Added SerializerOptions helper class for setting default serializer, Added ParameterCollection for easier parameter definition, Added extra encryption helper methods on AuthenticationProvider

CryptoExchange.Net/Authentication/AuthenticationProvider.cs

@@ -74,6 +74,17 @@ namespace CryptoExchange.Net.Authentication
             return encryptor.ComputeHash(Encoding.UTF8.GetBytes(data));
         }
 
+        /// <summary>
+        /// SHA256 sign the data and return the bytes
+        /// </summary>
+        /// <param name="data"></param>
+        /// <returns></returns>
+        protected static byte[] SignSHA256Bytes(byte[] data)
+        {
+            using var encryptor = SHA256.Create();
+            return encryptor.ComputeHash(data);
+        }
+
         /// <summary>
         /// SHA256 sign the data and return the hash
         /// </summary>
@@ -87,6 +98,19 @@ namespace CryptoExchange.Net.Authentication
             return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
         }
 
+        /// <summary>
+        /// SHA256 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <param name="outputType">String type</param>
+        /// <returns></returns>
+        protected static string SignSHA256(byte[] data, SignOutputType? outputType = null)
+        {
+            using var encryptor = SHA256.Create();
+            var resultBytes = encryptor.ComputeHash(data);
+            return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
+        }
+
         /// <summary>
         /// SHA384 sign the data and return the hash
         /// </summary>
@@ -100,6 +124,41 @@ namespace CryptoExchange.Net.Authentication
             return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
         }
 
+        /// <summary>
+        /// SHA384 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <param name="outputType">String type</param>
+        /// <returns></returns>
+        protected static string SignSHA384(byte[] data, SignOutputType? outputType = null)
+        {
+            using var encryptor = SHA384.Create();
+            var resultBytes = encryptor.ComputeHash(data);
+            return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
+        }
+
+        /// <summary>
+        /// SHA384 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <returns></returns>
+        protected static byte[] SignSHA384Bytes(string data)
+        {
+            using var encryptor = SHA384.Create();
+            return encryptor.ComputeHash(Encoding.UTF8.GetBytes(data));
+        }
+
+        /// <summary>
+        /// SHA384 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <returns></returns>
+        protected static byte[] SignSHA384Bytes(byte[] data)
+        {
+            using var encryptor = SHA384.Create();
+            return encryptor.ComputeHash(data);
+        }
+
         /// <summary>
         /// SHA512 sign the data and return the hash
         /// </summary>
@@ -113,6 +172,41 @@ namespace CryptoExchange.Net.Authentication
             return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
         }
 
+        /// <summary>
+        /// SHA512 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <param name="outputType">String type</param>
+        /// <returns></returns>
+        protected static string SignSHA512(byte[] data, SignOutputType? outputType = null)
+        {
+            using var encryptor = SHA512.Create();
+            var resultBytes = encryptor.ComputeHash(data);
+            return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
+        }
+
+        /// <summary>
+        /// SHA512 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <returns></returns>
+        protected static byte[] SignSHA512Bytes(string data)
+        {
+            using var encryptor = SHA512.Create();
+            return encryptor.ComputeHash(Encoding.UTF8.GetBytes(data));
+        }
+
+        /// <summary>
+        /// SHA512 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <returns></returns>
+        protected static byte[] SignSHA512Bytes(byte[] data)
+        {
+            using var encryptor = SHA512.Create();
+            return encryptor.ComputeHash(data);
+        }
+
         /// <summary>
         /// MD5 sign the data and return the hash
         /// </summary>
@@ -127,28 +221,70 @@ namespace CryptoExchange.Net.Authentication
         }
 
         /// <summary>
-        /// HMACSHA256 sign the data and return the hash
+        /// MD5 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <param name="outputType">String type</param>
+        /// <returns></returns>
+        protected static string SignMD5(byte[] data, SignOutputType? outputType = null)
+        {
+            using var encryptor = MD5.Create();
+            var resultBytes = encryptor.ComputeHash(data);
+            return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
+        }
+
+        /// <summary>
+        /// MD5 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <returns></returns>
+        protected static byte[] SignMD5Bytes(string data)
+        {
+            using var encryptor = MD5.Create();
+            return encryptor.ComputeHash(Encoding.UTF8.GetBytes(data));
+        }
+
+        /// <summary>
+        /// HMACSHA512 sign the data and return the hash
         /// </summary>
         /// <param name="data">Data to sign</param>
         /// <param name="outputType">String type</param>
         /// <returns></returns>
         protected string SignHMACSHA256(string data, SignOutputType? outputType = null)
+            => SignHMACSHA256(Encoding.UTF8.GetBytes(data), outputType);
+
+        /// <summary>
+        /// HMACSHA256 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <param name="outputType">String type</param>
+        /// <returns></returns>
+        protected string SignHMACSHA256(byte[] data, SignOutputType? outputType = null)
         {
             using var encryptor = new HMACSHA256(_sBytes);
-            var resultBytes = encryptor.ComputeHash(Encoding.UTF8.GetBytes(data));
+            var resultBytes = encryptor.ComputeHash(data);
             return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
         }
 
+        /// <summary>
+        /// HMACSHA512 sign the data and return the hash
+        /// </summary>
+        /// <param name="data">Data to sign</param>
+        /// <param name="outputType">String type</param>
+        /// <returns></returns>
+        protected string SignHMACSHA384(string data, SignOutputType? outputType = null)
+            => SignHMACSHA384(Encoding.UTF8.GetBytes(data), outputType);
+
         /// <summary>
         /// HMACSHA384 sign the data and return the hash
         /// </summary>
         /// <param name="data">Data to sign</param>
         /// <param name="outputType">String type</param>
         /// <returns></returns>
-        protected string SignHMACSHA384(string data, SignOutputType? outputType = null)
+        protected string SignHMACSHA384(byte[] data, SignOutputType? outputType = null)
         {
             using var encryptor = new HMACSHA384(_sBytes);
-            var resultBytes = encryptor.ComputeHash(Encoding.UTF8.GetBytes(data));
+            var resultBytes = encryptor.ComputeHash(data);
             return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
         }
 
@@ -182,7 +318,46 @@ namespace CryptoExchange.Net.Authentication
         /// <returns></returns>
         protected string SignRSASHA256(byte[] data, SignOutputType? outputType = null)
         {
-            using var rsa = RSA.Create();
+            using var rsa = CreateRSA();
+            using var sha256 = SHA256.Create();
+            var hash = sha256.ComputeHash(data);
+            var resultBytes = rsa.SignHash(hash, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1);
+            return outputType == SignOutputType.Base64? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
+        }
+
+        /// <summary>
+        /// SHA384 sign the data
+        /// </summary>
+        /// <param name="data"></param>
+        /// <param name="outputType"></param>
+        /// <returns></returns>
+        protected string SignRSASHA384(byte[] data, SignOutputType? outputType = null)
+        {
+            using var rsa = CreateRSA();
+            using var sha384 = SHA384.Create();
+            var hash = sha384.ComputeHash(data);
+            var resultBytes = rsa.SignHash(hash, HashAlgorithmName.SHA384, RSASignaturePadding.Pkcs1);
+            return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
+        }
+
+        /// <summary>
+        /// SHA512 sign the data
+        /// </summary>
+        /// <param name="data"></param>
+        /// <param name="outputType"></param>
+        /// <returns></returns>
+        protected string SignRSASHA512(byte[] data, SignOutputType? outputType = null)
+        {
+            using var rsa = CreateRSA();
+            using var sha512 = SHA512.Create();
+            var hash = sha512.ComputeHash(data);
+            var resultBytes = rsa.SignHash(hash, HashAlgorithmName.SHA512, RSASignaturePadding.Pkcs1);
+            return outputType == SignOutputType.Base64 ? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
+        }
+
+        private RSA CreateRSA()
+        {
+            var rsa = RSA.Create();
             if (_credentials.CredentialType == ApiCredentialsType.RsaPem)
             {
 #if NETSTANDARD2_1_OR_GREATER
@@ -209,30 +384,7 @@ namespace CryptoExchange.Net.Authentication
                 throw new Exception("Invalid credentials type");
             }
 
-            using var sha256 = SHA256.Create();
-            var hash = sha256.ComputeHash(data);
-            var resultBytes = rsa.SignHash(hash, HashAlgorithmName.SHA256, RSASignaturePadding.Pkcs1);
-            return outputType == SignOutputType.Base64? BytesToBase64String(resultBytes) : BytesToHexString(resultBytes);
-        }
-
-        /// <summary>
-        /// Sign a string
-        /// </summary>
-        /// <param name="toSign"></param>
-        /// <returns></returns>
-        public virtual string Sign(string toSign)
-        {
-            return toSign;
-        }
-
-        /// <summary>
-        /// Sign a byte array
-        /// </summary>
-        /// <param name="toSign"></param>
-        /// <returns></returns>
-        public virtual byte[] Sign(byte[] toSign)
-        {
-            return toSign;
+            return rsa;
         }
 
         /// <summary>

CryptoExchange.Net/Clients/BaseApiClient.cs

@@ -7,6 +7,7 @@ using System.Net.Http;
 using System.Text;
 using System.Threading.Tasks;
 using CryptoExchange.Net.Authentication;
+using CryptoExchange.Net.Converters;
 using CryptoExchange.Net.Interfaces;
 using CryptoExchange.Net.Objects;
 using CryptoExchange.Net.Objects.Options;
@@ -78,13 +79,9 @@ namespace CryptoExchange.Net
         public bool OutputOriginalData { get; }
 
         /// <summary>
-        /// A default serializer
+        /// The default serializer
         /// </summary>
-        private static readonly JsonSerializer _defaultSerializer = JsonSerializer.Create(new JsonSerializerSettings
-        {
-            DateTimeZoneHandling = DateTimeZoneHandling.Utc,
-            Culture = CultureInfo.InvariantCulture
-        });
+        protected virtual JsonSerializer DefaultSerializer { get; set; } = JsonSerializer.Create(SerializerOptions.Default);
 
         /// <summary>
         /// Api options
@@ -204,7 +201,7 @@ namespace CryptoExchange.Net
         /// <returns></returns>
         protected CallResult<T> Deserialize<T>(JToken obj, JsonSerializer? serializer = null, int? requestId = null)
         {
-            serializer ??= _defaultSerializer;
+            serializer ??= DefaultSerializer;
 
             try
             {
@@ -242,7 +239,7 @@ namespace CryptoExchange.Net
         /// <returns></returns>
         protected async Task<CallResult<T>> DeserializeAsync<T>(Stream stream, JsonSerializer? serializer = null, int? requestId = null, long? elapsedMilliseconds = null)
         {
-            serializer ??= _defaultSerializer;
+            serializer ??= DefaultSerializer;
             string? data = null;
 
             try

CryptoExchange.Net/Clients/RestApiClient.cs

@@ -273,7 +273,7 @@ namespace CryptoExchange.Net
                 if (response.IsSuccessStatusCode)
                 {
                     // If we have to manually parse error responses (can't rely on HttpStatusCode) we'll need to read the full
-                    // response before being able to deserialize it into the resulting type since we don't know if it an error response or data
+                    // response before being able to deserialize it into the resulting type since we don't know if its an error response or data
                     if (manualParseError)
                     {
                         using var reader = new StreamReader(responseStream);

CryptoExchange.Net/Converters/BoolConverter.cs

@@ -47,6 +47,7 @@ namespace CryptoExchange.Net.Converters
                 case "n":
                 case "0":
                 case "off":
+                case "-1":
                     return false;
             }
 

CryptoExchange.Net/Converters/EnumConverter.cs

@@ -33,7 +33,7 @@ namespace CryptoExchange.Net.Converters
         /// <inheritdoc />
         public override bool CanConvert(Type objectType)
         {
-            return objectType.IsEnum;
+            return objectType.IsEnum || Nullable.GetUnderlyingType(objectType)?.IsEnum == true;
         }
 
         /// <inheritdoc />

CryptoExchange.Net/Converters/SerializerOptions.cs

@@ -0,0 +1,35 @@
+using Newtonsoft.Json;
+using System.Globalization;
+
+namespace CryptoExchange.Net.Converters
+{
+    /// <summary>
+    /// Serializer options
+    /// </summary>
+    public static class SerializerOptions
+    {
+        /// <summary>
+        /// Json serializer settings which includes the EnumConverter, DateTimeConverter and BoolConverter
+        /// </summary>
+        public static JsonSerializerSettings WithConverters => new JsonSerializerSettings
+        {
+            DateTimeZoneHandling = DateTimeZoneHandling.Utc,
+            Culture = CultureInfo.InvariantCulture,
+            Converters =
+            {
+                new EnumConverter(),
+                new DateTimeConverter(),
+                new BoolConverter()
+            }
+        };
+
+        /// <summary>
+        /// Default json serializer settings
+        /// </summary>
+        public static JsonSerializerSettings Default => new JsonSerializerSettings
+        {
+            DateTimeZoneHandling = DateTimeZoneHandling.Utc,
+            Culture = CultureInfo.InvariantCulture
+        };
+    }
+}

CryptoExchange.Net/CryptoExchange.Net.csproj

@@ -1,4 +1,4 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <TargetFrameworks>netstandard2.0;netstandard2.1</TargetFrameworks>
   </PropertyGroup>

CryptoExchange.Net/Objects/ParameterCollection.cs

@@ -0,0 +1,172 @@
+using CryptoExchange.Net.Attributes;
+using CryptoExchange.Net.Converters;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+
+namespace CryptoExchange.Net.Objects
+{
+    /// <summary>
+    /// Parameters collection
+    /// </summary>
+    public class ParameterCollection : Dictionary<string, object>
+    {
+        /// <summary>
+        /// Add an optional parameter. Not added if value is null
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddOptional(string key, object? value)
+        {
+            if (value != null)
+                Add(key, value);
+        }
+
+        /// <summary>
+        /// Add a decimal value as string
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddString(string key, decimal value)
+        {
+            Add(key, value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        /// <summary>
+        /// Add a decimal value as string. Not added if value is null
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddOptionalString(string key, decimal? value)
+        {
+            if (value != null)
+                Add(key, value.Value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        /// <summary>
+        /// Add a int value as string
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddString(string key, int value)
+        {
+            Add(key, value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        /// <summary>
+        /// Add a int value as string. Not added if value is null
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddOptionalString(string key, int? value)
+        {
+            if (value != null)
+                Add(key, value.Value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        /// <summary>
+        /// Add a long value as string
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddString(string key, long value)
+        {
+            Add(key, value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        /// <summary>
+        /// Add a long value as string. Not added if value is null
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddOptionalString(string key, long? value)
+        {
+            if (value != null)
+                Add(key, value.Value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        /// <summary>
+        /// Add a datetime value as milliseconds timestamp
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddMilliseconds(string key, DateTime value)
+        {
+            Add(key, DateTimeConverter.ConvertToMilliseconds(value));
+        }
+
+        /// <summary>
+        /// Add a datetime value as milliseconds timestamp. Not added if value is null
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddOptionalMilliseconds(string key, DateTime? value)
+        {
+            if (value != null)
+                Add(key, DateTimeConverter.ConvertToMilliseconds(value));
+        }
+
+        /// <summary>
+        /// Add a datetime value as milliseconds timestamp
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddMillisecondsString(string key, DateTime value)
+        {
+            Add(key, DateTimeConverter.ConvertToMilliseconds(value).Value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        /// <summary>
+        /// Add a datetime value as milliseconds timestamp. Not added if value is null
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddOptionalMillisecondsString(string key, DateTime? value)
+        {
+            if (value != null)
+                Add(key, DateTimeConverter.ConvertToMilliseconds(value).Value.ToString(CultureInfo.InvariantCulture));
+        }
+
+        /// <summary>
+        /// Add a datetime value as seconds timestamp
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddSeconds(string key, DateTime value)
+        {
+            Add(key, DateTimeConverter.ConvertToSeconds(value));
+        }
+
+        /// <summary>
+        /// Add a datetime value as seconds timestamp. Not added if value is null
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddOptionalSeconds(string key, DateTime? value)
+        {
+            if (value != null)
+                Add(key, DateTimeConverter.ConvertToSeconds(value));
+        }
+
+        /// <summary>
+        /// Add an enum value as the string value as mapped using the <see cref="MapAttribute" />
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddEnum<T>(string key, T value)
+        {
+            Add(key, EnumConverter.GetString(value)!);
+        }
+
+        /// <summary>
+        /// Add an enum value as the string value as mapped using the <see cref="MapAttribute" />. Not added if value is null
+        /// </summary>
+        /// <param name="key"></param>
+        /// <param name="value"></param>
+        public void AddOptionalEnum<T>(string key, T? value)
+        {
+            if (value != null)
+                Add(key, EnumConverter.GetString(value));
+        }
+    }
+}