public async Task <IActionResult> GetOrders(string clientId)
{
var getClientExpr =
from clientResult in RestaurantDomainEx.GetClient(clientId)
select clientResult;
var client1 = await _interpreter.Interpret(getClientExpr, Unit.Default);
var getOrdersExpr =
from ordersResult in RestaurantDomain.GetOrders(client1.Client.Id)
select ordersResult;
var orders = await _interpreter.Interpret(getOrdersExpr, Unit.Default);
return(orders.Match(
found => (IActionResult)Ok(found.Orders),
notFound => NotFound()));
}