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vsleevslee
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add trade stream for BtcTurk (#772)
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‎src/ExchangeSharp/API/Exchanges/BtcTurk/ExchangeBtcTurkAPI.cs

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using Newtonsoft.Json.Linq;
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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.Text;
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using System.Threading.Tasks;
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namespace ExchangeSharp
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{
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public sealed partial class ExchangeBtcTurkAPI : ExchangeAPI
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{
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public override string BaseUrl { get; set; } = "https://api.btcturk.com";
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public override string BaseUrlWebSocket { get; set; } = "wss://ws-feed-pro.btcturk.com";
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public ExchangeBtcTurkAPI()
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{
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NonceStyle = NonceStyle.UnixMilliseconds;
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NonceOffset = TimeSpan.FromSeconds(0.1);
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// WebSocketOrderBookType = not implemented
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MarketSymbolSeparator = "";
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MarketSymbolIsUppercase = true;
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// ExchangeGlobalCurrencyReplacements[] not implemented
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}
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protected internal override async Task<IEnumerable<ExchangeMarket>> OnGetMarketSymbolsMetadataAsync()
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{ /*{
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"data": {
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"timeZone": "UTC",
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"serverTime": 1645091654418,
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"symbols": [
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{
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"id": 1,
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"name": "BTCTRY",
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"nameNormalized": "BTC_TRY",
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"status": "TRADING",
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"numerator": "BTC",
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"denominator": "TRY",
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"numeratorScale": 8,
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"denominatorScale": 2,
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"hasFraction": false,
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"filters": [
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{
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"filterType": "PRICE_FILTER",
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"minPrice": "0.0000000000001",
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"maxPrice": "10000000",
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"tickSize": "10",
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"minExchangeValue": "99.91",
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"minAmount": null,
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"maxAmount": null
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}
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],
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"orderMethods": [
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"MARKET",
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"LIMIT",
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"STOP_MARKET",
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"STOP_LIMIT"
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],
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"displayFormat": "#,###",
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"commissionFromNumerator": false,
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"order": 1000,
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"priceRounding": false,
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"isNew": false,
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"marketPriceWarningThresholdPercentage": 0.2500000000000000,
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"maximumOrderAmount": null,
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"maximumLimitOrderPrice": 5895000.0000000000000000,
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"minimumLimitOrderPrice": 58950.0000000000000000
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}
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}*/
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var instruments = await MakeJsonRequestAsync<JToken>("api/v2/server/exchangeinfo");
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var markets = new List<ExchangeMarket>();
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foreach (JToken instrument in instruments["symbols"])
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{
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markets.Add(new ExchangeMarket
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{
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MarketSymbol = instrument["name"].ToStringUpperInvariant(),
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QuoteCurrency = instrument["denominator"].ToStringInvariant(),
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BaseCurrency = instrument["numerator"].ToStringInvariant(),
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});
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}
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return markets;
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}
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protected override async Task<IWebSocket> OnGetTradesWebSocketAsync(Func<KeyValuePair<string, ExchangeTrade>, Task> callback, params string[] marketSymbols)
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{
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if (marketSymbols == null || marketSymbols.Length == 0)
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{
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marketSymbols = (await GetMarketSymbolsMetadataAsync()).Select(m => m.MarketSymbol).ToArray();
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}
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return await ConnectPublicWebSocketAsync("/market", async (_socket, msg) =>
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{ /* {[
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991,
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{
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"type": 991,
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"current": "5.1.0",
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"min": "2.3.0"
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}
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]}*/
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/* {[
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451,
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{
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"type": 451,
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"pairId": 0,
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"symbol": "BTCTRY",
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"id": 0,
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"method": 0,
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"userId": 0,
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"orderType": 0,
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"price": "0",
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"amount": "0",
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"numLeft": "0.00",
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"denomLeft": "0",
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"newOrderClientId": null
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}
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]}] */
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JToken token = JToken.Parse(msg.ToStringFromUTF8());
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if (token[0].ToObject<int>() == 991)
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{
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// no need to do anything with this
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}
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//else if (token["method"].ToStringInvariant() == "ERROR" || token["method"].ToStringInvariant() == "unknown")
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//{
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// throw new APIException(token["code"].ToStringInvariant() + ": " + token["message"].ToStringInvariant());
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//}
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else if (token[0].ToObject<int>() == 451)
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{
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// channel 451 OrderInsert. Ignore.
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}
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else if (token[0].ToObject<int>() == 100)
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{ /*
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{[
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100,
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{
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"ok": true,
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"message": "join|trade:BTCTRY",
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"type": 100
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}
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]}
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*/
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// successfully joined
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}
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else if (token[0].ToObject<int>() == 421)
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{ /*
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{[
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421,
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{
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"symbol": "BTCTRY",
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"items": [
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{
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"D": "1651204111661",
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"I": "100163785789620803",
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"A": "0.0072834700",
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"P": "586484.0000000000",
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"S": 0
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},
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{
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"D": "1651202811844",
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"I": "100163785789620737",
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"A": "0.0004123600",
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"P": "585778.0000000000",
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"S": 1
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}
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],
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"channel": "trade",
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"event": "BTCTRY",
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"type": 421
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}
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]} */
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var data = token[1];
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var dataArray = data["items"].ToArray();
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for (int i = 0; i < dataArray.Length; i++)
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{
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var trade = dataArray[i].ParseTrade("A", "P", "S", "D", TimestampType.UnixMilliseconds, "I", "0");
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string marketSymbol = data["symbol"].ToStringInvariant();
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trade.Flags |= ExchangeTradeFlags.IsFromSnapshot;
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if (i == dataArray.Length - 1)
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trade.Flags |= ExchangeTradeFlags.IsLastFromSnapshot;
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await callback(new KeyValuePair<string, ExchangeTrade>(marketSymbol, trade));
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}
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}
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else if (token[0].ToObject<int>() == 422)
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{ /* {[
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422,
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{
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"D": "1651204593830",
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"I": "100163785789620825",
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"A": "0.0008777700",
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"P": "586950.0000000000",
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"PS": "BTCTRY",
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"S": 1,
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"channel": "trade",
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"event": "BTCTRY",
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"type": 422
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}
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]} */
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var data = token[1];
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var trade = data.ParseTrade("A", "P", "S", "D", TimestampType.UnixMilliseconds, "I", "0");
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string marketSymbol = data["PS"].ToStringInvariant();
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await callback(new KeyValuePair<string, ExchangeTrade>(marketSymbol, trade));
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}
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else Logger.Warn($"Unexpected channel {token[0].ToObject<int>()}");
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}, async (_socket) =>
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{ /*
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[
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151,
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{
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"type": 151,
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"channel": 'CHANNEL_NAME_HERE',
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"event": 'PAIR_NAME_HERE',
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"join": True
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}
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]
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*/
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foreach (var marketSymbol in marketSymbols)
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{
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var subscribeRequest = new List<object>();
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subscribeRequest.Add(151);
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subscribeRequest.Add(new
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{
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type = 151,
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channel = "trade",
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@event = marketSymbol,
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join = true, // If true, it means that you want to subscribe, if false, you can unsubscribe.
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});
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await _socket.SendMessageAsync(subscribeRequest.ToArray());
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}
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});
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}
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}
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public partial class ExchangeName { public const string BtcTurk = "BtcTurk"; }
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}

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