Chapter 5. Establishing Relationships
At this point, we might declare our MyStatus application a minimum viable product. Users can create accounts and post status updates, and those status updates can be viewed in their authors' timelines. And, of course, since we're storing the data in Cassandra, we don't need to worry about scaling up to millions of users or billions of status updates.
As our service grows, however, it would be nice for users to be able to view all their friends' status updates in one place. The first step of that, of course, would be to know who a user's friends are. So, we'll build a feature that allows one user to follow another.
We've already seen a good way to use Cassandra to model a specific type of relationship. Compound ...
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