This repository explores various Design Patterns in Golang, categorized into Creational, Structural, and Behavioral patterns. These patterns help in object creation, structuring code efficiently, and improving object interaction.
Creational patterns focus on how objects are created, ensuring that the instantiation process is efficient, scalable, and maintainable.
✔ Ensures only one instance of a struct exists.
✔ Thread-safe, preventing race conditions in concurrent environments.
✔ Example use case: Database connections, configuration managers.
✔ Abstracts the object creation logic, improving maintainability and extensibility.
✔ Helps in creating different object types based on input parameters.
✔ Example use case: Loggers, payment gateways, and parsers.
Structural patterns focus on how objects and classes are composed, ensuring better code organization, flexibility, and reuse.
✔ Bridges incompatible interfaces, making integration seamless.
✔ Useful when modernizing old APIs for new systems.
✔ Example use case: Connecting legacy payment APIs with new transaction systems.
✔ Dynamically adds features to objects without modifying the original struct.
✔ Keeps the core logic clean and reusable.
✔ Example use case: Middleware in HTTP servers (logging, authentication, compression).
✔ Acts as a wrapper for another object to provide security, caching, or lazy loading.
✔ Reduces resource usage by controlling access to expensive operations.
✔ Example use case: Lazy database connections, API rate limiting, and security layers.
Behavioral patterns focus on how objects communicate and interact, making the system more flexible and loosely coupled.
✔ Dynamically switches between different algorithms or strategies at runtime.
✔ Promotes the Open/Closed Principle (adding new strategies without modifying existing code).
✔ Example use case: Sorting algorithms, payment processing (Card, UPI, PayPal).
✔ Implements event-driven systems, where multiple objects react to changes in one object.
✔ Useful when a one-to-many dependency exists between objects.
✔ Example use case: Stock market updates, messaging queues, notification systems.
✔ Encapsulates requests as objects, allowing easy execution, undo, and redo operations.
✔ Helps in implementing action queues, macros, and transaction rollbacks.
✔ Example use case: Undo/redo in text editors, remote controls, task scheduling.
- Read Golang Design Patterns Documentation 📖 here
- Explore real-world design pattern implementations in Go 🛠
Feel free to contribute by improving implementations or adding more patterns!
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