API Design
Designing Idempotent APIs Without Race Conditions
Learn how to build robust HTTP idempotency using atomic state machines, payload hashing, and database-backed locks.
Topic
Backend Architecture
A collection of essays to explore, one idea at a time.
Essays
Newest first
Backend Architecture
Mastering Singleflight: Stop Cache Stampedes Safely
Learn how request coalescing with Go's singleflight stops cache stampedes, plus practical fixes for context cancellation and pointer data races.