On Sat, May 16, 2015 at 10:05 PM Alex <
alex323@gmail.com> wrote:
On Sat, 16 May 2015 18:30:31 +0000
Michael Snoyman <michael@snoyman.com> wrote:
> Typically it would look something like this:
>
> myApp :: AppConfig -> Application
>
> main = do
> appConfig <- getAppConfig
> run 3000 $ myApp appConfig
>
> Within myApp, you can now access the AppConfig value and use
> runReaderT to unwrap your MyApp transformer.
>
Is a consequence of this design that I have to use runReaderT every
time I want to use a function of the type (Foo -> MyApp Bar) from within
myApp? Is it better/easier to simply rewrite the all functions myApp
calls so that they accept an AppConfig parameter instead of returning a
MyApp Bar?
--
Alex
That's one approach. You can also do something like:
myApp appConfig req respond = flip runReaderT appConfig $ do