DEV Community Course Teaches Hexagonal Architecture in Go via Mini E-Commerce App

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A hands-on course published on DEV Community guides developers through building a small e-commerce backend called MiniMart using Go and hexagonal (ports and adapters) architecture. The project covers two domains — a product catalog and an order system — exposed via a RESTful HTTP API. The course begins with Go's standard library before introducing tools like Postgres, Kafka, Docker, sqlc, and dbmate in later stages. It enforces a strict dependency rule where source-code dependencies point inward across four layers: presentation, application, domain, and infrastructure. The course requires Go 1.22 or newer and is aimed at developers learning clean architecture, domain-driven design, and production backend patterns in Go.

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ProgrammingDEV Community ·

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