12 min readFah Swe Team366 views65 likes6 comments
API integration fails in the edge cases: retries, idempotency keys, signature verification, and partial refunds. Fah Swe designs payment and webhook flows to be safe under duplicate delivery.
Bangladesh stacks often need bKash/Nagad plus international Stripe/PayPal. Abstract providers behind one ledger.
SMS and WhatsApp OTPs must be rate-limited and logged. Never SMS secrets that grant permanent access.
WebRTC and third-party CRMs follow the same rule: secrets on server, short-lived client tokens, observability on failure rates.
Bring Fah Swe your Postman collection or vendor docs — we deliver production-grade adapters with tests.
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