Scala recover or recoverWith

Question

We are developing some systems in our company in Scala and we have some doubts. We were discussing about how to map the future exceptions and we don\'t know when we should u

Answer 1

Using recoverWith you are asked to return a wrapped future, using recover you are asked to throw an exception.

.recoverWith # => Future.failed(t)
.recover # => throw t

I prefer using recoverWith because I think functional programming prefers returning objects than throwing exceptions which is less of a functional style, even if it's internal code block, I think it still holds..

However if I have an internal piece of code in the recovery block which might throw an exception then, in that case, rather than catching it and wrapping it with Future, or Trying it, I might as well just run this piece of code in combination with recover and it would handle the exception wrapping for you, which would make the code more readable and compact.