Golang — Command Pattern

The “Command Pattern” is one of the design patterns introduced by the “Gang of Four”. This pattern is used to encapsulate the request as an object and allows you to parameterize clients with different requests, queue or log requests, and support undoable operations. In this article, we will discuss the implementation of the “Command Pattern” in Golang.

Introduction

The “Command Pattern” is a behavioral design pattern that allows you to encapsulate a request as an object, thereby letting you parameterize clients with different requests, queue or log requests, and support undoable operations. The pattern is used to decouple the sender of a request from its receiver, giving more flexibility to the system.

The “Command Pattern” consists of the following components:

• Command: an interface that defines the execution method.
• ConcreteCommand: a struct that implements the Command interface and contains a receiver object.
• Invoker: a struct that triggers the execution of the command.
• Receiver: a struct that receives the request and performs the action.

How it works

The “Command Pattern” is a powerful design pattern that can be used to implement a variety of functionalities in Golang. It…