/// <summary>
/// Save order to database and call vendor api to place order
/// </summary>
/// <param name="orders"></param>
/// <returns>returns true if vendor accepts the order successfully</returns>
public Order SaveOrder(List <Order> orders)
{
//save order to database
var order = orders.FirstOrDefault();
int vendorType = order.OrderDetails.FirstOrDefault().VendorId;
_orderRepository.Insert(order);
_orderRepository.Save();
//call external api to place order
var vendorToCall = _vendorFactory.CreateVendor(vendorType);
vendorToCall.PlaceOrder();
//call loger
_loggingHelper.LogOrderInformation(order);
return(order);
}