[Haskell-beginners] Combining IO and Either function to "EitherT e IO a"

[Nathan Hüsken]

Hey,

I have a function

|func1 :: IO String
|

and another:

|func2 :: String -> Either String String
|

and I want to combine them, giving the output of the first as the input
as the second.

|func3 :: IO (Either String String)
func3 = do
  tmp <- func1
  return (func2 tmp)
|

Ok, possible. But I rather would like a result of type "EitherT String
IO String".
So how can I combine these function in a smart way, to get the needed
result?

Thanks!
Nathan

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