Converting an IO String to a Response

[deech]

Hi all,
How do I return an IO String on a POST request? Currently I have:

appHandler = dir "testIO" returnString

returnString = methodM POST >>
return $ toResponse $ ioString "hello world"

ioString :: String -> IO String
ioString s = return s

And I get an error saying that an IO String cannot be converted to a
Response. How do I get this to work?

thanks ...
-deech

[Jake McArthur]

deech wrote:
> returnString = methodM POST >>
> return $ toResponse $ ioString "hello world"
>
> ioString :: String -> IO String
> ioString s = return s
>
> And I get an error saying that an IO String cannot be converted to a
> Response. How do I get this to work?

You can't convert an IO String to a Response, but you *can* convert a
(String -> Response) to a (IO String -> IO Response):

returnString = methodM POST >>
liftIO $ toResponse <$> ioString "hello world"

- Jake