Exploring the Singleton Pattern in Go

Discover the power of the Singleton pattern in Go as we look into its applications and advantages.

Francesco Pastore
7 min readFeb 25, 2024

The Singleton pattern is a core concept in software engineering. In Go, its implementation provides efficient ways to improve your codebase and eliminate redundancy.

In this article, we’ll take a closer look at the singleton pattern in Go, examining its principles and practical applications.

Photo by Ralph Hutter on Unsplash


  1. What is a Singleton?
  2. A standard implementation in Go
  3. Additional improvements
  4. The final code

❓ What is a Singleton?

A Singleton is a design pattern used in software engineering to ensure that a class has only one instance and provides a global point of access to that instance.

This pattern is commonly used when exactly one object is needed across the system, such as a logger, database connection, or configuration settings.

Using a single instance instead of repeatedly recreating the same one can improve the system's performance overall and prevent inefficiencies.

Common examples



Francesco Pastore

An engineering student in Milan and a web developer for an IT company. Write about programming and cybersecurity topics.