Facade Pattern is a simplified interface to a complex system. Instead of dealing with dozens of classes and methods, the client works with one simple facade that hides all the complexity inside.
It’s like a concierge at a hotel: you don’t call the laundry, restaurant, and housekeeping separately. You tell the concierge what you need, and they coordinate everything for you.
Continue readingSingleton is one of the most controversial patterns. Some call it an anti-pattern, others use it everywhere. Let’s explore how to properly implement Singleton in Go and when it’s actually needed.
Adapter Pattern solves the problem of interface incompatibility. You have code expecting one interface, and a library providing another. An adapter is a layer that makes them compatible.
VACUUM is PostgreSQL’s built-in cleanup tool. Let’s break down when to use it and why rushing into it can do more harm than good.
Continue readingAPI Gateway is a single entry point for all clients. It routes requests to appropriate microservices, handles authentication, rate limiting, and aggregates responses. Let’s build one in Go.
Continue readingAPI Gateway - это единая точка входа для всех клиентов. Он маршрутизирует запросы к нужным микросервисам, обрабатывает аутентификацию, rate limiting и агрегирует ответы. Давайте построим его на Go.
Continue readingFactory Pattern solves one problem: how to create objects without being tied to concrete types. Instead of directly calling a constructor, use a factory function that decides which object to create.
