Automatically send invoices upon incoming orders
This script checks for incoming orders and opens a new window with the invoice when an order comes in. The invoice is then sent automatically via email to the customer.

1. On EasyWebshop, at Settings > More options > Invoice & Tax > Automated actions, enable Assign invoice number & Email invoice.
2. Install a browser add-on that allows you to inject JavaScript code into a web page. In Firefox you can use "Website scripting" by Anbarasan.
3. Add a new script. Name: Send invoice automatically. URL: https://easywebshop.com/software/order(.*)
4. Insert the JavaScript code below.

Notes:
- Leave the browser window open at https://easywebshop.com/software/order
- The script checks every 10 seconds (10000 milliseconds), this can be lowered if there are a lot of incoming orders

The JavaScript code:

// This script automatically sends the invoice on incoming order

// Check for incoming order
function checkIncomingOrder() {
	if (document.getElementById('ssenotif') !== null && document.getElementById('ssenotif').innerHTML.indexOf('/software/order') != -1) {
		location.href = '/software/order?downloadinvoice=1';
	}
}
setInterval(checkIncomingOrder, 10000); // time in milliseconds

// Get window query string
const urlParams		= new URLSearchParams(window.location.search);
const downloadInvoice	= urlParams.get('downloadinvoice');

// Download the invoice
if (downloadInvoice == 1) {

	// Get last order code
	const ordercode = document.getElementById('orderlist').firstChild.getAttribute('data-ordercode');

	// Open invoice window
	console.log('Downloading invoice for order: ' + ordercode);
	const openedWindow = window.open('/software/invoice/' + ordercode);

	// Close invoice window
	setTimeout(function() { openedWindow.close() }, 10000);
}


console.log("Auto invoice send activated");