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Most payment integration bugs don't appear during development; they appear when real money starts moving.
Stripe and PayPal are more than checkout buttons. They're critical financial infrastructure that demands reliable engineering.
Some of the most common issues I see are:
• Missing webhook signature verification
• No transaction logging for audits and debugging
• Weak refund workflows that create reconciliation problems
• No idempotency protection, resulting in duplicate charges
These aren't just technical oversights they can lead to lost revenue, customer frustration, and costly support tickets.
When I build payment systems, I focus on:
✅ Secure webhook handling
✅ Reliable payment state management
✅ Idempotent API design
✅ Comprehensive transaction logging
✅ Clean refund and reconciliation workflows
A payment system should be secure, observable, and resilient, not just functional.
If you're building a SaaS, marketplace, or subscription platform, investing in the payment architecture early saves significant engineering time later.
What payment integration challenge has been the most difficult in your product?
#WebDevelopment #Stripe #PayPal #PaymentGateway #NextJS #React #NodeJS #FullStackDeveloper #SaaS #Startup #FinTech #API #SoftwareEngineering #Contra #BuildInPublic
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Very professional! 😃
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Really like the staggered photo layout, Sahil. Lovely editorial feel.
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