Member-only story
Keyed DI is like having a Swiss Army knife for your dependencies — it gives you exactly what you need, when you need it.
Understanding Keyed Service Dependency Injection: Flexibility for Your App’s Unique Needs
Ever needed more flexibility from your dependency injection? Keyed services might just be the solution you’ve been looking for.
✨ Note: Non-members can read the full story here.
Imagine you’re working on a project with multiple services that each serve a slightly different purpose. You have a single interface but different implementations, depending on your application’s state, environment, or user. How do you inject the right service without hardcoding it and breaking dependency injection principles? Here’s where Keyed Service Dependency Injection (DI) comes in handy. By using keys to specify which implementation to inject, Keyed DI brings flexibility and customization that can make your app more versatile and maintainable.
If you’re not well-versed in Dependency Injection or looking to refresh your understanding, check out my ‘Mastering DI’ article at the link below.
1. What is Keyed Service Dependency Injection?
Keyed Service DI is a technique where services are registered and resolved based on a unique key. In a typical dependency injection setup, you might have multiple implementations of an interface. Keyed DI allows you to inject the appropriate implementation by referencing a key, making your code adaptable and reducing the need for conditional logic.
Why Use Keyed DI?
- Multiple Implementations: Keyed DI is perfect when you have various implementations of the same interface that you need to use in different scenarios.
- Simplified Code: With Keyed DI, you can avoid bloating your code…
