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How to roll out database schema changes safely in production using expand-and-contract, compatibility periods, and backfills that tolerate mixed-state reality.
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- Published on
How to write API integration tests that verify real persistence, auth rules, contracts, idempotency, concurrency, and failure handling across request boundaries.- Published on
A practical production workflow for finding slow SQL queries, reading plans, picking the right fix, and avoiding fake optimizations.- Published on
Why AI code review often improves speed more than judgment, and how teams can use it without missing system-level risk in production.- Published on
How idempotency keys prevent duplicate API writes by combining atomic key reservation, payload validation, and deterministic response replay.