instead of rental data in local storage, using stripe metadata

backend/routes/stripe.js

@@ -8,7 +8,7 @@ const platformFee = 0.1;
 
 router.post("/create-checkout-session", async (req, res) => {
   try {
-    const { itemName, total, return_url } = req.body;
+    const { itemName, total, return_url, rentalData } = req.body;
 
     if (!itemName) {
       return res.status(400).json({ error: "No item name found" });
@@ -20,10 +20,24 @@ router.post("/create-checkout-session", async (req, res) => {
       return res.status(400).json({ error: "No return_url found" });
     }
 
+    // Prepare metadata - Stripe metadata keys must be strings
+    const metadata = rentalData
+      ? {
+          itemId: rentalData.itemId,
+          startDate: rentalData.startDate,
+          endDate: rentalData.endDate,
+          startTime: rentalData.startTime,
+          endTime: rentalData.endTime,
+          totalAmount: rentalData.totalAmount.toString(),
+          deliveryMethod: rentalData.deliveryMethod,
+        }
+      : {};
+
     const session = await StripeService.createCheckoutSession({
       item_name: itemName,
       total: total,
       return_url: return_url,
+      metadata: metadata,
     });
 
     res.json({ clientSecret: session.client_secret });
@@ -44,6 +58,7 @@ router.get("/checkout-session/:sessionId", async (req, res) => {
       status: session.status,
       payment_status: session.payment_status,
       customer_email: session.customer_details?.email,
+      metadata: session.metadata,
     });
   } catch (error) {
     console.error("Error retrieving checkout session:", error);