/// <inheritdoc />
public BinanceWebsocketClient(IBinanceCommunicator communicator)
{
BnbValidations.ValidateInput(communicator, nameof(communicator));
_communicator = communicator;
_messageReceivedSubscription = _communicator.MessageReceived.Subscribe(HandleMessage);
}
/// <summary>
/// Combine url with subscribed streams
/// </summary>
public Uri PrepareSubscriptions(Uri baseUrl, params SubscriptionBase[] subscriptions)
{
BnbValidations.ValidateInput(baseUrl, nameof(baseUrl));
if (subscriptions == null || !subscriptions.Any())
{
throw new BinanceBadInputException("Please provide at least one subscription");
}
var streams = subscriptions.Select(x => x.StreamName).ToArray();
var urlPart = string.Join("/", streams);
var urlPartFull = $"/stream?streams={urlPart}";
var currentUrl = baseUrl.ToString().Trim();
if (currentUrl.Contains("stream?"))
{
// do nothing, already configured
return(baseUrl);
}
var newUrl = new Uri($"{currentUrl.TrimEnd('/')}{urlPartFull}");
return(newUrl);
}
/// <inheritdoc />
public BinanceWebsocketClient(IBinanceCommunicator communicator, IBinanceReferenceOrderBookCommunicator referenceOrderBookCommunicator = null)
{
BnbValidations.ValidateInput(communicator, nameof(communicator));
_communicator = communicator;
_messageReceivedSubscription = _communicator.MessageReceived.Subscribe(HandleMessage);
_referenceOrderBookCommunicator = referenceOrderBookCommunicator;
_rlobMessageReceivedSubscription = _referenceOrderBookCommunicator.MessageReceived.Subscribe(HandleMessage);
}
/// <summary>
/// Serializes request and sends message via websocket communicator.
/// It logs and re-throws every exception.
/// </summary>
/// <param name="request">Request/message to be sent</param>
public async Task Send <T>(T request)
{
try
{
BnbValidations.ValidateInput(request, nameof(request));
var serialized = BinanceJsonSerializer.Serialize(request);
await _communicator.Send(serialized).ConfigureAwait(false);
}
catch (Exception e)
{
Log.Error(e, L($"Exception while sending message '{request}'. Error: {e.Message}"));
throw;
}
}