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Working notes from the studio. The tools I build, the workflows I keep, the mistakes I paid for.

4 entries · latest 2026-10-05

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RAXXO Studios 9 min read

Writing Idempotent Webhooks: Patterns That Survive Retries

Every webhook arrives twice eventually, so design for it from day one A unique dedupe key plus a processed-events table kills double-acts Read current state before acting so a retry is a no-op Return 2xx fast, do the slow work...

BackendTutorialsWebhooks
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TLDR This entry in one minute
  • Every webhook arrives twice eventually, so design for it from day one
  • A unique dedupe key plus a processed-events table kills double-acts
  • Read current state before acting so a retry is a no-op

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