Engineering3 min read
Idempotency under 100 competing requests: a reproducible in-process experimentI scheduled 100 calls against one in-process idempotency key. The side-effect callback ran once; a real crash or a second worker is still untested.
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Posts tagged #API Reliability · 2 posts. All writing
2 posts
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2026
Engineering4 min read
Idempotency when HTTP timeouts lie about server-side effectsA timeout does not undo a committed write. Model retries, duplicate operations and correctly scoped idempotency keys.
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