Technical considerations

We made some opinionated choices on Thoth return types/

• The vavr Future is used for async call (java CompletionStage is not user-friendly).

• The akka stream Source is used for stream processing.

• The vavr Either is used to handle business errors. The idea is to have three channels:

  • it’s ok: Future(Right("Result"))
  • it’s an error: Future(Left("Bad request"))
  • it’s a failure: Future.failed(CrashedException("Crap!"))

• io.vavr.Tuple0 is used instead of void so everything can be an expression:

  Tuple0 sideEffect() {
      println("I have done a side effect");
      return Tuple.empty();
  }