Posts tagged idempotency
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Content initialization is one ordered pipeline: create tables, correct the schema, seed static data, and upsert notes and courses. Even idempotent steps can observe an intermediate state when an operator double-clicks o…
An operational database cannot be changed in one shot like a fresh database. Preserve existing rows, converge to the same state on repeated runs, and expose enough failure context for a safe retry.
Periodic tasks show up in any backend. Nightly aggregates, external data collection, expired-token cleanup. At small scale, cron or an in-process scheduler is enough; at larger scale, distributed queues and workers appe…
When writing an API on top of HTTP, REST is the word that comes up most often. It stands for Representational State Transfer, organized in Roy Fielding's 2000 doctoral dissertation.