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April 5, 2015 19:08
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snap-problem
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| {-# LANGUAGE TemplateHaskell #-} | |
| module Application where | |
| import Control.Lens | |
| import Snap.Snaplet | |
| import Snap.Snaplet.Heist (Heist, HasHeist(..)) | |
| data App = App | |
| { _heist :: Snaplet (Heist App) | |
| } | |
| makeLenses ''App | |
| instance HasHeist App where | |
| heistLens = subSnaplet heist |
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| <html> | |
| <body> | |
| <something/> | |
| </body> | |
| </html> |
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| module Main where | |
| import Control.Exception (SomeException, try) | |
| import System.IO (stderr) | |
| import qualified Data.Text.IO as Text | |
| import Snap (runSnaplet) | |
| import Snap.Http.Server (defaultConfig, getOther, httpServe) | |
| import qualified Snap.Snaplet.Config as Config | |
| import qualified Site | |
| main :: IO () | |
| main = do | |
| conf <- Config.commandLineAppConfig defaultConfig | |
| (msgs, site, cleanup) <- runSnaplet | |
| (getOther conf >>= Config.appEnvironment) | |
| Site.app | |
| Text.hPutStrLn stderr msgs | |
| _ <- try (httpServe conf site) :: IO (Either SomeException ()) | |
| cleanup |
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| {-# LANGUAGE OverloadedStrings #-} | |
| module Site where | |
| import qualified Data.ByteString as BS | |
| import Control.Lens | |
| import Snap | |
| import Snap.Snaplet | |
| import Snap.Snaplet.Heist | |
| import Heist | |
| import Heist.Interpreted | |
| import Application | |
| routes :: [(BS.ByteString, Handler App App ())] | |
| routes = [("", handle)] | |
| handle :: Handler App App () | |
| handle = do | |
| renderWithSplices "example-template" $ do | |
| "something" ## textSplice "Hello, world!" | |
| app :: SnapletInit App App | |
| app = makeSnaplet "example" "Example" Nothing $ do | |
| let heistConfig = emptyHeistConfig & hcNamespace .~ "h" | |
| h <- nestSnaplet "heist" heist (heistInit' "templates" heistConfig) | |
| addRoutes routes | |
| return (App h) |
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