Construct complex objects step-by-step with clean, readable code. The Builder pattern eliminates constructor overloads and makes object creation intuitive and maintainable.
React to changes without tight coupling. The Observer pattern lets multiple parts of your system respond to events independently, keeping your code clean and extensible.
Integrate third-party SDKs without coupling your code to their quirks. The Adapter pattern translates external interfaces into ones your application controls.
Tame complex subsystems by hiding coordination logic behind a simple interface. The Facade pattern keeps controllers thin and business workflows centralized.
Replace growing if-else chains with clean, swappable algorithms. The Strategy pattern makes pricing rules, discounts, and business logic easier to test and extend.
Add logging, caching, or retry logic without touching your core classes. The Decorator pattern wraps behavior around existing code while keeping everything testable.
A practical guide to Dependency Injection and Inversion of Control in C#. Covers constructor injection, composition roots, lifetimes, containers, testing, and when DI is overkill.
The last of the SOLID Principles to cover is the letter D which is the Dependency Inversion Principle (DIP).
What is the Dependency Inversion Principle (DIP)? The Dependency Inversion Principle (DIP) states that “Depend on abstraction, not on concretions".
The fourth of the SOLID Principles to cover is the letter I which is the Interface Segregation Principle (ISP).
What is the Interface Segregation Principle (ISP)? The Interface Segregation Principle (ISP) states that “Clients should not be forced to depend upon interfaces that they do not use".
The third of the SOLID Principles to cover is the letter L which is the Liskov Substitution Principle (LSP).
What is the Liskov Substitution Principle (LSP)? The Liskov Substitution Principle (LSP) states that “Derived classes must be substitutable for their base classes".