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#Idempotency

Every post I've written about Idempotency — 1 article, across Engineering. Most recent: “Idempotency Is a Protocol, Not a Key.”

Posts tagged #Idempotency

Engineering01

Idempotency Is a Protocol, Not a Key

The first time I shipped idempotency as a UUID header and a Redis lookup, a duplicate charge slipped through a week later. These are my notes on treating idempotency as a four-part protocol — dedup, determinism, concurrent safety, downstream propagation — with a minimal Kotlin plus Postgres implementation that holds up under retry.

May 9