Adding Margin trading support,

BinanceExchange.API/Client/BinanceClient.cs

@@ -273,6 +273,61 @@ public async Task<BaseCreateOrderResponse> CreateOrder(CreateOrderRequest reques
 
         }
 
+        /// <summary>
+        /// Creates an Isolated account order based on the provided request
+        /// </summary>
+        /// <param name="request">The <see cref="CreateIsolatedOrderRequest"/> that is used to define the order</param>
+        /// <returns>This method can return <see cref="AcknowledgeCreateOrderResponse"/>, <see cref="FullCreateOrderResponse"/> 
+        /// or <see cref="ResultCreateOrderResponse"/> based on the provided NewOrderResponseType enum in the request.
+        /// </returns>
+        public async Task<BaseCreateOrderResponse> CreateIsolatedOrder(CreateIsolatedOrderRequest request)
+        {
+            Guard.AgainstNull(request.Symbol);
+            Guard.AgainstNull(request.Side);
+            Guard.AgainstNull(request.Type);
+            Guard.AgainstNull(request.Quantity);
+
+            switch (request.NewOrderResponseType)
+            {
+                case NewOrderResponseType.Acknowledge:
+                    return await _apiProcessor.ProcessPostRequest<AcknowledgeCreateOrderResponse>(Endpoints.Account.NewOrder(request));
+                case NewOrderResponseType.Full:
+                    return await _apiProcessor.ProcessPostRequest<FullCreateOrderResponse>(Endpoints.Account.NewOrder(request));
+                default:
+                    return await _apiProcessor.ProcessPostRequest<ResultCreateOrderResponse>(Endpoints.Account.NewOrder(request));
+            }
+
+        }
+
+        /// <summary>
+        /// Query account max possible borrow (coin symbol specific)
+        /// </summary>
+        /// <param name="request">The <see cref="CreateIsolatedOrderRequest"/> that is used to define the order</param>
+        /// <returns>This method can return <see cref="AcknowledgeCreateOrderResponse"/>, <see cref="FullCreateOrderResponse"/> 
+        /// or <see cref="ResultCreateOrderResponse"/> based on the provided NewOrderResponseType enum in the request.
+        /// </returns>
+        public async Task<MaxBorrowResponse> QueryMaxBorrow(MaxBorrowRequest request)
+        {
+            Guard.AgainstNull(request.Asset);
+            Guard.AgainstNull(request.IsolatedSymbol);
+
+            return await _apiProcessor.ProcessGetRequest<MaxBorrowResponse>(Endpoints.Account.NewOrder(request));
+        }
+
+        /// <summary>
+        /// Creates an order based on the provided request
+        /// </summary>
+        /// <param name="request">The <see cref="CreateIsolatedOrderRequest"/> that is used to define the order</param>
+        /// <returns>This method can return <see cref="AcknowledgeCreateOrderResponse"/>, <see cref="FullCreateOrderResponse"/> 
+        /// or <see cref="ResultCreateOrderResponse"/> based on the provided NewOrderResponseType enum in the request.
+        /// </returns>
+        public async Task<IsolatedMarginAccountInfoResponse> QueryIsolatedMarginAccountInfo(IsolatedMarginAccountInfoRequest request)
+        {
+            Guard.AgainstNull(request.Symbols);
+
+            return await _apiProcessor.ProcessGetRequest<IsolatedMarginAccountInfoResponse>(Endpoints.Account.NewOrder(request));
+        }
+
         /// <summary>
         /// Creates a test order based on the provided request
         /// </summary>

BinanceExchange.API/Endpoints.cs

@@ -29,13 +29,17 @@ public static class Endpoints
         /// Defaults to API binance domain (https)
         /// </summary>
         internal static string APIBaseUrl = "https://api.binance.com/api";
+        internal static string BAPIBaseUrl = "https://api.binance.com/bapi";
+        internal static string SAPIBaseUrl = "https://api.binance.com/sapi";
 
         /// <summary>
         /// Defaults to WAPI binance domain (https)
         /// </summary>
         internal static string WAPIBaseUrl = "https://api.binance.com/wapi";
 
         private static string APIPrefix { get; } = $"{APIBaseUrl}";
+        private static string BAPIPrefix { get; } = $"{BAPIBaseUrl}";
+        private static string SAPIPrefix { get; } = $"{SAPIBaseUrl}/v1";
         private static string WAPIPrefix { get; } = $"{WAPIBaseUrl}";
 
         public static class UserStream
@@ -241,6 +245,24 @@ public static BinanceEndpointData SystemStatus()
             {
                 return new BinanceEndpointData(new Uri($"{WAPIPrefix}/{ApiVersion}/systemStatus.html"), EndpointSecurityType.None);
             }
+
+            public static BinanceEndpointData NewOrder(CreateIsolatedOrderRequest request)
+            {
+                var queryString = GenerateQueryStringFromData(request);
+                return new BinanceEndpointData(new Uri($"{SAPIPrefix}/margin/order?{queryString}"), EndpointSecurityType.Signed);
+            }
+
+            public static BinanceEndpointData NewOrder(MaxBorrowRequest request)
+            {
+                var queryString = GenerateQueryStringFromData(request);
+                return new BinanceEndpointData(new Uri($"{SAPIPrefix}/margin/maxBorrowable?{queryString}"), EndpointSecurityType.Signed);
+            }
+
+            public static BinanceEndpointData NewOrder(IsolatedMarginAccountInfoRequest request)
+            {
+                var queryString = GenerateQueryStringFromData(request);
+                return new BinanceEndpointData(new Uri($"{SAPIPrefix}/margin/isolated/account?{queryString}"), EndpointSecurityType.Signed);
+            }
         }
 
         private static string GenerateQueryStringFromData(IRequest request)

BinanceExchange.API/Enums/SideEffectType.cs

@@ -0,0 +1,14 @@
+using System.Runtime.Serialization;
+
+namespace BinanceExchange.API.Enums
+{
+    public enum SideEffectType
+    {
+        [EnumMember(Value = "NO_SIDE_EFFECT")]
+        NoSideEffect,
+        [EnumMember(Value = "MARGIN_BUY")]
+        MarginBuy,
+        [EnumMember(Value = "AUTO_REPAY")]
+        AutoRepay,
+    }
+}

BinanceExchange.API/Models/Request/CreateIsolatedOrderRequest.cs

@@ -0,0 +1,81 @@
+using BinanceExchange.API.Enums;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using System.Runtime.Serialization;
+using BinanceExchange.API.Models.Request.Interfaces;
+using BinanceExchange.API.Converter;
+
+namespace BinanceExchange.API.Models.Request
+{
+    /// <summary>
+    /// Request object used to create a new Binance Isolated account order
+    /// </summary>
+    [DataContract]
+    public class CreateIsolatedOrderRequest : IRequest
+    {
+        [DataMember(Order = 1)]
+        [JsonProperty("symbol")]
+        public string Symbol { get; set; }
+
+        [DataMember(Order = 2)]
+        [JsonProperty("isIsolated")]
+        public string IsIsolated { get; set; }
+
+        [DataMember(Order = 3)]
+        [JsonProperty("side")]
+        [JsonConverter(typeof(StringEnumConverter))]
+        public OrderSide Side { get; set; }
+
+        [DataMember(Order = 4)]
+        [JsonProperty("type")]
+        [JsonConverter(typeof(StringEnumConverter))]
+        public OrderType Type { get; set; }
+
+        [DataMember(Order = 5)]
+        [JsonProperty("quantity")]
+        [JsonConverter(typeof(StringDecimalConverter))]
+        public decimal Quantity { get; set; }
+
+        [DataMember(Order = 6)]
+        [JsonProperty("timeInForce")]
+        [JsonConverter(typeof(StringEnumConverter))]
+        public TimeInForce? TimeInForce { get; set; }
+
+        [DataMember(Order = 7)]
+        [JsonProperty("price")]
+        [JsonConverter(typeof(StringDecimalConverter))]
+        public decimal? Price { get; set; }
+
+        [DataMember(Order = 8)]
+        [JsonProperty("newClientOrderId")]
+        public string NewClientOrderId { get; set; }
+
+        [DataMember(Order = 9)]
+        [JsonProperty("stopPrice")]
+        [JsonConverter(typeof(StringDecimalConverter))]
+        public decimal? StopPrice { get; set; }
+
+        [DataMember(Order = 10)]
+        [JsonProperty("icebergQty")]
+        [JsonConverter(typeof(StringDecimalConverter))]
+        public decimal? IcebergQuantity { get; set; }
+
+        [DataMember(Order = 11)]
+        [JsonProperty("newOrderRespType")]
+        [JsonConverter(typeof(StringEnumConverter))]
+        public NewOrderResponseType? NewOrderResponseType { get; set; }
+
+        [DataMember(Order = 12)]
+        [JsonProperty("sideEffectType")]
+        [JsonConverter(typeof(StringEnumConverter))]
+        public SideEffectType? SideEffectType { get; set; }
+
+        [DataMember(Order = 13)]
+        [JsonProperty("recvWindow")]
+        public long? RecvWindow { get; set; }
+
+        [DataMember(Order = 14)]
+        [JsonProperty("timeStamp")]
+        public long TimeStamp { get; set; }
+    }
+}

BinanceExchange.API/Models/Request/IsolatedMarginAccountInfoRequest.cs

@@ -0,0 +1,28 @@
+using BinanceExchange.API.Enums;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using System.Runtime.Serialization;
+using BinanceExchange.API.Models.Request.Interfaces;
+using BinanceExchange.API.Converter;
+
+namespace BinanceExchange.API.Models.Request
+{
+    /// <summary>
+    /// Request object used to query Binance Isolated account info
+    /// </summary>
+    [DataContract]
+    public class IsolatedMarginAccountInfoRequest : IRequest
+    {
+        [DataMember(Order = 1)]
+        [JsonProperty("symbols")]
+        public string Symbols { get; set; }
+
+        [DataMember(Order = 2)]
+        [JsonProperty("recvWindow")]
+        public long? RecvWindow { get; set; }
+
+        [DataMember(Order = 3)]
+        [JsonProperty("timeStamp")]
+        public long TimeStamp { get; set; }
+    }
+}

BinanceExchange.API/Models/Request/MaxBorrowRequest.cs

@@ -0,0 +1,32 @@
+using BinanceExchange.API.Enums;
+using Newtonsoft.Json;
+using Newtonsoft.Json.Converters;
+using System.Runtime.Serialization;
+using BinanceExchange.API.Models.Request.Interfaces;
+using BinanceExchange.API.Converter;
+
+namespace BinanceExchange.API.Models.Request
+{
+    /// <summary>
+    /// Request object used to query the accoun't max borrow
+    /// </summary>
+    [DataContract]
+    public class MaxBorrowRequest : IRequest
+    {
+        [DataMember(Order = 1)]
+        [JsonProperty("asset")]
+        public string Asset { get; set; }
+
+        [DataMember(Order = 2)]
+        [JsonProperty("isolatedSymbol")]
+        public string IsolatedSymbol { get; set; }
+
+        [DataMember(Order = 3)]
+        [JsonProperty("recvWindow")]
+        public long? RecvWindow { get; set; }
+
+        [DataMember(Order = 4)]
+        [JsonProperty("timeStamp")]
+        public long TimeStamp { get; set; }
+    }
+}

BinanceExchange.API/Models/Response/IsolatedMarginAccountInfoResponse.cs

@@ -0,0 +1,73 @@
+using System.Collections.Generic;
+using System.Runtime.Serialization;
+using BinanceExchange.API.Models.Response.Interfaces;
+
+namespace BinanceExchange.API.Models.Response
+{
+    /// <summary>
+    /// Balance respomse providing information on assets
+    /// </summary>
+    [DataContract]
+    public class AssetType
+    {
+        [DataMember]
+        public string asset { get; set; }
+        [DataMember]
+        public bool borrowEnabled { get; set; }
+        [DataMember]
+        public long borrowed { get; set; }
+        [DataMember]
+        public decimal free { get; set; }
+        [DataMember]
+        public long interest { get; set; }
+        [DataMember]
+        public long locked { get; set; }
+        [DataMember]
+        public decimal netAsset { get; set; }
+        [DataMember]
+        public decimal netAssetOfBtc { get; set; }
+        [DataMember]
+        public bool repayEnabled { get; set; }
+        [DataMember]
+        public decimal totalAsset { get; set; }
+    }
+
+    [DataContract]
+    public class AssetResponse
+    {
+        [DataMember]
+        public AssetType baseAsset { get; set; }
+        [DataMember]
+        public AssetType quoteAsset { get; set; }
+        [DataMember]
+        public string symbol { get; set; }
+        [DataMember]
+        public bool isolatedCreated { get; set; }
+        [DataMember]
+        public long marginLevel { get; set; }
+        [DataMember]
+        public string marginLevelStatus { get; set; }
+        [DataMember]
+        public long marginRatio { get; set; }
+        [DataMember]
+        public decimal indexPrice { get; set; }
+        [DataMember]
+        public decimal liquidatePrice { get; set; }
+        [DataMember]
+        public decimal liquidateRate { get; set; }
+        [DataMember]
+        public bool tradeEnabled { get; set; }
+        [DataMember]
+        public bool enabled { get; set; }
+    }
+
+    /// <summary>
+    /// Balance respomse providing information on assets
+    /// </summary>
+    [DataContract]
+    public class IsolatedMarginAccountInfoResponse
+    {
+        [DataMember(Order = 1)]
+        public List<AssetResponse> assets { get; set; }
+    }
+}

BinanceExchange.API/Models/Response/MaxBorrowResponse.cs

@@ -0,0 +1,18 @@
+using System.Runtime.Serialization;
+using BinanceExchange.API.Models.Response.Interfaces;
+
+namespace BinanceExchange.API.Models.Response
+{
+    /// <summary>
+    /// Balance respomse providing information on assets
+    /// </summary>
+    [DataContract]
+    public class MaxBorrowResponse
+    {
+        [DataMember(Order = 1)]
+        public decimal amount { get; set; }
+
+        [DataMember(Order = 2)]
+        public decimal borrowLimit { get; set; }
+    }
+}