Building Instant Digital Fulfillment: A 30-Second Stripe-to-Download Pipeline

For digital product vendors, instant automated fulfillment is both a competitive advantage and a support-cost reducer. This architecture demonstrates how webhook-driven automation, JWT-based token validation, and stateless design eliminate manual fulfillment entirely, while flat-file storage enables rapid deployment before database complexity becomes necessary. The emphasis on webhook signature validation and idempotent processing provides a practical security blueprint that prevents costly vulnerabilities in payment-driven workflows.