[Haskell-beginners] How to write the FromJSON instance for CUid

[David McBride]

Didn't even occur to me that there would already be a Word32 instance.
Looking at the source, it absolutely deals with every case automatically.

On Fri, Aug 10, 2018 at 4:05 AM, PICCA Frederic-Emmanuel <
frederic-emmanuel.picca at synchrotron-soleil.fr> wrote:

> Hello, and thanks for the reply
>
> What about this
>
> instance FromJSON CGid where
>     parseJSON x = CGid <$> (parseJSON x :: Parser Word32)
>     {-# INLINE parseJSON #-}
>
>
> Do you think that it deal with all the problem you are trying to prevent ?
>
>
> Cheers
>
> Fred
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