Yesod

This module simply re-exports from other modules for your convenience.

Re-exports from yesod-core

module Yesod.Core

module Yesod.Json

module Yesod.Persist

Running your application

warp :: (Yesod a, YesodDispatch a a) => Int -> a -> IO ()

A convenience method to run an application using the Warp webserver on the specified port. Automatically calls toWaiApp.

warpDebug :: (Yesod a, YesodDispatch a a) => Int -> a -> IO ()

Same as warp, but also sends a message to stdout for each request, and an "application launched" message as well. Can be useful for development.

develServer

Arguments

:: Int

port number

-> String

module name holding the code

-> String

name of function providing a with-application

-> IO ()

Run a development server, where your code changes are automatically reloaded.

Commonly referenced functions/datatypes

type Application = Request -> ResourceT IO Response

liftIO :: MonadIO m => forall a. IO a -> m a

Lift a computation from the IO monad.

class MonadBase b m => MonadBaseControl b m | m -> b

Instances

MonadBaseControl [] []

MonadBaseControl IO IO

MonadBaseControl Maybe Maybe

MonadBaseControl STM STM

MonadBaseControl Identity Identity

MonadBaseControl b m => MonadBaseControl b (ResourceT m)

MonadBaseControl b m => MonadBaseControl b (ExceptionT m)

MonadBaseControl backend m => MonadBaseControl backend (SqlPersist m)

MonadBaseControl b m => MonadBaseControl b (MaybeT m)

MonadBaseControl b m => MonadBaseControl b (ListT m)

MonadBaseControl b m => MonadBaseControl b (IdentityT m)

MonadBaseControl IO (GHandler sub master)

(Monoid w, MonadBaseControl b m) => MonadBaseControl b (WriterT w m)

(Monoid w, MonadBaseControl b m) => MonadBaseControl b (WriterT w m)

MonadBaseControl b m => MonadBaseControl b (StateT s m)

MonadBaseControl b m => MonadBaseControl b (StateT s m)

MonadBaseControl b m => MonadBaseControl b (ReaderT r m)

(Error e, MonadBaseControl b m) => MonadBaseControl b (ErrorT e m)

(Monoid w, MonadBaseControl b m) => MonadBaseControl b (RWST r w s m)

(Monoid w, MonadBaseControl b m) => MonadBaseControl b (RWST r w s m)

MonadBaseControl ((->) r) ((->) r)

MonadBaseControl (Either e) (Either e)

MonadBaseControl (ST s) (ST s)

MonadBaseControl (ST s) (ST s)

Utilities

showIntegral :: Integral a => a -> String

readIntegral :: Num a => String -> Maybe a

Hamlet library

Hamlet

hamlet :: QuasiQuoter

xhamlet :: QuasiQuoter

type HtmlUrl url = Render url -> Html

A function generating an Html given a URL-rendering function.

type Html = Markup

toHtml :: ToMarkup a => a -> Markup

Julius

julius :: QuasiQuoter

type JavascriptUrl url = (url -> [(Text, Text)] -> Text) -> Javascript

Return type of template-reading functions.

renderJavascriptUrl :: (url -> [(Text, Text)] -> Text) -> JavascriptUrl url -> Text

render with route interpolation. If using this module standalone, apart from type-safe routes, a dummy renderer can be used:

 renderJavascriptUrl (\_ _ -> undefined) javascriptUrl

When using Yesod, a renderer is generated for you, which can be accessed within the GHandler monad: getUrlRenderParams.

Cassius/Lucius

cassius :: QuasiQuoter

lucius :: QuasiQuoter

>>> renderCss ([lucius|foo{bar:baz}|] undefined)
"foo{bar:baz}"

type CssUrl url = (url -> [(Text, Text)] -> Text) -> Css

renderCssUrl :: (url -> [(Text, Text)] -> Text) -> CssUrl url -> Text