I was a Java web programmer. IMHO, GenServer processes are somewhat like “service objects” or “controller objects” or simply Servlet objects (I don’t know much about the C# ecosystem, sorry). These objects share the same properties:
- Effectively singleton
- Has an infinite lifespan
- Stateless
Well, GenServers don’t have to be stateless, but if it can be stateless, then you might be better just use a simple module with a bunch of pure functions in it (maybe not that pure if you need to access a database).
I personally believe that those Java objects mentioned above do not even have to be objects. Classes with only a bunch of static methods should work fine, too. The only reason that those objects are objects is for the purpose of mocking in testing.
