/// <summary>
/// This function adds a parse option tot the table, this should only be used to initialize the environment.
/// </summary>
/// <param name="tradingPairString">String representation of the trading pair.</param>
/// <param name="tradingPair">The trading pair.</param>
public static void AddParseEntry(string tradingPairString, TradingPair tradingPair)
{
Guard.Argument(tradingPairString).NotNull().NotEmpty().NotWhiteSpace();
Guard.Argument(tradingPair).NotNull();
// Clean the pair string of all whitespace
string cleanedPairString = RemoveAllWhiteSpace(tradingPairString);
if (Table.ContainsKey(cleanedPairString))
{
Table[cleanedPairString] = tradingPair;
return;
}
Table.Add(cleanedPairString, tradingPair);
}
/// <inheritdoc />
public override object ReadJson(JsonReader reader, Type objectType, object existingValue, JsonSerializer serializer)
{
var str = serializer.Deserialize <string>(reader);
return(TradingPair.Parse(str));
}
/// <summary>
/// Download all currencies from Binance.
/// </summary>
public static void Sync()
{
using (var client = new BinanceClient())
{
// Disect by extracting the known base pairs.
Regex rx = new Regex(
"(.*)(BNB|BTC|ETH|XRP|USD|USDT|TUSD|PAX|USDC|USDS)",
RegexOptions.Compiled | RegexOptions.IgnoreCase);
var listQuery = client.GetExchangeInfo();
if (!listQuery.Success)
{
throw new Exception("Could not fetch TradingPair info, no connection to Binance!");
}
foreach (var item in listQuery.Data.Symbols)
{
decimal stepSize = 0;
decimal pricePrecision = 0;
// Extract the pair from the string
var pair = rx.Match(item.Name);
if (!pair.Success)
{
Console.WriteLine($"Could not extract pairs from {item.Name}, skipping");
continue;
}
string left = pair.Groups[1].Value;
string right = pair.Groups[2].Value;
if (string.IsNullOrEmpty(left) || string.IsNullOrEmpty(right))
{
Console.WriteLine($"Either left: |{left}| or right: |{right}| --> was a null or empty string (from {item.Name})");
continue;
}
// Extract the stepSize from the filter
foreach (var filter in item.Filters)
{
if (filter is BinanceSymbolLotSizeFilter filter1)
{
stepSize = filter1.StepSize;
}
if (filter is BinanceSymbolPriceFilter filter2)
{
pricePrecision = filter2.TickSize;
}
}
if (stepSize == 0 || pricePrecision == 0)
{
Console.WriteLine($"Could not extract all filters from {item.Name}, skipping");
continue;
}
// Add the instance to the parseTable to make it available for parsing
int quantityDecimals = -(int)Math.Log10((double)stepSize);
int priceDecimals = -(int)Math.Log10((double)pricePrecision);
var result = new TradingPair(new Currency(left), new Currency(right), quantityDecimals, priceDecimals);
try
{
AddParseEntry(pair.Value, result);
}
catch (ArgumentException)
{
// Double entries because of binance
}
}
}
}
