Node.js Design Patterns - Second Edition

Chapter 11. Messaging and Integration Patterns

If scalability is about splitting, systems integration is about rejoining. In the previous chapter, we learned how to distribute an apfunction is a simple iteration over all the connected clientsplication, fragmenting it across several machines. In order for it to work properly, all those pieces have to communicate in some way and, hence, they have to be integrated.

There are two main techniques to integrate a distributed application: one is to use a shared storage as a central coordinator and keeper of all the information, the other one is to use messages to disseminate data, events, and commands across the nodes of the system. This last option is what really makes the difference when scaling distributed ...