RU EN

MediatR with .NET 6.0

Автор:
HungryWolf
Источник:
Просмотров:
5026
MediatR with .NET 6.0 favorites 0

What is MediatR? Why do we need it? And How to use it?

Mediator Pattern - The mediator pattern ensures that objects do not interact directly instead of through a mediator. It reduces coupling between objects which makes it easy to maintain the code. Mediator pattern unified the service interfaces around a common design, one request in, one response out.

MediatR is a simple, unambitious mediator implementation in .NET.

Let’s now dive deeper into the working of a simple web API with MediatR. Complete code for the same can be found here.

1. Create a new web API project.

OpenAPI support makes it easy to test the API.

2. Create a folder with these three classes.


Solution Hierarchy

2.1 ApiRequestModel: This class represents a request for API.


ApiRequestModel

IRequest<> It represents a request with a response.

2.2 ApiResponseModel : This class represents a response of API.


ApiResponseModel

2.3 ApiHandler: And this class keeps the logical part.


ApiResponseModel

IRequesthandler<> binds request and response with handler class. The logic of API is kept in the Handle method.

3. Now let’s check the controller. I wrote a base controller that would be inherited by other controllers.


ApiControllerBase

ISender is responsible for communication between different mediator-linked objects. It sends a request through a mediator pipeline to be handled by a single handler.

In this code, HomeController is inheriting the base controller. ApiController communicates with ApiHandler based on ApiRequestModel and ApiResponseModel pair.


ApiController

You can test this API using swagger (OpenAPI).

From the above example, you can see a separation of request, response, logic, and communication using MediatR. And if you want to move to CQRS (Command and Query Responsibility Segregation) pattern, the mediator makes the transition seamless.

Похожее
Jan 10, 2024
Author: MESCIUS inc.
In today’s connected world, data is piling up very fast. We are generating more data than ever in human history, and a lot of this data is getting stored in non-relational formats like JSON documents. JSON has become a ubiquitous...
Jun 7, 2024
Author: Dev Leader
In software engineering, composition plays an important role in object-oriented programming. If you’ve come across other articles or videos I’ve put out about object-oriented programming, you’ll know that I try to push composition over inheritance as much as I can....
Aug 11, 2021
Author: Mel Grubb
Code Generation Code generation is a great way to apply patterns consistently across a solution or to create multiple similar classes based on some outside input file, or even other classes in the same solution. The tooling has changed over...
Jan 9, 2024
Author: Juan España
Content index Understanding HttpClientHandler and its importance in C# What is HttpClientHandler in C# Significance of HttpClientHandler in .NET applications Delve deeper into HttpClient C# How to use HttpClient C# C# HttpClient example for beginners Role of System.Net.Http.HttpClient in network...
Написать сообщение
Тип
Почта
Имя
*Сообщение