Eric Evans in the book DDD: Tackling Complexity in the Heart of Software presents a model characteristic for Domain Driven Design, which consists of layers: User Interface, Application, Domain and …
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Designing a domain model with as few relationships as possible prevents the code from being complicated and difficult to maintain. On most large systems, relationships between entities cannot be avoided. …
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Many objects do not have their own identity. An example are windows with the same dimensions and the same way of opening and fixing, which do not differ from each …
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Many things are defined by their identity (uniqueness) and not by their attributes. A very good example is a man with features that can change or disappear completely throughout his …
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Bounded context In large applications, there are many models without clearly defined dependencies. As the system develops, the boundaries between models blur and the links between objects become unclear. For …
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The ubiquitous language is used to find an agreement between people who know the technological vocabulary and those who do not use it. Thanks to this, we can create a …
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This post will be the beginning of the description of the DDD approach to designing systems, based on the assumptions of the book Domain-Driven Design: Tackling Complexity in the Heart …
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How to communicate between components We distinguish several ways of communication between components: parent to child, child to parent and any to any. In this post I will show an …
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Resolver Resolvers is used to provide data, before activating route, in brief, force the application to show the view only after loading the data. For easier understanding I will show …
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In the previous post I showed how to manage a token in an angular application. Now I show you how you can use the Auth Guard mechanism so that you …
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In the previous post, I showed you how to create a token in ASP.NET Core. Now I will show you how you can use it in a project that uses …
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How to create token in ASP.NET Core In this post I will demonstrate how to create a authentication token in an ASP.NET Core Web Api application.
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What is CQRS? Let’s start with what is CQS (Command Query Separation) because CQRS (Command Query Responsibility Separation) are derived from it. CQS (Command Query Separation) This approach says that …
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Imagine that you have ten or hundred class in your repository. And now you need to register each of them.
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If you want to log every action execution in the ASP.NET MVC application. Instead of adding unnecessary logic ( to logging ) in each action. We can override method OnActionExecuting …
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How to make pivot in MS SQL? In the table with cars model and model year we have the following data. And I’d like to create a pivot with the …
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It’s always nice to have logs from our applications. Nlog is a solid open-source library in .NET that supports save the logs. However, when we add elasticsearch to it, searching …
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In ASP.NET Core using a Entity Framework Core we only have the option to connect with a database by aproach code first. Edmx and Dbml will not be supported anymore. …
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Sometimes when we use message broker we will want to wait for a response (like in RPC mechanism) – instead of relying on the publish or subscribe (which i present …
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Generate XML with LINQ. I show you how you can create xml file in a readable and simple way by using LINQ. At first I using the object XElement to …
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