Managing cascade delete with AutoMapper

In this recipe, we will leverage our AutoMapper setup to implement the deletion of EventRegistration and its dependent entity, AdditionalContact. This ensures that when EventRegistration is deleted, its related AdditionalContact information is also handled.

Getting ready

The starting code for this project is found here: https://github.com/PacktPublishing/ASP.NET-9-Web-API-Cookbook/tree/main/start/chapter02/CascadeDelete. This recipe picks up where the preceding recipe ended.

How to do it…

1. Add the DELETE endpoint to your controller. In your EFEventsController, let’s get started by adding the following attributes for a new DELETE endpoint:

   [HttpDelete("{id}")]
   [EndpointSummary("Delete an existing event registration")]
   [EndpointDescription("DELETE to remove an existing event registration.")]
   [ProducesResponseType(StatusCodes.Status200OK)]
   [ProducesResponseType(StatusCodes.Status404NotFound...