Concurrent Data Processing in Elixir

Wrapping Up

Completing this chapter was not an easy challenge, so well done! Learning how to use GenServer correctly will open the doors to building highly concurrent and performant applications, without the complexity you’ve seen in other programming languages. GenServer is a versatile tool and you will reach for it often when doing work concurrently.

In this chapter, you learned about the most common callbacks used when implementing the GenServer behaviour. You saw how to use each callback, interact with the process while it’s still running, and use the process state. You can start processes at runtime using DynamicSupervisor, or build your own supervisor when needed. Finally, you saw how the Registry can make registering and managing even ...