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Thinking of removing MediatR from your .NET application?

In this video, I show you how I built a custom domain event dispatcher to replace MediatR’s IPublisher.Publish functionality — without breaking my application layer.

You’ll learn:
How MediatR handles domain events under the hood
How to define IDomainEvent and IDomainEventHandler interfaces
Wiring up the dispatcher with EF Core and SaveChangesAsync
Using reflection and scoped DI to invoke handlers
Trade-offs (performance, type safety, complexity)

Whether you're building a Clean Architecture app or want more control over your CQRS stack — this guide will help you move away from third-party dependencies like MediatR.

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Chapters
0:00 How Domain Events Work
2:42 Creating IDomainEventHandler
4:37 Adding Handlers in DI
6:47 Creating DomainEventsDispatcher
13:51 Testing the Implementation