Design Patterns for Idempotency in Distributed Systems
Design Patterns for Idempotency in Distributed Systems

Design Patterns for Idempotency in Distributed Systems

Author
Shiv Bade
Tags
idempotency
design patterns
Published
April 5, 2016
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In any retry-prone system — payment gateways, provisioning services, async job queues — idempotency is your safety net.
Patterns: - Client-generated UUIDs - Idempotency keys with deduplication storage - Replay protection using Redis or database constraints
Example: Stripe’s use of Idempotency-Key header is a textbook implementation.
Make sure your side effects are idempotent or cancel-safe.