TestController.cs

    [Route("api/[controller]")]
    [ApiController]
    public class TestController : ControllerBase
    {
        private readonly SenderFactory _senderFactory;

        public TestController(SenderFactory senderFactory)
        {
            _senderFactory = senderFactory;
        }

        [HttpGet()]
        public async Task<IActionResult> SendMessage(string senderType)
        {
            var sender = _senderFactory(senderType);

            await sender.Send("Hi! Autofac is nice!");

            return Ok();
        }
    }