Hands-On Software Engineering with Golang

Single responsibility

The single responsibility principle (SRP) was described by Robert Martin ^[23], a seasoned software engineer who offers, under the nickname of Uncle Bob, advice about best practices for software development. The SRP states the following:

"In any well-designed system, objects should only have a single responsibility."

In a nutshell, object implementations should focus on doing one thing well, and in an efficient way. To understand how this principle works, let's examine a piece of code that violates it. In the following imaginary scenario, we are working for the ACME drone company where we are using Go to build a drone-based goods delivery system.

The following code excerpt illustrates one of our initial attempts at ...