David Schalk

The acid-state example in The Happstack Book and some of the acid-state repository examples don't compile with GHC-7.8.3. The error messages say coercion is impossible because Data.SafeCopy.SafeCopy.Kind is nominal while...

Thanks. This works for me too.

I arrived here a few clicks after searching Google for "Is there an example of a 'secure" wss 'haskell' websockets 'server' ". Previous searches got me lots of glib comments...

As I explain in my repos, I use the word "monad" very loosely, sometimes writing "ersatz monad" and other times pointing out that Haskell monads aren't category theory monads either....

As you probably discovered, "runIOE" was still present in the final version mongoDB 1 (the "1" series ended with version "1.5"), but was gone in version "2.0" and hasn't reappeared....