// Get currency value in BTC for the given amount
// where currency like "ETH", "NEO", "TRX", ...
public static decimal BtcValue(this IExchangeAPI api, string currency, decimal amount)
{
var globalSymbol = currency + "-BTC";
var symbol = api.GlobalSymbolToExchangeSymbol(globalSymbol);
var t = api.GetTicker(symbol);
var btcAmount = t.MidPrice() * amount;
Console.WriteLine("{0,-8} {1,-6} {2,13:0.00000000} btc:{3,13:0.00000000}", api.Name, currency, amount, btcAmount);
return(btcAmount);
}