Accessing value returned by scala futures
future, scala
Solution
The case of Success(listInt) => I want to return the listInt and I am not able to figure out how to do that.
The best practice is that you don't return the value. Instead you just pass the future (or a version transformed with `map`, `flatMap`, etc.) to everyone who needs this value and they can add their own `onComplete`.
If you really need to return it (e.g. when implementing a legacy method), then the only thing you can do is to block (e.g. with `Await.result`) and you need to decide how long to await.
Problem
I am a newbie to scala futures and I have a doubt regarding the return value of scala futures. So, generally syntax for a scala future is ``` def downloadPage(url: URL) = Future[List[Int]] { } ``` I want to know how to access the `List[Int]` from some other method which calls this method. In other words, ``` val result = downloadPage("localhost") ``` then what should be the approach to get `List[Int]` out of the future ? I have tried using map method but not able to do this successfully.`