MediatrSamples

Samples of Mediatr v4 usage. In order to know what Mediatr is please visit https://github.com/jbogard/MediatR

This solution contains two projects:

• An Asp.Net Core MVC website, that has a concrete action in a controller that is going to use Mediatr.

  Controller: HomeController

  Action: Index

  So to start the interaction with Mediatr please invoke /home/index

• A library that exposes commands, responses, handlers and events.

Once the action is invoked, different interactions with Mediatr will happend:

1. A command, handled by an asynchronous handler, is sent. Response is received
2. A command defined with no response is handled by an asynchronous handler
3. A command, handled by an asynchronous handler with no cancellation token, is sent. Response is received
4. Several handlers are defined for same command. Just one of them is executed.
5. A command is send and then handled by an synchronous handler. Response is received
6. An event is sent and is managed by 2 listeners
7. An event is sent and is managed by 2 different listeners: one with no cancellation token and another one thar works in a synchronous way
8. A listener that will handle all sorts of events is defined

In addition, there are some examples os pipeline behaviours usage. They are in following files:

• 9_APipelineBehaviour.cs

  Here we can found 2 different behaviours that allow us to inject code before a command is handled and after it is handled

  In order to see them working please uncomment logs inside the file

  In addition we also try to define a specialized behaviour (for just one concrete command). Unfortunatelly this is not working

• 9_bis_PostProcessor

  Here we can found a postprocessor that allow us to inject code that will be executed after a command is handled

  In order to see them working please uncomment logs inside the file

Behaviours are defined in asp.net core startup class