Payment Integration

Payment processing is the backbone of every revenue-generating web application, yet implementing it correctly involves navigating a maze of compliance requirements, security protocols, and edge cases. From handling failed payments to managing subscription lifecycle events, the complexity of a robust payment system extends far beyond a simple checkout button. Fabricate abstracts this complexity by generating complete Stripe integration from high-level descriptions.

Stripe has established itself as the industry standard for online payments, supporting 135 currencies and dozens of payment methods. When you tell Fabricate to add payments, the AI generates a complete integration layer including product and price configuration, checkout session creation, webhook event handling, and customer portal setup. The generated code follows Stripe's recommended patterns for security and reliability.

Subscription billing introduces additional complexity that many developers underestimate. Plan changes, prorated charges, trial periods, grace periods, failed payment retries, and dunning emails all need proper handling. Fabricate generates the complete subscription lifecycle management system, including the UI for plan selection, upgrade and downgrade flows, and a billing portal where customers manage their payment methods and invoices.

The checkout experience is generated to integrate seamlessly with your application's design. Rather than redirecting users to a generic Stripe-hosted page, Fabricate creates embedded checkout components that maintain your branding throughout the purchase flow. Custom success and cancellation pages are generated to handle post-checkout scenarios appropriately.

Revenue analytics are built into the admin dashboard, providing real-time visibility into monthly recurring revenue, customer lifetime value, churn rates, and payment failure rates. These metrics help SaaS founders make informed decisions about pricing, retention strategies, and growth planning without needing separate analytics tools.

Fabricate generates Stripe integration using the latest Stripe API with server-side payment intent creation and client-side confirmation. This pattern ensures PCI compliance by keeping card data entirely within Stripe's infrastructure. Your application server never processes, stores, or transmits sensitive payment information.

Checkout flows use Stripe Checkout Sessions for maximum security and conversion optimization. The AI generates server-side endpoints that create checkout sessions with proper line items, tax configuration, and success/cancel URLs. Client-side code redirects users to Stripe's hosted checkout or renders embedded checkout components depending on your preference.

Webhook handling is a critical component of reliable payment processing. Fabricate generates webhook endpoints that verify Stripe signatures, process payment events idempotently, and update your application state accordingly. Key events handled include checkout.session.completed, invoice.paid, invoice.payment_failed, customer.subscription.updated, and customer.subscription.deleted.

Subscription management integrates with your user authentication system. Each user record links to a Stripe customer ID, enabling seamless plan management. The billing portal gives customers self-service access to update payment methods, view invoices, and manage their subscriptions without requiring admin intervention.