Golang Shines

Apr 19, 2026 · Backend Development

Mastering Go Modules and Packages: A Complete Guide

This article explains Go's built‑in, custom, and third‑party packages, introduces the go mod tool with init and other commands, shows how to create and import custom packages (including aliasing and anonymous imports), describes the init() function execution order, and covers using third‑party modules and essential Go commands such as build, install, get, doc, test, list and fix.