The benefits of event sourcing are as follows:

• Auditing accuracy: Auditing is a tiring and tedious task and there is often a risk of it being incomplete or incorrect. However, with the event-driven microservice architecture in place, audit logging becomes automatic as it is carried out with every event change in the model. This makes auditing 100% accurate.

• Easy temporal queries: With the event-driven microservice architecture, the history of all the event changes is maintained by the application itself. This makes implementing temporal queries simple.

• Simple reports: Generating a complex business report takes up a lot of time and energy. An event-driven microservices architecture makes the task of generating reports simple by providing all the historical data required.

Let’s now move on and take a look at an alternative pattern.