Connect node.js based socket.io WebSocket server from a C# program

Question

I need to connect Node.js based WebSocket from a C# windows form code

Node module used https://github.com/Automattic/socket.io

I am using superwebsocket and WebSocket4Net

using SuperSocket.Common;
using SuperSocket.SocketBase;
using SuperSocket.SocketBase.Config;
using SuperSocket.SocketBase.Logging;
using SuperWebSocket;
using SuperWebSocket.SubProtocol;
using WebSocket4Net;

......
......

WebSocket webSocketClient = new WebSocket("ws://localhost:8080/");
webSocketClient.Error += new EventHandler<SuperSocket.ClientEngine.ErrorEventArgs>(webSocketClient_Error);
webSocketClient.AllowUnstrustedCertificate = true;
webSocketClient.Opened += new EventHandler(webSocketClient_Opened);
webSocketClient.Closed += new EventHandler(webSocketClient_Closed);
webSocketClient.MessageReceived += new EventHandler<MessageReceivedEventArgs>(webSocketClient_MessageReceived);
webSocketClient.Open();

But only webSocketClient_Error callback triggers always, can anyone help?

Dickens A S · Accepted Answer · 2015-07-24 08:51:26Z

10

Node.JS socket.io library uses a different URL pattern but you have given root URL, Please change your URL as follows then it should work

WebSocket webSocketClient = new WebSocket("ws://localhost:8080/socket.io/?EIO=3&transport=websocket");

answered Jul 24, 2015 at 8:51

Dickens A S

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2 Comments

fbenoit Over a year ago

@ZigmaEmpire can you explain or give a pointer where this is explained please?

Dickens A S Over a year ago

The URL is identified by practically executing the socket.io javascript client on a chrome browser and watching the network traffic screen provided by google chrome browser, there is no proper documentation for this

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