Breaking News: Grepper is joining You.com. Read the official announcement!

How messaging works in microservices

Deepika Sahu answered on December 15, 2022 Popularity 6/10 Helpfulness 1/10

answer How messaging works in microservices

related How messaging works in microservices

How messaging works in microservices

Comment

public class OrderService {

  ...

  public Order createOrder(long consumerId, long restaurantId,
                           List<MenuItemIdAndQuantity> lineItems) {
    Restaurant restaurant = restaurantRepository.findById(restaurantId)
            .orElseThrow(() -> new RestaurantNotFoundException(restaurantId));

    List<OrderLineItem> orderLineItems = makeOrderLineItems(lineItems, restaurant);

    ResultWithDomainEvents<Order, OrderDomainEvent> orderAndEvents =
            Order.createOrder(consumerId, restaurant, orderLineItems);

    Order order = orderAndEvents.result;
    orderRepository.save(order);

    orderAggregateEventPublisher.publish(order, orderAndEvents.events);

    OrderDetails orderDetails = new OrderDetails(consumerId, restaurantId, orderLineItems, order.getOrderTotal());

    CreateOrderSagaState data = new CreateOrderSagaState(order.getId(), orderDetails);
    createOrderSagaManager.create(data, Order.class, order.getId());

    meterRegistry.ifPresent(mr -> mr.counter("placed_orders").increment());

    return order;
  }

Popularity 6/10 Helpfulness 1/10 Language whatever

Source: microservices.io

Tags: messaging microservices whatever

Link to this answer
Share Copy Link

Contributed on Dec 15 2022

Deepika Sahu

0 Answers Avg Quality 2/10

Closely Related Answers

How messaging works in microservices

Comment

There are two basic messaging patterns that microservices can use to communicate with other microservices.
Synchronous communication. In this pattern, a service calls an API that another service exposes, using a protocol such as HTTP or gRPC. ...
Asynchronous message passing.

Popularity 6/10 Helpfulness 2/10 Language whatever

Source: Grepper

Tags: microservices whatever messaging w

Link to this answer
Share Copy Link

Contributed on Dec 15 2022

Deepika Sahu

0 Answers Avg Quality 2/10

How messaging works in microservices

Contents

More Related Answers

How messaging works in microservices

Closely Related Answers

How messaging works in microservices

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.