[Aeolos]

That's pretty much a C/C++ problem though. I don't think I've ever had to translate types in C# or F#.

[jowiar]

I was referring to that, with Scala, I like to avoid leaking the innards of a JSON serialization library in the code for an API client, instead returning domain objects. Whereas with, JS or Python, the initial approach is to sling around the blob of JSON.