Lessons From Integrating Payment Gateways in Laravel and Node.js Production Systems

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The author draws on experience integrating Stripe, Reepay, and Fenerum into live Laravel and Node.js systems and found the same recurring problems each time. The recommended approach is to confirm payment status only through signed webhooks, with handlers designed to be idempotent so retried events don't create duplicate orders. Webhook endpoints should respond quickly while heavier processing runs in background workers with retry logic, using tools like Redis with Bull or Laravel queues. Refunds, expired cards, disputes, and subscription renewals are identified as the main areas where money is lost, and should be modeled as core states rather than edge cases. The article also stresses that support staff should be able to resolve customer questions without reading code.

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