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Fix typo in integration-event-based-microservice-communications.md #20617

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Fix typo in integration-event-based-microservice-communications.md #20617

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2 changes: 1 addition & 1 deletion ...service-net-applications/integration-event-based-microservice-communications.md
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Expand Up @@ -8,7 +8,7 @@ ms.date: 10/02/2018

As described earlier, when you use event-based communication, a microservice publishes an event when something notable happens, such as when it updates a business entity. Other microservices subscribe to those events. When a microservice receives an event, it can update its own business entities, which might lead to more events being published. This is the essence of the eventual consistency concept. This publish/subscribe system is usually performed by using an implementation of an event bus. The event bus can be designed as an interface with the API needed to subscribe and unsubscribe to events and to publish events. It can also have one or more implementations based on any inter-process or messaging communication, such as a messaging queue or a service bus that supports asynchronous communication and a publish/subscribe model.

You can use events to implement business transactions that span multiple services, which gives you eventual consistency between those services. An eventually consistent transaction consists of a series of distributed actions. At each action, the microservice updates a business entity and publishes an event that triggers the next action. Figure 6-18 below, shows a PriceUpdated event published through and event bus, so the price update is propagated to the Basket and other microservices.
You can use events to implement business transactions that span multiple services, which gives you eventual consistency between those services. An eventually consistent transaction consists of a series of distributed actions. At each action, the microservice updates a business entity and publishes an event that triggers the next action. Figure 6-18 below, shows a PriceUpdated event published through an event bus, so the price update is propagated to the Basket and other microservices.

![Diagram of asynchronous event-driven communication with an event bus.](./media/integration-event-based-microservice-communications/event-driven-communication.png)

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