99 lines
3.4 KiB
C#
99 lines
3.4 KiB
C#
using Knoks.Core.Entities;
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using Knoks.Core.Logic.Interfaces;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net.Http;
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using System.Text;
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using System.Threading.Tasks;
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namespace Knoks.Core.Exchanges
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{
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public class CexExchange : IExchange
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{
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private ExchangeSettings settings;
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public CexExchange(ExchangeSettings settings)
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{
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this.settings = settings;
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this.settings.ApiUrl = settings.ApiUrl ?? "https://cex.io/api/";
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}
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public async Task<IEnumerable<Ticker>> GetMarkets()
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{
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HttpClient client = new HttpClient();
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HttpResponseMessage response = await client.GetAsync(settings.ApiUrl + "currency_limits");
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if (response.IsSuccessStatusCode)
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{
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var data = await response.Content.ReadAsJsonAsync<CexResponse>();
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return data.Data.Pairs.Where(s => settings.AllowedCurrencies.Contains(s.Symbol2.ToUpper())).
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Select(it => new Ticker() { TickerDisplayName = $"{it.Symbol1}/{it.Symbol2}", Currency1 = Replace(it.Symbol1), Currency2 = Replace(it.Symbol2), Currency = Replace(it.Symbol1), TickerSymbol = $"{it.Symbol1}{it.Symbol2}" });
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}
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throw new NotSupportedException("Cex error");
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}
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public async Task<TickerData> GetTickerData(TickerInfo ticker, DateTime start, DateTime end)
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{
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//https://cex.io/api/ticker/{Currency1}/{Currency2}
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HttpClient client = new HttpClient();
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var response = await client.GetAsync($"{settings.ApiUrl}ticker/{ticker.Currency1}/{ticker.Currency2}");
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if (response.IsSuccessStatusCode)
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{
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var data = await response.Content.ReadAsJsonAsync<TickerType>();
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return new TickerData()
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{
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TickerTime = ConvertFromLong(data.Timestamp),
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TickerId = ticker.TickerId,
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Open = data.Low,
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High = data.High,
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Low = data.Low,
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Close = data.Last,
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Volume = data.Volume
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};
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}
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throw new NotSupportedException("CEX error");
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}
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internal class TickerType
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{
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public object this[string propertyName]
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{
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get { return this.GetType().GetProperty(propertyName).GetValue(this, null); }
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set { this.GetType().GetProperty(propertyName).SetValue(this, value, null); }
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}
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public decimal Low { get; set; }
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public decimal High { get; set; }
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public decimal Last { get; set; }
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public decimal Volume { get; set; }
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public long Timestamp { get; set; }
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/*
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"volume30d": "81150.14153359",
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"bid": 17400.04,
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"ask": 17418.2
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*/
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}
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private long ConvertToLong(DateTime time)
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{
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return (long)(time - Constants._1970Time).TotalMilliseconds;
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}
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private DateTime ConvertFromLong(long ms)
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{
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return Constants._1970Time.AddMilliseconds(ms);
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}
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private string Replace(string asset)
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{
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if (settings.ReplaceSymbols != null && settings.ReplaceSymbols.ContainsKey(asset))
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{
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return settings.ReplaceSymbols[asset];
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}
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return asset;
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}
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}
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}
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