4 Articles
A practical guide to fixing the race condition web app bug: unique constraints, atomic updates, row locks, cache locks, and idempotency keys.
A practical guide to API rate limiting: fixed window, sliding window, token bucket, leaky bucket, and the 429 response with Retry-After.
A practical guide to nodejs project structure: feature-based folders, separating routes, controllers and services, config, and avoiding circular deps.
Learn how an idempotency key API pattern makes retries safe, prevents duplicate charges, and handles concurrent requests with a key store.