public static async Task <IEnumerable <(BfProductCode ProductCode, string Symbol)> > GetAvailableMarketsAsync(this BitFlyerClient client, CancellationToken ct)
{
var result = new List <(BfProductCode ProductCode, string Symbol)>();
foreach (var task in client.GetMarketsAllAsync(ct))
{
var markets = (await task).GetContent();
foreach (var market in markets)
{
if (market.ProductCode.StartsWith("BTCJPY"))
{
if (string.IsNullOrEmpty(market.Alias))
{
continue; // ******** BTCJPY future somtimes missing alias, skip it ********
}
result.Add(((BfProductCode)Enum.Parse(typeof(BfProductCode), market.Alias.Replace("_", "")), market.ProductCode));
}
else
{
result.Add(((BfProductCode)Enum.Parse(typeof(BfProductCode), market.ProductCode.Replace("_", "")), market.ProductCode));
}
}
}
return(result.Distinct(e => e.ProductCode));
}