c# - How to connect the socket.io with backend -

i trying implement chat in ionic project have tried far connect socket.io backend (c#) below.

here index.html

<script src="http://192.xxx.x.xxx:8888/socket.io/socket.io.js"></script> 

and here created socketservice.js file looks

 var example = angular.module('starter.socketservice',[])      example.service('socketservice',function(socketfactory){         console.log("socketservice");             return socketfactory({                  iosocket: io.connect('http://192.xxx.x.xxx:8888')               });             console.log(socketfactory);         })        

finaly created folder called server have chat-server.js file in there.

var io = require('socket.io')(8888);   console.log(io); io.on('connection', function(socket){     console.log(socket);      socket.on('send:message', function(msg){         console.log(msg);         socket.emit('message', msg);         console.log("success");     });  });  

error:

get http://192.xxx.x.xxx:8888/socket.io/socket.io.js net::err_connection_timed_out

what have done worng there have connect server getting error

can 1 tell me step step explaination in c# develop socket.io