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saga pattern pros and cons

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Anjali Sharma answered on January 4, 2023 Popularity 1/10 Helpfulness 1/10

answer saga pattern pros and cons

saga pattern pros and cons

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Pros

Makes transaction management in a loosely coupled, message-driven environment possible.

Well-suited to transactions that have a small number of steps (4 -5).

Cons

Can be complex to manage, particularly if a transaction has a large number of steps and the environment is asynchronous.

Requires a good deal of programming, particularly to support rollback in an asynchronous, message-driven environment.

@Service
public class OrderStatusUpdateEventHandler {

    @Autowired
    private PurchaseOrderRepository repository;

    @Autowired
    private OrderStatusPublisher publisher;

    @Transactional
    public void updateOrder(final UUID id, Consumer<PurchaseOrder> consumer){
        this.repository
                .findById(id)
                .ifPresent(consumer.andThen(this::updateOrder));

    }

    private void updateOrder(PurchaseOrder purchaseOrder){
        if(Objects.isNull(purchaseOrder.getInventoryStatus()) || Objects.isNull(purchaseOrder.getPaymentStatus()))
            return;
        var isComplete = PaymentStatus.RESERVED.equals(purchaseOrder.getPaymentStatus()) && InventoryStatus.RESERVED.equals(purchaseOrder.getInventoryStatus());
        var orderStatus = isComplete ? OrderStatus.ORDER_COMPLETED : OrderStatus.ORDER_CANCELLED;
        purchaseOrder.setOrderStatus(orderStatus);
        if (!isComplete){
            this.publisher.raiseOrderEvent(purchaseOrder, orderStatus);
        }
    }

}

https://www.vinsguru.com/choreography-saga-pattern-with-spring-boot/

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: cons javascript saga

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Contributed on Jan 04 2023

Anjali Sharma

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saga pattern pros and cons

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