Binance.TradeRobot.API/SDKAdapter/APIClient/BinanceAPIClient.cs

using Binance.Net.Clients;
using Binance.Net.Objects;
using CryptoExchange.Net.Authentication;
using SDKAdapter.Model;
using System;
using System.Collections.Generic;
using System.Linq;

namespace SDKAdapter.APIClient
{
    public class BinanceAPIClient : BaseAPIClient
    {
        private BinanceClient binanceClient;

        public BinanceAPIClient(long uid, string apiKey, string secret) : base(uid, apiKey, secret)
        {
            var spotClientOption = new BinanceApiClientOptions()
            {
                BaseAddress = "https://api.binance.com",
                ApiCredentials = new ApiCredentials(apiKey, secret)
            };
            var usdFuturesClientOption = new BinanceApiClientOptions()
            {
                BaseAddress = "https://fapi.binance.com",
                ApiCredentials = new ApiCredentials(apiKey, secret)
            };
            binanceClient = new BinanceClient(new BinanceClientOptions()
            {
                UsdFuturesApiOptions = usdFuturesClientOption,
                SpotApiOptions = spotClientOption
            });
        }

        public override IList<IsolatedMarginAccountAsset> GetIsolatedMarginAccountAssets()
        {
            var r = binanceClient.SpotApi.Account.GetIsolatedMarginAccountAsync().Result;
            if (!r.Success)
                throw new Exception($"获取逐仓杠杆账户信息失败 {r.Error?.Message}");

            return r.Data.Assets.Select(asset => new IsolatedMarginAccountAsset()
            {
                Symbol = asset.Symbol,

                BaseAsset = asset.BaseAsset.Asset,
                BaseBorrowed = asset.BaseAsset.Borrowed,
                BaseFree = asset.BaseAsset.Free,
                BaseInterest = asset.BaseAsset.Interest,
                BaseLocked = asset.BaseAsset.Locked,
                BaseNetAsset = asset.BaseAsset.NetAsset,

                QuoteAsset = asset.QuoteAsset.Asset,
                QuoteBorrowed = asset.QuoteAsset.Borrowed,
                QuoteFree = asset.QuoteAsset.Free,
                QuoteInterest = asset.QuoteAsset.Interest,
                QuoteLocked = asset.QuoteAsset.Locked,
                QuoteNetAsset = asset.QuoteAsset.NetAsset
            }).ToList();
        }

        public override decimal QueryMaxLoanAmount(string symbol)
        {
            var r = binanceClient.SpotApi.Account.GetMarginMaxBorrowAmountAsync("USDT", symbol).Result;
            if (!r.Success)
                throw new Exception($"查询最大借币额度失败 {r.Error?.Message}");
            return r.Data.Quantity;
        }

        public override IsolatedMarginLoanResponse IsolatedMarginLoan(string symbol, decimal loanAmount)
        {
            var r = binanceClient.SpotApi.Account.MarginBorrowAsync("USDT", loanAmount, true, symbol).Result;
            if (!r.Success)
                throw new Exception($"借币失败 {r.Error?.Message}");

            var isolatedMarginAccountAssetList = GetIsolatedMarginAccountAssets();
            var currentAsset = isolatedMarginAccountAssetList.FirstOrDefault(s => s.Symbol == symbol);
            if (currentAsset == null)
                throw new Exception($"借币已完成,但未查询到{symbol}的资产信息 {r.Error?.Message}");
            return new IsolatedMarginLoanResponse()
            {
                CurrentLoanAmount = loanAmount,
                AccountLoanAmount = currentAsset.QuoteBorrowed
            };
        }

        public override decimal IsolatedMarginRepayLoan(string symbol, decimal repayAmount)
        {
            return base.IsolatedMarginRepayLoan(symbol, repayAmount);
        }
    }
}