/// <summary>
/// Get only ask offers of a market.
/// </summary>
/// <param name="counterAssetCode">Code of counter asset (must not be XRP)</param>
/// <param name="counterAssetGateway">Gateway address of counter asset</param>
internal List<FiatAsk> GetOrderBookAsks(string counterAssetCode, string counterAssetGateway, bool includeAutoBridged = false)
{
var command = new MarketDepthRequest
{
id = 2,
taker_pays = new Take { currency = counterAssetCode, issuer = counterAssetGateway },
taker_gets = new Take { currency = _fiatCurreny, issuer = _issuerAddress }
};
string askData = sendToRippleNet(Helpers.SerializeJson(command));
if (null == askData)
{
return null;
}
if (!checkError(String.Format("GetOrderBookAsks({0}, {1})", counterAssetCode, counterAssetGateway), askData))
{
return null;
}
var asks = Helpers.DeserializeJSON<MarketDepthFiatAsksResponse>(askData);
if (null == asks.result || null == asks.result.offers)
{
_logger.Error("askData JSON is " + Environment.NewLine + askData);
return null;
}
if (!includeAutoBridged)
{
return asks.result.offers;
}
//Check auto-bridged orders by taking asset1/XRP and XRP/asset2 and counting asset1/asset2
command = new MarketDepthRequest
{
id = 4,
taker_pays = new Take { currency = counterAssetCode, issuer = counterAssetGateway },
taker_gets = new Take { currency = Const.NATIVE_ASSET }
};
string natAskData = sendToRippleNet(Helpers.SerializeJson(command));
if (null == natAskData)
{
return asks.result.offers;
}
if (!checkError(String.Format("#2 GetOrderBookAsks: orders for {0}.{1}", counterAssetCode, counterAssetGateway), natAskData))
{
return asks.result.offers;
}
var natAsks = Helpers.DeserializeJSON<MarketDepthAsksResponse>(natAskData);
if (null == natAsks.result)
{
_logger.Error(String.Format("natAskData JSON is " + Environment.NewLine + natAskData));
return asks.result.offers;
}
command = new MarketDepthRequest
{
id = 5,
taker_pays = new Take { currency = Const.NATIVE_ASSET },
taker_gets = new Take { currency = _fiatCurreny, issuer = _issuerAddress }
};
string natBidData = sendToRippleNet(Helpers.SerializeJson(command));
if (null == natBidData)
{
return asks.result.offers;
}
if (!checkError(String.Format("#3 GetOrderBookAsks: orders for {0}.{1}", _fiatCurreny, _issuerAddress), natBidData))
{
return asks.result.offers;
}
var natBids = Helpers.DeserializeJSON<MarketDepthBidsResponse>(natBidData);
if (null == natBids.result)
{
_logger.Error("natBidData JSON is " + Environment.NewLine + natBidData);
return asks.result.offers;
}
//NOTE: takes only "best" auto-bridged order and only over XRP. Considering other options would make this code
// too complicated and the benefits are questionable
Ask bestAsk = natAsks.result.offers[0];
Bid bestBid = natBids.result.offers[0];
double abPrice = bestAsk.Price / bestBid.Price;
//Inject the auto-bridged order to the resulting list
for (int i = 0; i < asks.result.offers.Count; i++)
{
if (abPrice < asks.result.offers[i].Price)
{
var abOrder = new FiatAsk
{
Account = "AUTOBRIDGED",
TakerPays = new Take { value = abPrice.ToString() },
TakerGets = new Take { value = (1.0).ToString() } //NOTE: ugly workaround for the .Price getter
//Don't need anything else for trading purposes
};
asks.result.offers.Insert(i, abOrder);
break;
}
}
return asks.result.offers;
}
internal Market GetMarketDepth()
{
//BIDs
var command = new MarketDepthRequest
{
id = 2,
taker_pays = new Take { currency = Const.NATIVE_ASSET },
taker_gets = new Take { currency = _fiatCurreny, issuer = _issuerAddress }
};
string bidData = sendToRippleNet(Helpers.SerializeJson(command));
if (null == bidData)
{
return null;
}
if (!checkError("GetMarketDepth", bidData))
{
return null;
}
var bids = Helpers.DeserializeJSON<MarketDepthBidsResponse>(bidData);
if (null == bids.result || null == bids.result.offers)
{
_logger.Error("bidData JSON is " + Environment.NewLine + bidData);
return null;
}
//ASKs
command = new MarketDepthRequest
{
id = 3,
taker_pays = new Take { currency = _fiatCurreny, issuer = _issuerAddress },
taker_gets = new Take { currency = Const.NATIVE_ASSET }
};
string askData = sendToRippleNet(Helpers.SerializeJson(command));
if (null == askData)
{
return null;
}
if (!checkError("GetMarketDepth", askData))
{
return null;
}
var asks = Helpers.DeserializeJSON<MarketDepthAsksResponse>(askData);
if (null == asks.result || null == asks.result.offers)
{
_logger.Error("askData JSON is " + Environment.NewLine + askData);
return null;
}
var market = new Market
{
Bids = bids.result.offers,
Asks = asks.result.offers
};
return market;
}
