websocket using C#

marinus

iam newbie use C# to get tick

i make GUI and get tick but thereis some eror
who can help me ?

Raunak

@marinus please paste the error

marinus

i make like this

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net.WebSockets;
using System.Threading;
using System.Net;

namespace ambil_spot
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}

    private void button1_Click(object sender, EventArgs e)
    {
        string data = "{\"ticks\":\"R_100\"}";

        var bws = new BinaryWS();
        bws.Connect().Wait();

        bws.SendRequest(data).Wait();
        bws.StartListen();

    }
}

class BinaryWS
{
    private ClientWebSocket ws = new ClientWebSocket();
    private Uri uri = new Uri("wss://ws.binaryws.com/websockets/v3");

    public async Task SendRequest(string data)
    {

        while (this.ws.State == WebSocketState.Connecting) { };
        if (this.ws.State != WebSocketState.Open)
        {
            throw new Exception("Connection is not open.");
        }

        var reqAsBytes = Encoding.UTF8.GetBytes(data);
        var ticksRequest = new ArraySegment<byte>(reqAsBytes);

        await this.ws.SendAsync(ticksRequest,
            WebSocketMessageType.Text,
            true,
            CancellationToken.None);

        //Console.WriteLine("The request has been sent: ");
        // Console.WriteLine(data);
        //Console.WriteLine("\r\n \r\n");
        textBox1.Text += "The request has been sent: " + "\r\n";


    }

    public async Task StartListen()
    {
        WebSocketReceiveResult result;
        while (this.ws.State == WebSocketState.Open)
        {
            var buffer = new ArraySegment<byte>(new byte[1024]);
            do
            {
                result = await this.ws.ReceiveAsync(new ArraySegment<byte>(buffer.Array), CancellationToken.None);

                if (result.MessageType == WebSocketMessageType.Close)
                {
                    //Console.WriteLine("Connection Closed!");
                    textBox1.Text += "Connection Closed!" + "\r\n";
                    break;
                }
                else
                {
                    var str = Encoding.UTF8.GetString(buffer.Array, 0, result.Count);
                    //Console.WriteLine("Received Data at: " + DateTime.Now);
                    // Console.WriteLine(str);
                    // Console.WriteLine("\r\n");
                    textBox1.Text += str + "\r\n";
                }

            } while (!result.EndOfMessage);
        }
    }

    public async Task Connect()
    {
        //Console.WriteLine("Prepare to connect to: " + this.uri.ToString());
        //Console.WriteLine("\r\n");

        ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11;
        await ws.ConnectAsync(uri, CancellationToken.None);

        //Console.WriteLine("The connection is established!");
        //Console.WriteLine("\r\n");
        textBox1.Text += "The connection is established!" + "\r\n";
    }


}

}

Raunak

@marinus what error you are facing with this code can you point out or print that error? As starting point you can refer code here as well https://developers.binary.com/demos/

charmx

You need to authorize first before requesting tick stream/history. Check this https://developers.binary.com/api/#authorize

Raunak

@charmx no its not needed, tick stream/history are unauthorized calls

marinus

thanks, @Raunak and @charmx i fixed that;