📰 Dev.to · Kyryl

The slowest part of a microservices architecture is rarely the network. It is the weeks it takes to get a field added to an API you do not own.

Two services writing to the same table pay every cost of a microservice split and get none of the isolation. Here is how that plays out in an incident, and what

Wiring your liveness and readiness probes to the same deep health check is a category error. When a dependency drops, Kubernetes restart-loops a fleet of perfec

A plain CREATE INDEX takes a SHARE lock and blocks every write to the table for the whole build. On a busy production table that is a multi-minute outage. Here

Fixture constructors bury the one field a test actually cares about under thirty irrelevant ones. Builders fix the signal-to-noise problem, at a real cost.

The one-interface-one-impl pattern in Spring exists because of a framework constraint that disappeared around Spring Boot 2.0. Here is why most service interfac

I never gave much thought to where Swagger annotations lived. Wire up springdoc, scatter @Operation...