ASP.NET Core provides better support for clean, testable, maintainable architectures than any of its predecessors. Learn the underlying principles that apply to project/solution organization, how best to arrange your projects to support clean code, and how to refactor existing solutions toward this architecture. Examples will use ASP.NET Core but the principles covered apply to all languages and platforms.  

Full ASP.NET Core 2.2 application with DDD, CQRS and Event Sourcing  

Technologies implemented:

• ASP.NET Core 2.2 (with .NET Core 2.2)
• ASP.NET MVC Core
• ASP.NET WebApi Core
• ASP.NET Identity Core
• Entity Framework Core 2.2
• .NET Core Native DI
• AutoMapper
• FluentValidator
• MediatR
• Swagger UI 

Architecture:

• Full architecture with responsibility separation concerns, SOLID and Clean Code
• Domain Driven Design (Layers and Domain Model Pattern)
• Domain Events
• Domain Notification
• CQRS (Imediate Consistency)
• Event Sourcing
• Unit of Work
• Repository and Generic Repository 

Northwind Traders is a sample application built using ASP.NET Core and Entity Framework Core. The architecture and design of the project is explained in the video:

Biarity/Sieve: ⚗️ Clean & extensible Sorting, Filtering, and Pagination for ASP.NET Core 

• Performance improvements in the core debugger
• Support for  .NET 6 , which can be used to build web, client and mobile apps by both Windows and Mac developers, as well as improved support for developing Azure apps
• An update UI meant to reduce complexity and which will add integration with Accessibility Insights. Microsoft plans to update the icons and add support for  Cascadia Code , a new fixed-width font for better readability
• Support for C++ 20 tooling. language standardization and Intellisense
• Integration of text chat into the  Live Share  collaboration feature
• Additional support for Git and GitHub
• Improved code search  

The current plan is that C# 8.0 will ship at the same time as .NET Core 3.0. However, the features will start to come alive with the previews of Visual Studio 2019 that we are working on.  

Get Started Building Microservices with ASP.NET Core and Docker in Visual Studio Code 

Clean Code concepts adapted for .NET / .NET Core 👍 

Clean Architecture with ASP.NET Core 2.2 - Jason Taylor