Chapter 4. Structural Patterns - Proxy, Facade, Decorator, and Flyweight Design Patterns
With this chapter, we will finish with the Structural patterns. We have left some of the most complex ones till the end so that you get more used to the mechanics of design patterns, and the features of Go language.
In this chapter, we will work at writing a cache to access a database, a library to gather weather data, a server with runtime middleware, and discuss a way to save memory by saving shareable states between the types values.
Proxy design pattern
We'll start the final chapter on structural patterns with the Proxy pattern. It's a simple pattern that provides interesting features and possibilities with very little effort.
The Proxy pattern ...