.NET Dependency Injection Patterns FAQs

Question 1

Can I use these patterns with Akka.NET or background services?

Accepted Answer

Yes, the skill includes specific implementation patterns for Akka.Hosting and BackgroundService, demonstrating how to manually create and manage service scopes for unit-of-work processing.

Question 2

How does this skill help prevent DI runtime errors?

Accepted Answer

The skill identifies and provides solutions for common anti-patterns, such as 'captive dependencies' where a singleton service incorrectly captures a scoped service, and missing scopes in background tasks.

Question 3

Why should I use extension methods for DI registrations?

Accepted Answer

Using extension methods keeps your Program.cs file clean and readable, improves code discoverability by grouping related logic, and makes service registrations reusable across different environments like production and integration tests.

Question 4

How should I name my DI extension methods?

Accepted Answer

The skill recommends consistent naming conventions such as 'Add{Feature}Services' for general registration, 'Configure{Feature}' for settings, and 'Use{Feature}' for middleware on IApplicationBuilder.

Question 5

Does this support the .NET Options pattern?

Accepted Answer

Absolutely. It provides examples of how to bind configurations, use data annotations for validation, and ensure settings are validated on startup within your DI extension methods.

.NET Dependency Injection Patterns

.NET Dependency Injection Patterns

Key Features

Use Cases

Key Features

Use Cases