Reconnecting websocket after loss of internet

[jkorf]

Reconnecting websocket after loss of internet

[JKorf]

Currently no. You can detect the socket closing using the BinanceStreamSubscription object returned when subscribing, but you'll just have to manually resubscribe. Might be a good addition though.

[snrchang]

Ok thanks

[RonaldSwaine]

I've been using things like this in my console apps:

        public static void Subscribe(bool autoReconnect, params string[] symbols)
        {
            foreach (var symbol in symbols)
            {
                Console.Write(string.Concat("Subscribing to ", symbol, " ..."));

                var sub = _socket.SubscribeToKlineStream(symbol, Interval, HandleIncomingKline);
                sub.Data.Closed += () => { Sub_Closed(symbol, autoReconnect); };
                sub.Data.Error += (e) => { Sub_Error(symbol, e); };

                if(!sub.Success)
                {
                    Console.WriteLine(string.Concat("Failed: (", sub.Error.Code,") ", sub.Error.Message));
                    continue;
                }

                _subs[symbol] = sub.Data;

                Console.WriteLine("Connected");
            }
        }

        private static void Sub_Error(string symbol, Exception e)
        {
            Console.WriteLine(string.Concat("Sub Error w/ ", symbol,": ", e.Message));
        }

        private static void Sub_Closed(string symbol, bool autoReconnect = true)
        {
            Console.WriteLine(string.Concat("Sub Closed: ", symbol));
            if(autoReconnect)
            {
                Console.WriteLine(string.Concat("Reconnecting to ", symbol));

                // dont auto reconnect this sub since we can't impose a delay without dealing with threads
                Subscribe(false, symbol);
                // but if you wanted to make Sub_Closed async, you could also do:
                // Console.WriteLine(string.Concat("Reconnecting to ", symbol, " in 5s"));
                // await System.Threading.Tasks.Task.Delay(5000);
            }
        }

[JKorf]

I've implemented an auto reconnect try. When the connection gets closed it will try to reconnect. This will handle the auto disconnect Binance does every 24 hours automatically. For reconnecting after loss of internet a solution as @RonaldSwaine provided should do. I'll probably implement some method to be able to reconnect a subscription easier later on.

[JKorf]

I've implemented auto reconnecting in the latest version (v3.0.10)