Advanced DotNet Certification Training

Dependency Injection (DI) in Advanced DotNet is a design pattern that allows classes to receive their dependencies from an external source rather than creating them internally.
It helps in:
🔹 Improving code reusability and testability
🔹 Reducing tight coupling between components
Example:
public class HomeController
{
private readonly IProductService _service;
public HomeController(IProductService service)
{
_service = service;
}
}

Here, IProductService is injected into HomeController through the constructor.

Middleware are components in the request processing pipeline that handle requests and responses. Each middleware can perform actions before and after calling the next component.
Example:
app.Use(async (context, next) =>
{
// custom logic before next middleware
await next.Invoke();
// custom logic after next middleware
});

• Thread: Represents an actual OS thread; manually managed.
• Task: A higher-level abstraction used for asynchronous programming that uses threads internally but offers easier control, cancellation, and continuation support.

• Uses lazy loading and change tracking for efficient data access.
• Supports compiled queries for faster execution.
• Enables asynchronous database operations to enhance scalability.
• Simplifies data mapping with LINQ queries instead of manual SQL.

Microservices are small, independent services that communicate via APIs.
In .NET Core, they can be implemented using:
1.ASP.NET Core Web APIs
2.Docker containers
3.gRPC or REST communication
4.Azure Service Bus or RabbitMQ for message handling
5.They help in achieving scalability, modularity, and independent deployment.