Title here
Summary here
System Design
Design Pattern
Creational Patterns
- Factory
- An interface allows subclasses to alter the type of objects that will be created.
- Builder
- Use a single constructor to construct complex objects step by step.
- Singleton
- Ensure a class has only one instance and provide a global point of access to it.
Behavioral Patterns
- Strategy
- Define a family of algorithms, encapsulate each one, and make them interchangeable.
- Observer / PubSub
- Publisher updates to subscribers. Subscriber can subscribe to multiple publishers.
- Iterator
- Provide a way to access elements of an aggregate object sequentially without exposing its underlying representation.
Structural Patterns
- Adapter
- Convert the interface of a class into another interface clients expect.
- Facade
- Abstract lower-level details.