ApiGroupUsage.cs

public class SomeApiGroup : IEndpointsGroup<SomeApiGroup.Dependencies>
{
	public record Dependencies(
      ILogger Logger, 
      ProductsApplicationService service);
  
  internal static RouteGroupBuilder MapEndpoints(this WebApplication app)
    {
        var group = app.MapGroup("/products");

        group.MapGet("/{publicId}", (Guid publicId, SomeApiGroup.Dependencies dependencies) =>
        {
            return Ok(new TestResponse(dependencies.service.Something()));
        });
    }
}