Hi Nicolas,

As mentioned here is some sample code:

Composer

[RuntimeLevel(MinLevel = RuntimeLevel.Run)]
public class AttributeRoutingComposer : IUserComposer
{
    public void Compose(Composition composition)
    {
        composition.Components().Insert<AttributeRoutingComponent>();
    }
}

Component

public class AttributeRoutingComponent : IComponent
{
    public AttributeRoutingComponent()
    {
        GlobalConfiguration.Configuration.MapHttpAttributeRoutes();
    }
    public void Initialize()
    {

    }

    public void Terminate()
    {

    }
}

Then you can have an API controller that looks like this:

public class MyApiController : UmbracoApiController
{
        [Route("/api/v1/feed/basic")]
        public object MyEndPoint()
        {
        }
}

This would then be accessible on the url /api/v1/feed/basic

Hope that helps :-)

Nik