Node.js SignalR V2.2.0 client

client.js

'use strict';

const jsdom = require('jsdom');
const window = jsdom.jsdom().defaultView;

const url = 'http://YOUR_SIGNALR_URL'; // Used for CORS
const hubs = 'http://YOUR_SIGNALR_HUBS_URL';

function loadScript(src) {
	return new Promise((resolve, reject) => {
		let script = window.document.createElement('script');

		script.src = src;

		window.document.body.appendChild(script);

		script.onload = (e) => resolve(e);
		script.onerror = (err) => reject(err);
	});
}

function connect() {
	let connection = window.$.connection;
	let hub = connection.YOUR_HUB_NAME;

	function start() {
		connection
			.hub
			.start({ transport: 'auto', waitForPageLoad: false })
			.done(() => {
				// Send a message to the server
				// It depends on the hub how the methods are named
				hub.server.subscribe('YOUR_MESSAGE');

				console.log('connection started!', connection.hub.id);
			});
	}

	connection.hub.url = url; // Enable CORS
	connection.hub.logging = true;

	// Hub publish callback
	// It depends on the hub how the methods are named
	hub.client.publish = (data) => {
		console.log('Hub published data: ', data);
	};

	// Disconnected callback
	connection
		.hub
		.disconnected(() => {
			console.log('disconnected...');

			setTimeout(() => start(), 10000); // Restart connection after 10 seconds.
		});

	// Start the connection
	start();
}

// Load jQuery, SignalR, the hub and then connect
jsdom.jQueryify(window, 'http://code.jquery.com/jquery-2.2.2.min.js', () => {
	loadScript('http://ajax.aspnetcdn.com/ajax/signalr/jquery.signalr-2.2.0.min.js')
		.then(() => loadScript(hubs))
		.then(() => connect())
		.catch((error) => console.log('error', error));
});