Idempotent APIs: Because Users Always Double-Click

Aug 24, 2026 8:24

Audio file

Duplicate API requests aren't edge cases — they're a certainty. Users click twice when a spinner lingers, networks retransmit packets, and mobile clients resend whatever they last attempted after waking from sleep. This episode of Automatic digs into idempotency: the design principle that lets your API absorb all of that chaos and still produce exactly one outcome. The discussion is grounded in…