I am building a new ASP.NET Core 5 MVC app. I want to use clean architecture as outlined in Microsoft's web app architecture ebook.
I am also studying eShopOnWeb sample application available here :
https://github.com/dotnet-architecture/eShopOnWeb
What I understand from the ebook and sample app is - EF Core entity classes (say Customer, Product, Order) will go inside ApplicationCore project's Entities folder. The DbContext will be in Infrastructure project.
My confusion is: is it alright to add data annotation schema attributes such as [Table], [DatabaseGenerated], and [Key] on these entity classes inside ApplicationCore project? If not, where should I add these data annotations?
Any advice in this regards is highly appreciated.
Thank you.
In the example of eShopOnWeb they separate Entities and configuration models. So, that means to have clean architecture you don't need annotations directly in these Entities.
You can use FluentAPI, as they used as well in the Infrastructure/Data/Config directory.
So, if you have a separate project for DataContext that is the best location for describing your entities with FluentAPI in this case.
More information about FluentAPI: https://docs.microsoft.com/en-us/ef/ef6/modeling/code-first/fluent/types-and-properties