function closePendingInvoice($invoiceObj)
{
$invoiceId = $invoiceObj->id;
$subscriptionId = $invoiceObj->subscriptionId;
$startDate = $invoiceObj->startDate;
$endDate = $invoiceObj->endDate;
$chargeInCents = MeterBilling::getUsageCharge($startDate, $endDate, $subscriptionId);
$addChargeParam = array("amount" => $chargeInCents, "description" => "monthly usage");
/*
* Calling ChargeBee Add Charge Invoice API and add Charge to invoice
* based on the usage made by customer.
*/
ChargeBee_Invoice::addCharge($invoiceId, $addChargeParam);
$addonQuantity = MeterBilling::getQuantityUsed($startDate, $endDate, $subscriptionId);
$addAddonCharge = array("addonId" => "wallpapers", "addonQuantity" => $addonQuantity);
/*
* Calling the ChargeBee Add Addon Charge Invoice API and add the no of
* addons used by customers to the invoice.
*/
ChargeBee_Invoice::addAddonCharge($invoiceId, $addAddonCharge);
/*
* Closing the invoice and Collecting the payment(if auto collection is on)
* by calling the ChargeBee Collect Invoice API.
*/
ChargeBee_Invoice::collect($invoiceId);
}
return;
}
$content = file_get_contents('php://input');
/*
* Assigning the recieved content to ChargeBee Event object.
*/
$event = ChargeBee_Event::deserialize($content);
/*
* Checking the event type as Invoice Created to add Charge for Meter Billing.
*/
$eventType = $event->eventType;
if ($eventType == "invoice_created") {
$invoiceId = $event->content()->invoice()->id;
$invoiceObj = ChargeBee_Invoice::retrieve($invoiceId)->invoice();
if ($invoiceObj->status == "pending") {
$meterBilling = new MeterBilling();
$meterBilling->closePendingInvoice($invoiceObj);
echo "Invoice has been closed successfully";
} else {
echo "Invoice is not in pending state";
}
}
}
/* Check if the request is from chargebee.
* You can secure the webhook either using
* - Basic Authentication
* - Or check for specific value in a parameter.
* For demo purpose we are using the second option though
* basic auth is strongly preferred. Also store the key
* securely in the server rather than hard coding in code.
*/