examples/minquantity.html

<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8" />
	<title></title>
</head>
<body>
	<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
		<fieldset>
			<input type="hidden" name="cmd" value="_cart" />
			<input type="hidden" name="add" value="1" />
			<input type="hidden" name="business" value="example@minicartjs.com" />
			<input type="hidden" name="item_name" value="Test Product" />
			<input type="hidden" name="quantity" value="1" />
			<input type="hidden" name="amount" value="1.00" />
			<input type="hidden" name="currency_code" value="USD" />
			<strong>Test Product</strong>
			<input type="submit" name="submit" value="Add to cart" />
		</fieldset>
	</form>

	<form action="https://www.paypal.com/cgi-bin/webscr" method="post">
		<fieldset>
			<input type="hidden" name="cmd" value="_cart" />
			<input type="hidden" name="add" value="1" />
			<input type="hidden" name="business" value="labs-feedback-minicart@paypal.com" />
			<input type="hidden" name="item_name" value="Test Product 2" />
			<input type="hidden" name="quantity" value="1" />
			<input type="hidden" name="amount" value="1.00" />
			<input type="hidden" name="currency_code" value="USD" />
			<strong>Test Product 2</strong>
			<input type="submit" name="submit" value="Add to cart" />
		</fieldset>
	</form>

	<script src="../dist/minicart.js"></script>
	<script>
		paypal.minicart.render();

		paypal.minicart.cart.on('checkout', function (evt) {
			var items = this.items(),
				len = items.length,
				total = 0,
				i;

			// Count the number of each item in the cart
			for (i = 0; i < len; i++) {
				total += items[i].get('quantity');
			}

			if (total < 3) {
				alert('The minimum order quantity is 3. Please add more to your shopping cart before checking out');
				evt.preventDefault();
			}
		});

	</script>
</body>
</html>