This is a small solution demonstrating the Publish/Subscribe pattern.

The API takes input of data, this data is transformed into a new string. This new string is then published to a set of subscribers. The subscribers display the transformed data in the console.

It's possible to implement new EventBus using a broker like RabbitMQ by implementing the IEventBus interface.

Visual Studio 22

.Net SDK 6.0.200

• ./src contains source code of the main project(s)
• ./test contains all testing project(s)

EventBus contains abstractions for EventBus implementations

EventBus.BasicEventBus is a simple EventBus implementation using C# and delegate

Inject the event bus in Program.cs

builder.Services.AddSingleton<IEventBus, BasicEventBus>();

Register some subscribers

var eventBus = app.Services.GetRequiredService<IEventBus>();
eventBus.Subscribe<SomeEvent>(new SomeEventHandler((string newJobDescription) => Console.WriteLine(newJobDescription)));

Make a Post to /WeatherForecast

This will publish the event to it's subscribers.