Checkout server side redirect

                                      
              fastify.post("/create-checkout-session", async (request, reply) => {
                const session = await stripe.checkout.sessions.create({
                  payment_method_types: ['card'],
                  line_items: [
                    {
                      price_data: {
                        currency: 'usd',
                        product_data: {
                          name: 'Tiny Demos',
                          images: ['https://i.imgur.com/EHyR2nP.png'],
                        },
                        unit_amount: 2000,
                      },
                      quantity: 1,
                    },
                  ],
                  mode: 'payment',
                  success_url: `https://${process.env.PROJECT_DOMAIN}.glitch.me/success`,
                  cancel_url: `https://${process.env.PROJECT_DOMAIN}.glitch.me/cancel`,
                });

                reply.redirect(session.url);
            });