Added entry

Author: linkdotnet

MediatorPattern/Command/DeleteAllUsersCommandHandler.cs

@@ -3,6 +3,8 @@
 
 namespace MediatorPattern.Command;
 
+// We have to return Unit because "void" is not a valid return type
+// With that MediatR can have a uniform and easy API
 public class DeleteAllUsersCommandHandler : IRequestHandler<DeleteAllUsersCommand, Unit>
 {
     private readonly UserRepository _userRepository;

MediatorPattern/Program.cs

@@ -21,8 +21,15 @@
 ServiceProvider CreateServiceProvider()
 {
     var collection = new ServiceCollection();
+    // This will execute our main logic
     collection.AddScoped<Execution>();
+    
+    // This comes from the MediatR package.
+    // It looks for all commands, queries and handlers and registers
+    // them in the container
     collection.AddMediatR(typeof(Program).Assembly);
+    
+    // Our repository
     collection.AddScoped<UserRepository>();
     return collection.BuildServiceProvider();
 }

MediatorPattern/README.md

@@ -0,0 +1,8 @@
+# Mediator Pattern - CQRS with MediatR
+
+The famous mediator pattern. Used so often especially in combination with **CQRS**.
+
+In this article I will show how the mediator pattern itself works, what **CQRS** is and its advantages.
+For that we will write a small application, which demonstrates how to use the pattern and what we gain from using it.
+
+Found [here](https://steven-giesel.com/blogPost/064ca62a-b384-45da-9212-4c3840e5ba9c)

README.md

@@ -4,6 +4,7 @@ Contains all of my examples from various blog posts. You can find a comprehensiv
 
 | BlogPost                                                                                 | Publish Date |
 | ---------------------------------------------------------------------------------------- | ------------ |
+| [Mediator Pattern - CQRS with MediatR](MediatorPattern/)                                 | 06.08.2022   |
 | [Logging Source Code Generators](LoggingSourceCodeGenerator/)                            | 27.07.2022   | 
 | [Blazor Client - Loading Screen](BlazorClientLoadingScreen/)                             | 12.07.2022   |
 | [Central nuget store for your UNO Platform App](UnoDirectoryBuildProps/)                 | 23.06.2022   |