dependency-injection

What problem does it solve?

This Skill helps developers understand and implement effective Dependency Injection (DI) patterns in .NET, addressing common pitfalls and promoting robust, maintainable code.

Core Features & Use Cases

• Service Lifetimes: Explains Singleton, Scoped, and Transient lifetimes with clear examples.
• Keyed Services: Demonstrates .NET 8+ keyed services for strategy patterns.
• Decorator Pattern: Shows how to add cross-cutting concerns like logging.
• Convention Registration: Utilizes Scrutor for efficient assembly scanning.
• Anti-patterns: Highlights and provides solutions for common DI mistakes like service locator usage and capturing scoped services in singletons.
• Use Case: Resolve issues with DbContext lifetimes in a web API, implement a strategy pattern for different payment gateways, or refactor code to use constructor injection instead of service locator.

Quick Start

Use the dependency-injection skill to understand how to register a scoped service with the name 'IOrderService' and its implementation 'OrderService'.