Access Surcharge Information via Code

Our Surcharge extensions save their total information as an extension attribute. The below code shows how you would access the individual totals:

private function addFoomanTotalLines($magentoSalesOrder)
{
	$extAttr = $magentoSalesOrder->getExtensionAttributes();
	if (!$extAttr) {
	    return;
	}

	$foomanGroup = $extAttr->getFoomanTotalGroup();
	if (empty($foomanGroup)) {
	    return;
	}

	$totals = $foomanGroup->getItems();
	if (empty($totals)) {
	    return;
	}
	foreach ($totals as $total) {
	        /** @var \Magento\Quote\Api\Data\OrderTotalInterface $total */
		$description = $total->getLabel();
		$baseAmount = $total->getBaseAmount();
		$baseTaxAmount = $total->getBaseTaxAmount();
		$identifier = $total->getTypeId();
		$qty = 1;
	}
}