windowType, double? decayPerTimeSpan = null, int? connectionWeight = null)
-        public RateLimitGuard(Func<RequestDefinition, string, string?, string> keySelector, IEnumerable<IGuardFilter> filters, int limit, TimeSpan timeSpan, RateLimitWindowType windowType, double? decayPerTimeSpan = null, int? connectionWeight = null, bool shared = false)
         {
             _filters = filters;
             _trackers = new Dictionary<string, IWindowTracker>();
             _windowType = windowType;
             Limit = limit;
             TimeSpan = timeSpan;
-            SharedGuard = shared;
             _keySelector = keySelector;
             _decayRate = decayPerTimeSpan;
             _connectionWeight = connectionWeight;
-
-            if (SharedGuard)
-                _sharedGuardSemaphore = new SemaphoreSlim(1, 1);
         }
 
         /// <inheritdoc />
         public LimitCheck Check(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix)
         {
-            foreach (var filter in _filters)
+            foreach(var filter in _filters)
             {
                 if (!filter.Passes(type, definition, host, apiKey))
                     return LimitCheck.NotApplicable;
@@ -114,11 +101,6 @@ namespace CryptoExchange.Net.RateLimiting.Guards
             if (type == RateLimitItemType.Connection)
                 requestWeight = _connectionWeight ?? requestWeight;
 
-            if (SharedGuard)
-                _sharedGuardSemaphore!.Wait();
-
-            try
-            {
             var key = _keySelector(definition, host, apiKey) + keySuffix;
             if (!_trackers.TryGetValue(key, out var tracker))
             {
@@ -126,19 +108,12 @@ namespace CryptoExchange.Net.RateLimiting.Guards
                 _trackers.Add(key, tracker);
             }
 
-
             var delay = tracker.GetWaitTime(requestWeight);
             if (delay == default)
                 return LimitCheck.NotNeeded(Limit, TimeSpan, tracker.Current);
 
             return LimitCheck.Needed(delay, Limit, TimeSpan, tracker.Current);
         }
-            finally
-            {
-                if (SharedGuard)
-                    _sharedGuardSemaphore!.Release();
-            }
-        }
 
         /// <inheritdoc />
         public RateLimitState ApplyWeight(RateLimitItemType type, RequestDefinition definition, string host, string? apiKey, int requestWeight, string? keySuffix)
@@ -152,23 +127,9 @@ namespace CryptoExchange.Net.RateLimiting.Guards
             if (type == RateLimitItemType.Connection)
                 requestWeight = _connectionWeight ?? requestWeight;
 
-
             var key = _keySelector(definition, host, apiKey) + keySuffix;
             var tracker = _trackers[key];
-
-            if (SharedGuard)
-                _sharedGuardSemaphore!.Wait();
-
-            try 
-            {
             tracker.ApplyWeight(requestWeight);
-            }
-            finally
-            {
-                if (SharedGuard)
-                    _sharedGuardSemaphore!.Release();
-            }
-
             return RateLimitState.Applied(Limit, TimeSpan, tracker.Current);
         }
 

CryptoExchange.Net/Testing/EnumValueTraceListener.cs

@@ -13,7 +13,7 @@ namespace CryptoExchange.Net.Testing
             if (message.Contains("Cannot map"))
                 throw new Exception("Enum value error: " + message);
 
-            if (message.Contains("Received null or empty enum value"))
+            if (message.Contains("Received null enum value"))
                 throw new Exception("Enum null error: " + message);
         }
 
@@ -25,7 +25,7 @@ namespace CryptoExchange.Net.Testing
             if (message.Contains("Cannot map"))
                 throw new Exception("Enum value error: " + message);
 
-            if (message.Contains("Received null or empty enum value"))
+            if (message.Contains("Received null enum value"))
                 throw new Exception("Enum null error: " + message);
         }
     }

CryptoExchange.Net/Testing/SharedRestRequestValidator.cs

@@ -1,126 +0,0 @@
-using CryptoExchange.Net.Clients;
-using CryptoExchange.Net.Objects;
-using CryptoExchange.Net.SharedApis;
-using CryptoExchange.Net.Testing.Comparers;
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.IO;
-using System.Net.Http;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace CryptoExchange.Net.Testing
-{
-    /// <summary>
-    /// Validator for REST requests, comparing path, http method, authentication and response parsing
-    /// </summary>
-    /// <typeparam name="TClient">The Rest client</typeparam>
-    public class SharedRestRequestValidator<TClient> where TClient : BaseRestClient
-    {
-        private readonly TClient _client;
-        private readonly Func<WebCallResult, bool> _isAuthenticated;
-        private readonly string _folder;
-        private readonly string _baseAddress;
-        private readonly string? _nestedPropertyForCompare;
-
-        /// <summary>
-        /// ctor
-        /// </summary>
-        /// <param name="client">Client to test</param>
-        /// <param name="folder">Folder for json test values</param>
-        /// <param name="baseAddress">The base address that is expected</param>
-        /// <param name="isAuthenticated">Func for checking if the request is authenticated</param>
-        /// <param name="nestedPropertyForCompare">Property to use for compare</param>
-        public SharedRestRequestValidator(TClient client, string folder, string baseAddress, Func<WebCallResult, bool> isAuthenticated, string? nestedPropertyForCompare = null)
-        {
-            _client = client;
-            _folder = folder;
-            _baseAddress = baseAddress;
-            _nestedPropertyForCompare = nestedPropertyForCompare;
-            _isAuthenticated = isAuthenticated;
-        }
-
-        /// <summary>
-        /// Validate a request
-        /// </summary>
-        /// <typeparam name="TResponse">Expected response type</typeparam>
-        /// <param name="methodInvoke">Method invocation</param>
-        /// <param name="name">Method name for looking up json test values</param>
-        /// <param name="endpointOptions">Request options</param>
-        /// <returns></returns>
-        /// <exception cref="Exception"></exception>
-        public Task ValidateAsync<TResponse>(
-           Func<TClient, Task<ExchangeWebResult<TResponse>>> methodInvoke,
-           string name,
-           EndpointOptions endpointOptions,
-            params Func<TResponse, bool>[] validation)
-            => ValidateAsync<TResponse, TResponse>(methodInvoke, name, endpointOptions, validation);
-
-        /// <summary>
-        /// Validate a request
-        /// </summary>
-        /// <typeparam name="TResponse">Expected response type</typeparam>
-        /// <typeparam name="TActualResponse">The concrete response type</typeparam>
-        /// <param name="methodInvoke">Method invocation</param>
-        /// <param name="name">Method name for looking up json test values</param>
-        /// <param name="endpointOptions">Request options</param>
-        /// <returns></returns>
-        /// <exception cref="Exception"></exception>
-        public async Task ValidateAsync<TResponse, TActualResponse>(
-            Func<TClient, Task<ExchangeWebResult<TResponse>>> methodInvoke,
-            string name,
-            EndpointOptions endpointOptions,
-            params Func<TResponse, bool>[] validation) where TActualResponse : TResponse
-        {
-            var listener = new EnumValueTraceListener();
-            Trace.Listeners.Add(listener);
-            
-            var path = Directory.GetParent(Environment.CurrentDirectory)!.Parent!.Parent!.FullName;
-            FileStream file;
-            try
-            {
-                file = File.OpenRead(Path.Combine(path, _folder, $"{name}.txt"));
-            }
-            catch (FileNotFoundException)
-            {
-                throw new Exception($"Response file not found for {name}: {path}");
-            }
-
-            var buffer = new byte[file.Length];
-            await file.ReadAsync(buffer, 0, buffer.Length).ConfigureAwait(false);
-            file.Close();
-
-            var data = Encoding.UTF8.GetString(buffer);
-            using var reader = new StringReader(data);
-            var expectedMethod = reader.ReadLine();
-            var expectedPath = reader.ReadLine();
-            var expectedAuth = bool.Parse(reader.ReadLine()!);
-            var response = reader.ReadToEnd();
-
-            TestHelpers.ConfigureRestClient(_client, response, System.Net.HttpStatusCode.OK);
-            var result = await methodInvoke(_client).ConfigureAwait(false);
-
-            // Check request/response properties
-            if (result.Error != null)
-                throw new Exception(name + " returned error " + result.Error);
-            if (endpointOptions.NeedsAuthentication != expectedAuth)
-                throw new Exception(name + $" authentication not matched. Expected: {expectedAuth}, Actual: {_isAuthenticated(result.AsDataless())}");
-            if (result.RequestMethod != new HttpMethod(expectedMethod!))
-                throw new Exception(name + $" http method not matched. Expected {expectedMethod}, Actual: {result.RequestMethod}");
-            if (expectedPath != result.RequestUrl!.Replace(_baseAddress, "").Split(new char[] { '?' })[0])
-                throw new Exception(name + $" path not matched. Expected: {expectedPath}, Actual: {result.RequestUrl!.Replace(_baseAddress, "").Split(new char[] { '?' })[0]}");
-
-            var index = 0;
-            foreach(var validate in validation)
-            {
-                if (!validate(result.Data!))
-                    throw new Exception(name + $" response validation #{index} failed");
-
-                index++;
-            }
-
-            Trace.Listeners.Remove(listener);
-        }
-    }
-}

README.md

@@ -68,9 +68,6 @@ Make a one time donation in a crypto currency of your choice. If you prefer to d
 Alternatively, sponsor me on Github using [Github Sponsors](https://github.com/sponsors/JKorf). 
 
 ## Release notes
-* Version 11.0.3 - 30 Mar 2026
-    * Updated Enum converter to only warn once per type for null/empty value for non-nullable enum property
-
 * Version 11.0.2 - 26 Mar 2026
     * Updated SetOptions logic to allow calling on client without credentials