Composition over Inheritance in Go: The Design Choice That Makes Microservices Boring in the Best Way

May 21, 2026 · 8:38 AM UTC ·18 min read · 0 reactions · 0 comments · 32 views

#go #microservices #programming #software architecture

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The article discusses the design philosophy of Go programming language, emphasizing its preference for composition over classical inheritance. This approach leads to clearer and more maintainable code, particularly in complex systems like microservices. By prioritizing behavior over hierarchy, Go encourages developers to focus on the specific needs of their objects rather than fitting them into a rigid class structure.

Key facts

▪Go does not use classical inheritance, opting instead for structs, methods, and interfaces.
▪The language promotes a behavior-first model, which is beneficial for backend systems dealing with concurrency and integrations.
▪Inheritance can create hidden dependencies and complicate testing, while Go's composition makes relationships explicit.

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Canonical URL	https://dev.to/amirsefati/composition-over-inheritance-in-go-the-design-choice-that-makes-microservices-boring-in-the-best-2m0h
Publication time	Thu, 21 May 2026 08:38:35 +0000
Retrieval time	2026-05-21T08:51:10.385Z
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try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 161199) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } amir Posted on May 21 Composition over Inheritance in Go: The Design Choice That Makes Microservices Boring in the Best Way #backend #microservices #go #architecture When I first moved deeper into Go, the strange part was not the syntax. The syntax is intentionally small. The strange part was the absence of something I had seen in backend codebases for years: classical inheritance. No class. No extends. No abstract base class hierarchy. No implements keyword.

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