Race Conditions in APIs: TOCTOU in Payments, Coupons, and Rate Limiting

Race Conditions in APIs: TOCTOU in Payments, Coupons, and Rate Limiting Every standard scanner sends request A, waits for the response, and only then sends request B. Every race condition in production lives in the window between a server-side check and the update that follows it. These two facts guarantee that the most financially damaging class...