But to combat this, you can leverage snapshots to give you a representation of your aggregates state at a point in time. You can then use this as a checkpoint and them only replay the events since the snapshot.
Once you understand how Event Sourcing works, the most common thought is: "What happens when you have a lot of Events? Won't it be inefficient to fetch every event from the EventStore and replay all of them to get to current state?". It might be. But to combat this, you can leverage snapshots to give you a representation of your aggregates state at a point in time. You can then use this as a checkpoint and them only replay the events since the snapshot.
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0:00 Intro 2:24 Snapshots 5:19 Code Implementation 5:39 Aggregate 7:05 Repository 9:31 Creating a Snapshot 10:18 Demo
#eventsourcing #cqrs #softwarearchitecture
If you're developing a HTTP API (what most would call REST) how does that fit along side a Task-Based UI and CQRS? How can you create a REST API with CQRS? For starters, resources don't need to map to Entities. Second, HTTP Methods don't need to map to CRUD.
Here are the 3 most common myths I constantly see about CQRS when it's explained in blog posts or videos. This video explains exactly what CQRS is, as well as what it is not.
It's often referenced alongside other patterns that can make it seem difficult and complicated. Is CQRS complicated? No. CQRS is simple.
.Net Core CQRS + MediatR | CQRS Pattern | Mediator Pattern. CQRS ve Mediator Pattern'i anlatarak küçük bir örnek yaptığımız bu videoda, bu kalıpların neden ve nasıl kullanıldıklarına dair açıklamalara yaparak bir proje geliştirdik. Mediator pattern'ini uygulayabilmek için ise MediatR isimli kütüphaneyi kullandık.
What is Event Sourcing? It's a way of storing data that is probably very different than what you're used to. I'll explain the differences and show event sourcing example that should clear up all the mystery around it.