Backup your Unraid USB remotely. Just replace the hostname, username, password at the top of the file with your info, make sure `request` and `request-promise-native` are installed and then just run it with `node index.js`

unraid-usb-backup.js

const request = require('request-promise-native');
const fs = require('fs');

let hostname = 'http://unraid-url.com';
let username = 'root';
let password = 'mypassword';

(async () => {

	// Get CSRF Token
	process.stdout.write("Getting CRSF Token...");
	let csrfRegex = /name:'csrf_token', value:'(.*?)'/;
	let csrfResponse = await request({
		method: 'GET',
		url: hostname,
		auth: {
			user: username,
			pass: password
		}
	});
	let token = csrfRegex.exec(csrfResponse)[1];
	console.log(" Done! (" + token + ")");


	// Generate backup
	let timer = setInterval(() => {
		process.stdout.write(".")
	}, 1000);
	process.stdout.write("Generating backup Zip...");
	let zipPath = await request({
		method: 'POST',
		url: hostname + '/webGui/include/Download.php',
		form: {
			cmd: 'backup',
			csrf_token: token
		},
		auth: {
			user: username,
			pass: password
		}
	});
	clearInterval(timer);
	console.log(" Done! (" + zipPath + ")");

	// Download backup
	let totalBytes = 0;
	let receivedBytes = 0;
	let lastPercent = 0;
	process.stdout.write("Downloading... ");
	request({
		method: 'GET',
		url: hostname + '/' + zipPath,
		auth: {
			user: username,
			pass: password
		},
	})
		.on('error', (err) => {
			console.error(err);
		})
		.on('response', (data) => {
			totalBytes = parseInt(data.headers['content-length']);
		})
		.on('data', (chunk) => {
			receivedBytes += chunk.length;
			var percentage = Math.round((receivedBytes * 100) / totalBytes);
			if(percentage > lastPercent) {
				lastPercent = percentage;
				process.stdout.clearLine();
				process.stdout.cursorTo(0);
				process.stdout.write("Downloading... (" + Math.round( totalBytes / (1024 * 1024)) + "MB) " + percentage + "%");
			}
		})
		.on('end', async () => {
			console.log(" Done!");

			// Delete backup
			process.stdout.write("Deleting zip off server...");
			await request({
				method: 'POST',
				url: hostname + '/webGui/include/Download.php',
				form: {
					cmd: 'unlink',
					file: zipPath,
					csrf_token: token
				},
				auth: {
					user: username,
					pass: password
				}
			});
			console.log("Done!");

		})
		.pipe(fs.createWriteStream(zipPath));
})();