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Explains Backend.hs with Snap+Routing #1001

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Explains Backend.hs with Snap+Routing #1001

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12 changes: 11 additions & 1 deletion skeleton/backend/src/Backend.hs
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Original file line number Diff line number Diff line change
@@ -1,10 +1,20 @@
{-# LANGUAGE LambdaCase #-}
{-# LANGUAGE GADTs #-}

module Backend where

import Control.Monad.IO.Class (liftIO)

import Common.Route
import Obelisk.Backend
import Obelisk.Route

backend :: Backend BackendRoute FrontendRoute
backend = Backend
{ _backend_run = \serve -> serve $ const $ return ()
{ _backend_run = \serve -> serve $ \case
-- Pattern matches routes defined in Route.hs
-- and passes route-based arguments to the Snap monad
BackendRoute_Missing :/ () -> pure () :: Snap ()

, _backend_routeEncoder = fullRouteEncoder
}