Network requests fail. Timeouts happen. Retries are inevitable. If your API charges a customer’s credit card twice because a TCP
Continue readingBuild APIs That Survive Retries: Idempotency Keys in Go
Editor’s note, September 2026: Four months on, nothing here has aged out. Hypothesis is at 6.168.x on PyPI and still
Continue readingStop Guessing Edge Cases: Property-Based Testing in Go and Python
Editor’s note, September 2026: This piece was written in May 2026, shortly after Profiles entered Alpha. The status sweep as
The first half of 2026 has already delivered a wave of releases that reshape how we think about performance, language
Event-driven architecture is the default for most microservices systems today. Services communicate by publishing events to a message broker —
Continue readingThe Outbox Pattern: Solving the Dual-Write Problem in Event-Driven Microservices
Every production service eventually faces the same question: how do you protect it from being overwhelmed? Whether it’s a sudden
Continue readingThe Art of Rate Limiting: 4 Algorithms Every Engineer Should Know