June 2017
Intermediate to advanced
360 pages
10h 2m
English
Content preview from Microservices with Azure
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Considerations
The following considerations should be taken into account while implementing this pattern:
- A common problem faced with this pattern is concurrency. If more than one event arrives concurrently and are processed by different event handlers, then optimistic locking should be used to ensure that the state is consistent. To implement optimistic locking, the following flow should be followed for handling a request. To understand the mechanism in detail let's consider a flight seat reservation scenario:
- The user interface raises a command to reserve two seats. A command handler handles the command raises the BookSeats event which gets loaded in the Event Queue and saved in Event Store.
- The seat availability aggregate is populated ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.