bybit_websocketsharp_tls_handshake_error_resolved.cs

using System;
using System.Threading;
using WebSocketSharp;


namespace TestWebSocketSharp
{

    class Program
    {

        private enum SslProtocolsHack
        {
            Tls = 192,
            Tls11 = 768,
            Tls12 = 3072
        }

        static void Main(string[] args)
        {

            using (var ws = new WebSocket("wss://stream-testnet.bybit.com/realtime"))
                {
                    Console.WriteLine("ReadyState = " + ws.ReadyState.ToString()); // ReadyState=Connecting 상태

                    ws.OnOpen += (sender, e) =>
                    {
                        Console.WriteLine("OnOpen");
                        Console.WriteLine("ReadyState = " + ws.ReadyState.ToString()); // ws.Connect 가 성공적이면 ReadyState 는 Open 이며 이 상태에서 서버와 통신가능. 
                    };


                    ws.OnClose += (sender, e) =>
                    {
                        Console.WriteLine("OnClose");

                        var sslProtocolHack = (System.Security.Authentication.SslProtocols)(SslProtocolsHack.Tls12 | SslProtocolsHack.Tls11 | SslProtocolsHack.Tls);

                        //TLS 핸드세이크 오류 발생시 프로토콜 변경하여 재접속처리함.                        
                        if (e.Code == 1015 && ws.SslConfiguration.EnabledSslProtocols != sslProtocolHack)
                        {
                            ws.SslConfiguration.EnabledSslProtocols = sslProtocolHack;
                            ws.Connect(); 
                        }


                    };
                    ws.OnMessage += (sender, e) =>
                    {
                        Console.WriteLine("OnMessage : " + e.Data);
                    };


                    ws.Connect(); // Connect to the server.

                    Console.WriteLine("\nType 'exit' to exit.\n");

                    while (true)
                    {
                        Thread.Sleep(100);
                        Console.Write("> ");
                        var msg = Console.ReadLine();
                        if (msg == "exit")
                            break;
                    }
                } // using (var ws = new WebSocket("wss://stream-testnet.bybit.com/realtime"))

        } // static void Main(string[] args)





    } // class Program
}

https://igotit.tistory.com/2739