Added email to stripe checkout session

server/src/routes/createOrder.ts

@@ -136,6 +136,14 @@ router.post("/order", UserAuth, async (req: AuthedRequest, res: Response) => {
                     type: "startDate.invalid"
                 }]);
 
+            const emailQuery = await client.query(`
+            SELECT email FROM users WHERE id = $1;
+            `, [
+                req.user?.userId
+            ]);
+
+            const email: string = emailQuery.rows[0].email;
+
             const priceQuery = await client.query(`
             SELECT hourly_price FROM trainers WHERE id = $1;
             `, [
@@ -167,7 +175,8 @@ router.post("/order", UserAuth, async (req: AuthedRequest, res: Response) => {
                 expires_at: Math.floor(Date.now()/1000 + 60*31),
                 mode: 'payment',
                 success_url: `http://localhost:5173/orders`,
-                cancel_url: `http://localhost:5173`
+                cancel_url: `http://localhost:5173`,
+                customer_email: email
             });
 
             const insertQuery = await client.query(`