public async Task <bool> ConnectAsync()
{
if (_client == null)
{
_client = new WebsocketClient(new Uri(_clientAddress))
{
ReconnectTimeout = null // this is to prevent the client from auto disconnecting if we are not getting a response within X time
};
_client.ReconnectionHappened.Subscribe(async r => await OnReconnect(r));
_client.MessageReceived.Subscribe(async m => await OnMessage(m));
_client.DisconnectionHappened.Subscribe(async d => await Disconnected(d));
}
if (IsConnected)
{
return(true); // we are already connected, no need to connect again
}
try
{
await _client.StartOrFail();
await Connected(); // trigger event and logger
return(true);
}
catch (Exception)
{
return(false);
}
}
public async Task <IWebsocketClient> InitAsync()
{
if (_logger.IsInfo)
{
_logger.Info($"Starting ETH stats [{_urlFromConfig}]...");
}
string websocketUrl = BuildUrl();
Uri url = new Uri(websocketUrl);
_client = new WebsocketClient(url)
{
ErrorReconnectTimeout = TimeSpan.FromMilliseconds(_reconnectionInterval),
ReconnectTimeout = null
};
_client.MessageReceived.Subscribe(async message =>
{
if (_logger.IsDebug)
{
_logger.Debug($"Received ETH stats message '{message}'");
}
if (string.IsNullOrWhiteSpace(message.Text))
{
return;
}
if (message.Text.Contains(ServerPingMessage))
{
await HandlePingAsync(message.Text);
}
});
try
{
await _client.StartOrFail();
}
catch (Exception e)
{
if (!_client.Url.AbsoluteUri.EndsWith("/api"))
{
_client.Url = new Uri(websocketUrl + "/api");
}
await _client.StartOrFail();
}
if (_logger.IsDebug)
{
_logger.Debug($"Started ETH stats.");
}
return(_client);
}
private async Task StartSocketAsync()
{
var disconnects = new List <DisconnectEvent>();
var messages = new List <ResponseMessage>();
//start temporary collecting messages and disconnects to local collection
using IDisposable disconnectSubscription = _socket.DisconnectionHappened
.Select(info => new DisconnectEvent(info.CloseStatus, info.CloseStatusDescription, info.Exception)).Subscribe(disconnects.Add);
using IDisposable messageSubscription = _socket.MessageReceived.Subscribe(messages.Add);
//wait until start finishes
await _socket.StartOrFail();
//start real subscriptions and prepend any temporary collected data to them
_disconnectSubscription = _socket.DisconnectionHappened
.Select(info => new DisconnectEvent(info.CloseStatus, info.CloseStatusDescription, info.Exception))
.StartWith(disconnects)
.Subscribe(Events.DisconnectSubject);
_messageSubscription = _socket.MessageReceived.StartWith(messages).Subscribe(OnMessage);
}
public async Task ConnectAsync(CancellationToken cancellationToken = default)
{
if (string.IsNullOrWhiteSpace(_token))
{
throw new InvalidOperationException("Токен не установлен");
}
if (_ws.NativeClient?.State == WebSocketState.Open && _authorized)
{
return;
}
await _ws.StartOrFail();
var connectCommand = new Command
{
Id = InterlockedEx.Increment(ref _nextOperationId),
Method = MethodType.Connect,
Params = new ConnectRequest
{
Token = _token
}.ToByteString()
};
// TODO: retry with exponential backoff, reinit connection on connection lost
var response = await HandleCommand(connectCommand, cancellationToken);
var connectResult = ConnectResult.Parser.ParseFrom(response);
_authorized = true;
//_clientId = authResult.Client;
_connectedEventSource.OnNext(new ConnectedEvent
{
Client = Guid.Parse(connectResult.Client),
Expires = connectResult.Expires,
Ttl = connectResult.Ttl,
Version = connectResult.Version
});
}