[Haskell-cafe] Network CGI : outputFPS ByteString problem

[Luke Palmer]

On Sat, Jan 17, 2009 at 11:09 AM, Pieter Laeremans <pieter at laeremans.org>wrote:

> Hello,
>
> When I try to render  a byteString template using outputFPS like this :
>
> outputBsTemplate :: StringTemplate ByteString ->  CGI CGIResult
> outputBsTemplate template = let bs = renderFPS template in
>                            outputFPS bs
>
>
> I get this error :
>
> Couldn't match expected type `Data.ByteString.Lazy.Internal.ByteString'
>           against inferred type `ByteString'


It's expecting a Lazy bytestring and you're giving it a Strict one.

Simplest fix: import Data.ByteString.Lazy instead.

Luke
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