Some small improvements and fixes

CryptoExchange.Net/Converters/SystemTextJson/EnumConverter.cs

@@ -92,9 +92,10 @@ namespace CryptoExchange.Net.Converters.SystemTextJson
                 {
                     JsonTokenType.String => reader.GetString(),
                     JsonTokenType.Number => reader.GetInt16().ToString(),
-                    JsonTokenType.True => "true",
-                    JsonTokenType.False => "false",
-                    _ => null
+                    JsonTokenType.True => reader.GetBoolean().ToString(),
+                    JsonTokenType.False => reader.GetBoolean().ToString(),
+                    JsonTokenType.Null => null,
+                    _ => throw new Exception("Invalid token type for enum deserialization: " + reader.TokenType)
                 };
 
                 if (string.IsNullOrEmpty(stringValue))

CryptoExchange.Net/ExtensionMethods.cs

@@ -10,6 +10,11 @@ using System.Text;
 using System.Web;
 using CryptoExchange.Net.Objects;
 using Microsoft.Extensions.Logging;
+using System.Globalization;
+using System.Collections;
+using System.Net.Http;
+using System.Data.Common;
+using Newtonsoft.Json.Linq;
 
 namespace CryptoExchange.Net
 {
@@ -59,7 +64,7 @@ namespace CryptoExchange.Net
         /// <param name="urlEncodeValues">Whether or not the values should be url encoded</param>
         /// <param name="serializationType">How to serialize array parameters</param>
         /// <returns></returns>
-        public static string CreateParamString(this Dictionary<string, object> parameters, bool urlEncodeValues, ArrayParametersSerialization serializationType)
+        public static string CreateParamString(this IDictionary<string, object> parameters, bool urlEncodeValues, ArrayParametersSerialization serializationType)
         {
             var uriString = string.Empty;
             var arraysParameters = parameters.Where(p => p.Value.GetType().IsArray).ToList();
@@ -67,17 +72,22 @@ namespace CryptoExchange.Net
             {
                 if (serializationType == ArrayParametersSerialization.Array)
                 {
-                    uriString += $"{string.Join("&", ((object[])(urlEncodeValues ? Uri.EscapeDataString(arrayEntry.Value.ToString()) : arrayEntry.Value)).Select(v => $"{arrayEntry.Key}[]={v}"))}&";
+                    uriString += $"{string.Join("&", ((object[])(urlEncodeValues ? Uri.EscapeDataString(arrayEntry.Value.ToString()) : arrayEntry.Value)).Select(v => $"{arrayEntry.Key}[]={string.Format(CultureInfo.InvariantCulture, "{0}", v)}"))}&";
+                }
+                else if (serializationType == ArrayParametersSerialization.MultipleValues)
+                {
+                    var array = (Array)arrayEntry.Value;
+                    uriString += string.Join("&", array.OfType<object>().Select(a => $"{arrayEntry.Key}={Uri.EscapeDataString(string.Format(CultureInfo.InvariantCulture, "{0}", a))}"));
+                    uriString += "&";
                 }
                 else
                 {
                     var array = (Array)arrayEntry.Value;
-                    uriString += string.Join("&", array.OfType<object>().Select(a => $"{arrayEntry.Key}={Uri.EscapeDataString(a.ToString())}"));
-                    uriString += "&";
+                    uriString += $"{arrayEntry.Key}=[{string.Join(",", array.OfType<object>().Select(a => string.Format(CultureInfo.InvariantCulture, "{0}", a)))}]&";
                 }
             }
 
-            uriString += $"{string.Join("&", parameters.Where(p => !p.Value.GetType().IsArray).Select(s => $"{s.Key}={(urlEncodeValues ? Uri.EscapeDataString(s.Value.ToString()) : s.Value)}"))}";
+            uriString += $"{string.Join("&", parameters.Where(p => !p.Value.GetType().IsArray).Select(s => $"{s.Key}={(urlEncodeValues ? Uri.EscapeDataString(string.Format(CultureInfo.InvariantCulture, "{0}", s.Value)) : string.Format(CultureInfo.InvariantCulture, "{0}", s.Value))}"))}";
             uriString = uriString.TrimEnd('&');
             return uriString;
         }
@@ -87,7 +97,7 @@ namespace CryptoExchange.Net
         /// </summary>
         /// <param name="parameters"></param>
         /// <returns></returns>
-        public static string ToFormData(this SortedDictionary<string, object> parameters)
+        public static string ToFormData(this IDictionary<string, object> parameters)
         {
             var formData = HttpUtility.ParseQueryString(string.Empty);
             foreach (var kvp in parameters)
@@ -96,17 +106,16 @@ namespace CryptoExchange.Net
                 {
                     var array = (Array)kvp.Value;
                     foreach (var value in array)
-                        formData.Add(kvp.Key, value.ToString());
+                        formData.Add(kvp.Key, string.Format(CultureInfo.InvariantCulture, "{0}", value));
                 }
                 else
                 {
-                    formData.Add(kvp.Key, kvp.Value.ToString());
+                    formData.Add(kvp.Key, string.Format(CultureInfo.InvariantCulture, "{0}", kvp.Value));
                 }
             }
             return formData.ToString();
         }
 
-
         /// <summary>
         /// Get the string the secure string is representing
         /// </summary>
@@ -350,9 +359,25 @@ namespace CryptoExchange.Net
             foreach (var parameter in parameters)
             {
                 if (parameter.Value.GetType().IsArray)
+                {
+                    if (arraySerialization == ArrayParametersSerialization.JsonArray)
+                    {
+                        httpValueCollection.Add(parameter.Key, $"[{string.Join(",", (object[])parameter.Value)}]");
+                    }
+                    else
                     {
                         foreach (var item in (object[])parameter.Value)
-                        httpValueCollection.Add(arraySerialization == ArrayParametersSerialization.Array ? parameter.Key + "[]" : parameter.Key, item.ToString());
+                        {
+                            if (arraySerialization == ArrayParametersSerialization.Array)
+                            {
+                                httpValueCollection.Add(parameter.Key + "[]", item.ToString());
+                            }
+                            else
+                            {
+                                httpValueCollection.Add(parameter.Key, item.ToString());
+                            }
+                        }
+                    }
                 }
                 else
                 {
@@ -381,9 +406,25 @@ namespace CryptoExchange.Net
             foreach (var parameter in parameters)
             {
                 if (parameter.Value.GetType().IsArray)
+                {
+                    if (arraySerialization == ArrayParametersSerialization.JsonArray)
+                    {
+                        httpValueCollection.Add(parameter.Key, $"[{string.Join(",", (object[])parameter.Value)}]");
+                    }
+                    else
                     {
                         foreach (var item in (object[])parameter.Value)
-                        httpValueCollection.Add(arraySerialization == ArrayParametersSerialization.Array ? parameter.Key + "[]" : parameter.Key, item.ToString());
+                        {
+                            if (arraySerialization == ArrayParametersSerialization.Array)
+                            {
+                                httpValueCollection.Add(parameter.Key + "[]", item.ToString());
+                            }
+                            else
+                            {
+                                httpValueCollection.Add(parameter.Key, item.ToString());
+                            }
+                        }
+                    }
                 }
                 else
                 {

CryptoExchange.Net/Interfaces/ISymbolOrderBook.cs

@@ -12,9 +12,14 @@ namespace CryptoExchange.Net.Interfaces
     public interface ISymbolOrderBook
     {
         /// <summary>
-        /// Identifier
+        /// The exchange the book is for
         /// </summary>
-        string Id { get; }
+        string Exchange { get; }
+
+        /// <summary>
+        /// The Api the book is for
+        /// </summary>
+        string Api { get; }
 
         /// <summary>
         /// The status of the order book. Order book is up to date when the status is `Synced`

CryptoExchange.Net/Objects/Enums.cs

@@ -99,15 +99,22 @@
     /// Define how array parameters should be send
     /// </summary>
     public enum ArrayParametersSerialization
+#pragma warning disable CS1570 // XML comment has badly formed XML
     {
         /// <summary>
-        /// Send multiple key=value for each entry
+        /// Send as key=value1&key=value2
         /// </summary>
         MultipleValues,
+
         /// <summary>
-        /// Create an []=value array
+        /// Send as key[]=value1&key[]=value2
         /// </summary>
-        Array
+        Array,
+        /// <summary>
+        /// Send as key=[value1, value2]
+        /// </summary>
+        JsonArray
+#pragma warning restore CS1570 // XML comment has badly formed XML
     }
 
     /// <summary>