npm install gulp 

var signalR = require('yourpath/signalr-client') var hubConnection = new signalR.HubConnection(url); var hubProxy = hubConnection.createHubProxy(hubName); hubProxy.on(eventName,function(...args){ }) hubConnection.started(()=>{ hubProxy.invoke(methodname,...args).then(()=>{ }) }) hubConnection.start() 

started received connectionSlow reconnecting reconnected disconnected