Jakarta RESTful Web Services

@Path("/orders")
@RequestScoped
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public class OrderResource {
    @Inject PlaceOrderUseCase placeOrder;

    @POST
    public Response place(@Valid PlaceOrderRequest request) {
        OrderId id = placeOrder.place(request.toCommand());
        return Response.created(URI.create("/orders/" + id.value()))
                .entity(new OrderResponse(id.value(), "ACCEPTED"))
                .build();
    }
}

@Provider
public class DomainExceptionMapper implements ExceptionMapper<DomainRuleViolation> {
    public Response toResponse(DomainRuleViolation ex) {
        return Response.status(422).entity(Map.of("error", ex.getMessage())).build();
    }
}