Yuelin Ou

Data & AI Engineer focusing on enterprise integration systems design and AI agents/automations. Bachelor's degree in Mathematics.

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Idempotent Write Paths: Keeping an Integration Pipeline Correct When Messages Repeat

Table of Contents A reconciliation that didn't add upWhat you key idempotency on is the whole gameWhere the dedup check actually livesWhen a duplicate arrives: ignore, overwrite, or mergeStitching identities together across systemsHow do you prove you didn't lose anythingA ...