public async Task <ExternalLimitOrder> CreateLimitOrderAsync(string exchangeName, string assetPair,
decimal price, decimal volume, OrderType orderType)
{
IExchange exchange = GetExchange(exchangeName);
AssetPairModel assetPairModel = _marketInstrumentService.GetAssetPair(assetPair, exchange.Name);
if (assetPairModel == null)
{
throw new FailedOperationException("Asset pair settings does not exist");
}
price = price.TruncateDecimalPlaces(assetPairModel.PriceAccuracy, orderType == OrderType.Sell);
volume = Math.Round(volume, assetPairModel.VolumeAccuracy);
if (volume < assetPairModel.MinVolume)
{
throw new FailedOperationException("The volume is too small");
}
string orderId = await exchange.CreateLimitOrderAsync(assetPair, price, volume, orderType);
var externalLimitOrder =
new ExternalLimitOrder(orderId, exchange.Name, assetPair, price, volume, orderType);
return(externalLimitOrder);
}
