Clean Domain-driven Design article - CartController.cs

CartController.cs

[ApiController]
[ApiVersion("1.0")]
[Route("api/carts")]
public class CartController : Controller
{
  [HttpGet]
  [Route("{id}")]
  [Auth(Policy = "access_cart_api")]
  public async Task<IActionResult> Get([FromServices] IMediator eventor, Guid id, CancellationToken cancellationToken)
  {
    return await eventor.SendStream<GetCartRequest, GetCartResponse>(
      new GetCartRequest { CartId = id },
      x => x.Result,
      cancellationToken);
  }

  [HttpPost]
  [Auth(Policy = "access_cart_api")]
  public async Task<IActionResult> Create([FromServices] IMediator eventor, InsertItemToNewCartRequest request, CancellationToken cancellationToken) =>
    await eventor.SendStream<InsertItemToNewCartRequest, InsertItemToNewCartResponse>(
      request,
      x => x.Result,
      cancellationToken);

  [HttpPut]
  [Auth(Policy = "access_cart_api")]
  public async Task<IActionResult> Put([FromServices] IMediator eventor, UpdateItemInCartRequest request, CancellationToken cancellationToken) =>
    await eventor.SendStream<UpdateItemInCartRequest, UpdateItemInCartResponse>(
      request,
      x => x.Result,
      cancellationToken);

  [HttpDelete]
  [Route("{cartId:guid}/items/{productId:guid}")]
  [Auth(Policy = "access_cart_api")]
  public async Task<IActionResult> RemoveItemInCart([FromServices] IMediator eventor, Guid cartId, Guid productId, CancellationToken cancellationToken)
  {
    return await eventor.SendStream<DeleteItemRequest, DeleteItemResponse>(
      new DeleteItemRequest { CartId = cartId, ProductId = productId },
      x => x.ProductId,
      cancellationToken);
  }

  [HttpPut]
  [Route("{cartId:guid}/checkout")]
  [Auth(Policy = "access_cart_api")]
  public async Task<IActionResult> CheckoutCart([FromServices] IMediator eventor, Guid cartId, CancellationToken cancellationToken)
  {
    return await eventor.SendStream<CheckoutRequest, CheckoutResponse>(
      new CheckoutRequest { CartId = cartId },
      x => x.IsSucceed,
      cancellationToken);
  }
}