October 2018
Intermediate to advanced
556 pages
15h 18m
English
Content preview from Hands-On Reactive Programming in Spring 5
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Event sourcing
To handle events flowing through the microservice application, microservices may use the event sourcing pattern. Event sourcing persists the state of a business entity as a sequence of state-changing events. For example, a bank account may be represented as an initial amount of money and a sequence of deposit/withdraw operations. Having this information not only allows us to calculate the current account state by replaying update events, it also gives a reliable audit log of the entity changes and allows queries to determine the state of an entity at any point in the past. Usually, services that implement event sourcing provide APIs that allow other services to subscribe to entities updates.
To optimize the time required to ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.