As you integrate Stripe Checkout into your Next.js application, you'll likely encounter a few common hurdles. This section aims to equip you with the knowledge to diagnose and resolve these issues quickly, ensuring a smooth payment experience for your users.
- Incorrect Stripe API Keys:
This is the most frequent culprit. Ensure you are using your secret key on the server-side (e.g., in your API routes) and your publishable key on the client-side. Mixing them up or using test keys in production (or vice-versa) will lead to authentication errors. Always verify your .env.local file and ensure the correct keys are being loaded.
import Stripe from 'stripe';
const stripe = new Stripe(process.env.STRIPE_SECRET_KEY, {
apiVersion: '2023-10-16',
});import { loadStripe } from '@stripe/stripe-js';
const stripePromise = loadStripe(process.env.NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY);- CORS Issues with API Routes:
When your client-side code tries to communicate with your Next.js API routes (e.g., to create a checkout session), Cross-Origin Resource Sharing (CORS) policies can sometimes interfere. Ensure your API routes are configured to allow requests from your frontend domain, especially during development.
// Example in your API route handler (pages/api/create-checkout-session.js)
import NextCors from 'nextjs-cors';
async function handler(req, res) {
await NextCors(req, res, {
origin: '*', // Or your specific frontend origin
methods: ['GET', 'HEAD', 'OPTIONS', 'POST', 'PUT', 'PATCH', 'DELETE'],
credentials: true,
});
// ... your Stripe logic here
}- Client-Side Error Handling for Stripe.js:
When you redirect to Stripe Checkout using stripePromise.then((stripe) => stripe.redirectToCheckout({ sessionId: ... })), errors can occur if the sessionId is invalid or if there are network issues. Always wrap this call in a try...catch block to gracefully handle these situations and inform your users.