Update app.js

app.js

@@ -106,7 +106,7 @@ app.post('/webhook/paystack', (req, res) => {
   const isRefund = /refund/i.test(event);
   const isChargeSuccess = /charge\.success/i.test(event);
   const isInvoiceOrSubscription = /invoice\.(payment_succeeded|paid)|subscription\./i.test(event);
-  const isPayment = isChargeSuccess || isInvoiceOrSubscription;
+  const isPayment = isChargeSuccess; // || isInvoiceOrSubscription;
 
   if (isRefund || isPayment) {
     console.log('--- PAYSTACK WEBHOOK (INTERESTING EVENT) ---');