/// <summary>
/// Instantiate and connect a new Level 2 data feed.
/// </summary>
/// <param name="symbol">The symbol to watch.</param>
public KlineFeed(string symbol, KlineType type) : base(null, null, null)
{
Connect().ContinueWith(async(t) =>
{
await SubscribeOne(symbol, type);
});
}
/// <summary>
/// Unsubscribe from the specified ticker.
/// </summary>
/// <param name="symbol">The trading pair (symbol) of the ticker to remove.</param>
/// <param name="type">The <see cref="KlineType"/> of the ticker to remove.</param>
public virtual async Task UnsubscribeOne(string symbol, KlineType type)
{
if (disposedValue)
{
throw new ObjectDisposedException(GetType().FullName);
}
if (!Connected)
{
return;
}
SymbolKline sk = SymbolKline.Empty;
foreach (var t in activeTickers)
{
if (t.Symbol == symbol && t.KlineType == type)
{
sk = t;
break;
}
}
if (sk == SymbolKline.Empty)
{
return;
}
var topic = $"{Topic}:{sk}";
var e = new FeedMessage()
{
Type = "unsubscribe",
Id = connectId.ToString("d"),
Topic = topic,
Response = true
};
await Send(e);
}
/// <summary>
/// Subscribe to the specified ticker.
/// </summary>
/// <param name="symbol">The trading pair (symbol) of the ticker to add.</param>
/// <param name="type">The <see cref="KlineType"/> of the ticker to add.</param>
/// <returns></returns>
public virtual async Task SubscribeOne(string symbol, KlineType type)
{
if (disposedValue)
{
throw new ObjectDisposedException(GetType().FullName);
}
if (!Connected)
{
await Connect();
}
foreach (var t in activeTickers)
{
if (t.Symbol == symbol && t.KlineType == type)
{
return;
}
}
var sk = new SymbolKline(symbol, type);
activeTickers.Add(sk);
var topic = $"{Topic}:{sk}";
var e = new FeedMessage()
{
Type = "subscribe",
Id = connectId.ToString("d"),
Topic = topic,
Response = true,
PrivateChannel = false
};
await Send(e);
}
