Isolation

In Chapter 5, Reactive Manifesto, we observed the importance of being message-driven for being resilient. Let's consider a simple real-life scenario while building applications and let's understand the role of messages.

Let's assume we are building an image-sharing social networking site (such as Instagram). Users would upload pictures from their mobile phones and share them with their friends and followers. A simplified view would be as follows:

Of course, there would be many other background services, but let's consider a cropped-down version for simplicity.

Once the user shares a picture on his mobile app, the following steps ...

Get Scala Microservices now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.