Idempotency and Retry in a Payment Core: Operations That Can't Be Duplicated and Can't Be Forgotten Build operations that can't be duplicated and can't be forgotten — that's the contract for a payment core. On the core I built for ROSSTRAFFY (20,000+ successful transactions/day, 99. 99% uptime),...
Source: [Dev.to](https://dev.to/aleksander_frolov/idempotency-and-retry-in-a-payment-core-operations-that-cant-be-duplicated-and-cant-be-forgotten-5ff7)