All PatternsStructural
Decorator
Attaches additional responsibilities to objects dynamically.
HTTP middlewareStream wrappersLogging decorators
Understanding Decorator
The Decorator pattern attaches additional responsibilities to objects dynamically. It provides a flexible alternative to subclassing for extending functionality, commonly used in middleware chains.
How It Works
BaseHandler
Handle()
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Base Component
Start with a base component that has core functionality.
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Basic Implementation
Coffee shop with customizable add-ons:
main.go
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Real-World Example: HTTP Middleware
Request handling with authentication and logging decorators:
main.go
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