Tag: system-design

All the articles with the tag "system-design".

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  Designing Idempotent APIs: Stripe's Idempotency-Key Pattern

  Published: 16 Aug, 2026 |  at  10:00 AM

  A source-backed analysis of idempotency keys, safe retries, concurrency, replay, and a proposed payment API design.

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  Online Database Migrations Without Downtime

  Published: 16 Aug, 2026 |  at  10:00 AM

  A source-backed analysis of dual-write migrations, backfill, shadow reads, cutover, and correctness under continuous production traffic.

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  Designing a Distributed Job Scheduler

  Published: 15 Aug, 2026 |  at  10:00 AM

  An operational design for timezone-aware cron, one-off jobs, and DAG workflows with at-least-once execution and auditable recovery.

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  Designing a Durable Multi-Channel Notification System

  Published: 15 Aug, 2026 |  at  10:00 AM

  An operational design for durable, idempotent, multi-channel notifications at one million channel messages per day.