So if you want to know more about this development approach, please type a few words in Google just like: "Domain Driven Design Implementation Approach". I don't want to talk a lot about this approach, and will focus on implementation details of domain driven approach, because there is a lot of theoretical information about this topic in internet.
and the whole application should probably work fine with minimum or no changes in inner layers (core domain). So we can change anything we want in future in any other parts of application like: repositories, databases, ORMs, UI, etc.
The most famous architecture for implementing DDD is Onion architecture, as shown in the image below: Application Core (domain models and domain services) where business logic lies in there, is not dependent on any data persistence tools or any technology, so we can say, that our application core domain is independent of the outside environment and external dependencies, so that lead us to (testable and agile architecture principles), because our application core business logic doesn't depend on other parts of the application like database, etc., so it can be easily tested and debugged in isolation, that’s so great.
#Domain driven design tutorial software#
We will look at the software design principles, frameworks and tools that we can use in the implementation effort. We will look at domain elements (building blocks) such as Entities, Value Objects, Aggregate Root Entity, Data Transfer Object (DTO), Services, and Repositories. “ Domain-Driven Design is an approach to software development that centers the development on programming a domain model that has a rich understanding of the processes and rules of a domain”. In this article on sample shopping tutorial application, we will focus on domain and domain logic, without worrying about data persistence. Domain Driven Design is a big topic, and in this article, we just want to have a glimpse of it and we want to focus on implementation details of domain driven design, and also we are going to write a simple shopping tutorial application, and our major goal will be keeping the application business logic safe in domain models (rich entities) and domain services. The term Domain-Driven Design (DDD) was coined by Eric Evans in his book in 2004. Martin.Īlso, for a brief overview of the solid principles, you can just type few words in Google like: "solid principles of object oriented design". It will be necessary that you know the basics of object oriented programming, domain driven design (DDD) approach, Microsoft ORM Entity Framework, unit testing, and solid principles of object oriented design, introduced by Robert C. I will introduce the Generic Repository and Unit of Work Pattern for data access layer, and then I will develop an ASP.NET web API application for registering customer orders and order items in clean, testable, and maintainable architecture, using Domain Driven Design (DDD) Implementation Approach. Reading this article will give you a proper understanding of implementing an ASP.NET Core Web-API application using Domain Driven Design Implementation Approach, Generic Repository and Unit of Work Pattern in ASP.NET Core 3.1 Web API and Entity Framework Core 5.0.
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