Midtrans::notification()->onPending(function($transaction) {
// do something
})->onSuccess(function($transaction) {
// do something
})->onExpired(function($transaction) {
// do something
});

public function notificationsHandler(Request $request) {
        $notification = Midtrans::notification();
        /**
        * $notificationArray = $notification->toArray();
        * $notificationObject = $notification->toObject();
        **/
        $transaction = $notification->transaction_status;
        $fraud = $notification->fraud_status;

        $order = Order::where('ordernu', $notification->order_id)->first();
        $status = Midtrans::status($notification->order_id);

        return response()->json([
            'data' => $transaction,
            'fraud' => $fraud,
            'order' => $order,
            'status' => $status,
        ]);
}