Shpadoinkle-router (empty) → 0.1.0.0
raw patch · 7 files changed
+627/−0 lines, 7 filesdep +Shpadoinkledep +Shpadoinkle-backend-staticdep +aeson
Dependencies added: Shpadoinkle, Shpadoinkle-backend-static, aeson, base, bytestring, compactable, exceptions, ghcjs-dom, http-api-data, jsaddle, jsaddle-dom, lens, network-uri, servant, servant-client, servant-client-ghcjs, servant-server, text, unliftio, wai, wai-app-static, warp
Files
- CHANGELOG.md +0/−0
- LICENSE +26/−0
- README.md +50/−0
- Shpadoinkle-router.cabal +64/−0
- Shpadoinkle/Router.hs +315/−0
- Shpadoinkle/Router/Client.hs +37/−0
- Shpadoinkle/Router/Server.hs +135/−0
+ CHANGELOG.md view
+ LICENSE view
@@ -0,0 +1,26 @@+Shpadoinkle Router, I think I know exactly what it means+Copyright © 2019 Isaac Shpaira+All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:+1. Redistributions of source code must retain the above copyright+notice, this list of conditions and the following disclaimer.+2. Redistributions in binary form must reproduce the above copyright+notice, this list of conditions and the following disclaimer in the+documentation and/or other materials provided with the distribution.+3. Neither the name of the <`3:organization`> nor the+names of its contributors may be used to endorse or promote products+derived from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY <|2|> ''AS IS'' AND ANY+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE+DISCLAIMED. IN NO EVENT SHALL <|2|> BE LIABLE FOR ANY+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.+
+ README.md view
@@ -0,0 +1,50 @@+# Shpadoinkle Servant Router++[](https://gitlab.com/fresheyeball/Shpadoinkle)+[](https://opensource.org/licenses/BSD-3-Clause)+[](https://builtwithnix.org)+[](https://hackage.haskell.org/package/Shpadoinkle-router)+[](http://packdeps.haskellers.com/reverse/Shpadoinkle-router)+[](https://matrix.hackage.haskell.org/#/package/Shpadoinkle-router)+++A Servant combinator based router for Shpadoinkle single-page applications.+Consuming this router requires that you provide two types:++- Type alias for the recognized URIs+- ADT representing views that can be rendered++The relationship between these two types is surjective. Meaning more than one URI+may result in the same route. This is important for backward compatibility, so the+routing schema can evolve while still supporting older schemas.++Since interactions are done through the ADT, application code should be type-safe,+and route canonically.++```haskell+-- The accepted URIs+type SPA+ = "echo" :> QueryParam "echo" Text :> Raw+ :<|> "v2" :> "echo" :> QueryParam "echo" Text :> Raw+ :<|> "home" :> Raw++-- The routes that can be rendered+data Route+ = Echo (Maybe Text)+ | Home++-- Surjection from URIs to routes+routes :: SPA :>> Route+routes+ = REcho+ :<|> REcho+ :<|> Home++-- Canonical URI for each route+instance Routed SPA Route where+ redirect = \case+ REcho t -> Redirect (Proxy @("v2" :> "echo" :> QueryParam "echo" Text :> Raw)) ($ t)+ Home -> Redirect (Proxy @("home" :> Raw)) id+```++The above specification can be used on both the client and the server. See the `servant-crud` example for more on how to use this technique.
+ Shpadoinkle-router.cabal view
@@ -0,0 +1,64 @@+cabal-version: 1.12++-- This file has been generated from package.yaml by hpack version 0.32.0.+--+-- see: https://github.com/sol/hpack+--+-- hash: 5735f0e2c7456e196955db1daff72c380af8cdd65b596217d5141a902926af44++name: Shpadoinkle-router+version: 0.1.0.0+synopsis: A single page application rounter for Shpadoinkle based on Servant.+description: Surjective single page application routing with Servant. Surjectivity means routes can be backward compatible, allowing URLs to evolve. Since routes are specified as Servant combinators, serving these routes from the backend is trivial. For an example of leveraging the client-server isomorphism via Servant specification, check the servant-crud example.+category: Web+author: Isaac Shapira+maintainer: fresheyeball@protonmail.com+license: BSD3+license-file: LICENSE+build-type: Simple+extra-source-files:+ README.md+ CHANGELOG.md++source-repository head+ type: git+ location: https://gitlab.com/fresheyeball/Shpadoinkle.git++library+ exposed-modules:+ Shpadoinkle.Router+ Shpadoinkle.Router.Client+ Shpadoinkle.Router.Server+ other-modules:+ Paths_Shpadoinkle_router+ hs-source-dirs:+ ./.+ ghc-options: -Wall -Wcompat -fwarn-redundant-constraints -fwarn-incomplete-uni-patterns -fwarn-tabs -fwarn-incomplete-record-updates -fwarn-identities+ build-depends:+ Shpadoinkle+ , aeson >=1.4.4 && <1.5+ , base >=4.12.0 && <4.15+ , bytestring >=0.10.8 && <0.11+ , compactable >=0.1.2 && <0.2+ , exceptions >=0.10.3 && <0.11+ , ghcjs-dom >=0.9.4 && <0.20+ , http-api-data >=0.4.1 && <0.5+ , jsaddle >=0.9.7 && <0.20+ , jsaddle-dom >=0.9.3 && <0.20+ , lens >=4.17.1 && <5.0+ , network-uri >=2.6.1 && <2.7+ , servant >=0.16 && <0.18+ , text >=1.2.3 && <1.3+ , unliftio >=0.2.12 && <0.3+ if impl(ghcjs)+ build-depends:+ servant-client-ghcjs+ else+ build-depends:+ Shpadoinkle-backend-static+ , servant-client >=0.16.0 && <0.18+ , servant-server >=0.16 && <0.18+ , wai >=3.2.2 && <3.3+ , wai-app-static >=3.1.6 && <3.2+ , warp >=3.2.28 && <3.3+ default-language: Haskell2010
+ Shpadoinkle/Router.hs view
@@ -0,0 +1,315 @@+{-# LANGUAGE AllowAmbiguousTypes #-}+{-# LANGUAGE CPP #-}+{-# LANGUAGE DataKinds #-}+{-# LANGUAGE ExistentialQuantification #-}+{-# LANGUAGE ExtendedDefaultRules #-}+{-# LANGUAGE FlexibleInstances #-}+{-# LANGUAGE GADTs #-}+{-# LANGUAGE InstanceSigs #-}+{-# LANGUAGE LambdaCase #-}+{-# LANGUAGE MultiParamTypeClasses #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE RankNTypes #-}+{-# LANGUAGE ScopedTypeVariables #-}+{-# LANGUAGE TypeApplications #-}+{-# LANGUAGE TypeFamilies #-}+{-# LANGUAGE TypeOperators #-}+{-# LANGUAGE UndecidableInstances #-}+{-# OPTIONS_GHC -fno-warn-type-defaults #-}+++-- | This module provides for Servant based routing for Shpadoinkle applications.+-- The technique in use is standard for Servant. We have a GADT @Router@, and some+-- type class inductive programming with class @HasRouter@. The @Router@ the term+-- necissary for the runtime operation of single page application routing.+--+-- State changes are tracked by the "popstate" event and an @MVar ()@. Ideally this is+-- done the browser's native api's only, and not an @MVar@. However that approach is+-- blocked by a but in GHCjs which is documented here https://stackoverflow.com/questions/59954787/cant-get-dispatchevent-to-fire-in-ghcjs.+++module Shpadoinkle.Router+ ( Raw, Redirect(..)+ , fromRouter+ , HasRouter(..)+ , HasLink(..)+ , Routed(..)+ , fullPageSPA+ , navigate+ , withHydration+ , toHydration+ ) where+++import Control.Applicative+import Control.Compactable as C+import Control.Concurrent+import Control.Monad+import Control.Monad.IO.Class+import Data.Aeson+import Data.ByteString.Lazy (fromStrict, toStrict)+import Data.Kind+import Data.Maybe (isJust)+import Data.Proxy+import Data.Text (Text)+import qualified Data.Text as T+import Data.Text.Encoding (decodeUtf8, encodeUtf8)+import GHC.Conc+import GHC.TypeLits+import GHCJS.DOM+import GHCJS.DOM.EventM (on)+import GHCJS.DOM.EventTargetClosures+import GHCJS.DOM.History+import GHCJS.DOM.Location (getPathname, getSearch)+import GHCJS.DOM.PopStateEvent+import GHCJS.DOM.Window+import Language.Javascript.JSaddle (fromJSVal, jsg)+import Servant.API hiding (uriPath, uriQuery)+import Servant.Links (Link, URI (..), linkURI,+ safeLink)+import System.IO.Unsafe+import Web.HttpApiData (parseQueryParamMaybe,+ parseUrlPieceMaybe)++import Shpadoinkle+++default (Text)+++-- | Term level API representation+data Router a where+ RChoice :: Router a -> Router a -> Router a+ RCapture :: FromHttpApiData x => (x -> Router a) -> Router a+ RQueryParam :: (FromHttpApiData x, KnownSymbol sym) => Proxy sym -> (Maybe x -> Router a) -> Router a+ RQueryParams :: (FromHttpApiData x, KnownSymbol sym) => Proxy sym -> ([x] -> Router a) -> Router a+ RQueryFlag :: KnownSymbol sym => Proxy sym -> (Bool -> Router a) -> Router a+ RPath :: KnownSymbol sym => Proxy sym -> Router a -> Router a+ RView :: a -> Router a+++-- | Redirect is an existentialized Proxy that must be a member of the API+data Redirect api+ = forall sub. (IsElem sub api, HasLink sub)+ => Redirect (Proxy sub) (MkLink sub Link -> Link)+++-- | Ensure global coherence between routes and the api+class Routed a r where redirect :: r -> Redirect a+++syncRoute :: MVar ()+syncRoute = unsafePerformIO newEmptyMVar+{-# NOINLINE syncRoute #-}+++-- | When using serverside rendering you may benefit from seeding the page with+-- data. This function get an assumed global variable on the page called "initState"+-- if it's found, we return that. Otherwise we use the provided (r -> m a) function+-- to generate the init state for our app, based on the currout route. Typically+-- this is used on the client side.+withHydration :: (MonadJSM m, FromJSON a) => (r -> m a) -> r -> m a+withHydration s r = do+ i <- liftJSM $ fromJSVal =<< jsg "initState"+ case decode . fromStrict . encodeUtf8 =<< i of+ Just fe -> return fe+ _ -> s r++-- | When using serverside rendering you may benefit from seeding the page with+-- data. This function returns a script tag that makes a global variable "initState"+-- containing a JSON representation to be used as the initial state of the application+-- on page load. Typically this is used on the server side.+toHydration :: ToJSON a => a -> Html m b+toHydration fe =+ h "script" [] [ text . decodeUtf8 . toStrict $ "window.initState = '" <> encode fe <> "'" ]+++-- | Change the browser's URL to the canonical URL for a given route `r`.+navigate :: forall a m r. MonadJSM m => Routed a r => r -> m ()+navigate r = do+ w <- currentWindowUnchecked+ history <- getHistory w+ case redirect r :: Redirect a of+ Redirect pr mf -> do+ let uri = linkURI . mf $ safeLink (Proxy @a) pr+ pushState history () "" . Just . T.pack $+ "/" ++ uriPath uri ++ uriQuery uri ++ uriFragment uri+ liftIO $ putMVar syncRoute ()+++-- | This method wraps @shpadoinkle@ providing for a convenient entrypoint+-- for single page applications. It wires together your normal @shpadoinkle@+-- app components with a function to respond to route changes, and the route mapping+-- itself.+fullPageSPA :: forall layout b a r m+ . HasRouter layout+ => Backend b m a+ => Eq a+ => (m ~> JSM)+ -- ^ how do we get to JSM?+ -> (TVar a -> b m ~> m)+ -- ^ What backend are we running?+ -> (r -> m a)+ -- ^ what is the initial state?+ -> (a -> Html (b m) a)+ -- ^ how should the html look?+ -> b m RawNode+ -- ^ where do we render?+ -> (r -> a -> m a)+ -- ^ listen for route changes+ -> layout :>> r+ -- ^ how shall we relate urls to routes?+ -> JSM ()+fullPageSPA toJSM backend i' view getStage onRoute routes = do+ let router = route @layout @r routes+ window <- currentWindowUnchecked+ getRoute window router $ \case+ Nothing -> return ()+ Just r -> do+ i <- toJSM $ i' r+ model <- createTerritory i+ _ <- listenStateChange router $ writeUpdate model . (toJSM .) . onRoute+ shpadoinkle toJSM backend i model view getStage+ syncPoint+++-- | ?foo=bar&baz=qux -> [("foo","bar"),("baz","qux")]+parseQuery :: Text -> [(Text,Text)]+parseQuery = (=<<) toKVs . T.splitOn "&" . T.drop 1+ where toKVs t = case T.splitOn "=" t of+ [k,v] -> [(k,v)]+ _ -> []+++-- | /foo/bar -> ["foo","bar"]+parseSegments :: Text -> [Text]+parseSegments = C.filter (/= "") . T.splitOn "/"+++popstate :: EventName Window PopStateEvent+popstate = unsafeEventName "popstate"+++getRoute+ :: Window -> Router r -> (Maybe r -> JSM a) -> JSM a+getRoute window router handle = do+ location <- getLocation window+ path <- getPathname location+ search <- getSearch location+ let query = parseQuery search+ segs = parseSegments path+ handle $ fromRouter query segs router+++forkJSM :: JSM () -> JSM ()+forkJSM a = void . liftIO . forkIO . runJSM a =<< askJSM+{-# INLINE forkJSM #-}+++listenStateChange+ :: Router r -> (r -> JSM ()) -> JSM ()+listenStateChange router handle = do+ w <- currentWindowUnchecked+ _ <- on w popstate . liftIO $ putMVar syncRoute ()+ _ <- liftJSM . forkJSM . forever $ do+ liftIO $ takeMVar syncRoute+ getRoute w router $ maybe (return ()) handle+ return ()+++-- | Get an @r@ from a route and url context+fromRouter :: [(Text,Text)] -> [Text] -> Router r -> Maybe r+fromRouter queries segs = \case+ RChoice x y -> fromRouter queries segs x <|> fromRouter queries segs y+ RCapture f -> case segs of+ [] -> Nothing+ capture:paths -> fromRouter queries paths . f =<< parseUrlPieceMaybe capture+ RQueryParam sym f ->+ case lookup (T.pack $ symbolVal sym) queries of+ Nothing -> fromRouter queries segs $ f Nothing+ Just t -> fromRouter queries segs $ f (parseQueryParamMaybe t)+ RQueryParams sym f ->+ fromRouter queries segs . f . compact $ parseQueryParamMaybe . snd <$> C.filter+ (\(k, _) -> k == T.pack (symbolVal sym))+ queries+ RQueryFlag sym f ->+ fromRouter queries segs . f . isJust $ lookup (T.pack $ symbolVal sym) queries+ RPath sym a -> case segs of+ [] -> Nothing+ p:paths -> if p == T.pack (symbolVal sym) then+ fromRouter queries paths a else Nothing+ RView a -> if null segs then Just a else Nothing+++-- | This type class traverses the Servant API, and sets up a function to+-- build its term level representation.+class HasRouter layout where+ -- | :>> (pronounced "routed as") should be surjective.+ -- As in one route can be the handler for more than one url.+ type layout :>> route :: Type+ route :: layout :>> route -> Router route+++infixr 4 :>>+++instance (HasRouter x, HasRouter y)+ => HasRouter (x :<|> y) where+ type (x :<|> y) :>> r = x :>> r :<|> y :>> r++ route :: x :>> r :<|> y :>> r -> Router r+ route (x :<|> y) = RChoice (route @x x) (route @y y)+ {-# INLINABLE route #-}++instance (HasRouter sub, FromHttpApiData x)+ => HasRouter (Capture sym x :> sub) where++ type (Capture sym x :> sub) :>> a = x -> sub :>> a++ route :: (x -> sub :>> r) -> Router r+ route = RCapture . (route @sub .)+ {-# INLINABLE route #-}++instance (HasRouter sub, FromHttpApiData x, KnownSymbol sym)+ => HasRouter (QueryParam sym x :> sub) where++ type (QueryParam sym x :> sub) :>> a = Maybe x -> sub :>> a++ route :: (Maybe x -> sub :>> r) -> Router r+ route = RQueryParam (Proxy @sym) . (route @sub .)+ {-# INLINABLE route #-}++instance (HasRouter sub, FromHttpApiData x, KnownSymbol sym)+ => HasRouter (QueryParams sym x :> sub) where++ type (QueryParams sym x :> sub) :>> a = [x] -> sub :>> a++ route :: ([x] -> sub :>> r) -> Router r+ route = RQueryParams (Proxy @sym) . (route @sub .)+ {-# INLINABLE route #-}++instance (HasRouter sub, KnownSymbol sym)+ => HasRouter (QueryFlag sym :> sub) where++ type (QueryFlag sym :> sub) :>> a = Bool -> sub :>> a++ route :: (Bool -> sub :>> r) -> Router r+ route = RQueryFlag (Proxy @sym) . (route @sub .)+ {-# INLINABLE route #-}++instance (HasRouter sub, KnownSymbol path)+ => HasRouter ((path :: Symbol) :> sub) where++ type (path :> sub) :>> a = sub :>> a++ route :: sub :>> r -> Router r+ route = RPath (Proxy @path) . route @sub+ {-# INLINABLE route #-}++instance HasRouter Raw where+ type Raw :>> a = a++ route :: r -> Router r+ route = RView+ {-# INLINABLE route #-}+
+ Shpadoinkle/Router/Client.hs view
@@ -0,0 +1,37 @@+{-# LANGUAGE CPP #-}+{-# LANGUAGE RankNTypes #-}+{-# LANGUAGE TypeOperators #-}+{-# OPTIONS_GHC -fno-warn-redundant-constraints #-}++-- | Helper for querying the server from client side code, using a derived client.+-- This module exists to save you from having to use CPP yourself.++module Shpadoinkle.Router.Client+ ( runXHR+#ifdef ghcjs_HOST_OS+ , module Servant.Client.Ghcjs+#else+ , module Servant.Client+#endif+ ) where+++import Control.Monad.Catch+#ifdef ghcjs_HOST_OS+import Servant.Client.Ghcjs+#else+import Servant.Client+#endif+import UnliftIO++import Shpadoinkle+++-- | Run the ClientM from Servant as an XHR request.+-- Raises an exception if evalued with GHC.+runXHR :: MonadIO m => MonadThrow m => (JSM a -> m a) -> ClientM a -> m a+#ifdef ghcjs_HOST_OS+runXHR f m = f $ either throwM pure =<< runClientM m+#else+runXHR = error "not supported for ghc"+#endif
+ Shpadoinkle/Router/Server.hs view
@@ -0,0 +1,135 @@+{-# LANGUAGE AllowAmbiguousTypes #-}+{-# LANGUAGE CPP #-}+{-# LANGUAGE DataKinds #-}+{-# LANGUAGE FlexibleInstances #-}+{-# LANGUAGE InstanceSigs #-}+{-# LANGUAGE MultiParamTypeClasses #-}+{-# LANGUAGE OverloadedStrings #-}+{-# LANGUAGE ScopedTypeVariables #-}+{-# LANGUAGE TypeApplications #-}+{-# LANGUAGE TypeFamilies #-}+{-# LANGUAGE TypeOperators #-}+{-# LANGUAGE UndecidableInstances #-}+++-- | Since the single page application URIs are specified with Servant, we can automate much+-- of the process of serving the application with server-side rendering. This module provides+-- the basic infrastructure for serving rendered HTML using the same code that would be used+-- to render the same route on the client-side. Ensuring a consistent rendering, whether a+-- URI is accessed via a client-side popstate event, or via the initial page load.+++module Shpadoinkle.Router.Server where+++#ifndef ghcjs_HOST_OS+++import Data.ByteString.Lazy as BS+import Data.Text.Encoding+import GHC.TypeLits+import Network.Wai+import Network.Wai.Application.Static+import Servant.API+import Servant.Server+import Servant.Server.StaticFiles+import WaiAppStatic.Types++import Shpadoinkle+import Shpadoinkle.Backend.Static+import Shpadoinkle.Router+++-- | Helper to serve a @ByteString@ as a file from the web application interface.+toFile :: Piece -> ByteString -> File+toFile p bs = File+ { fileGetSize = fromIntegral $ BS.length bs+ , fileToResponse = \status headers -> responseLBS status headers bs+ , fileName = p+ , fileGetHash = pure Nothing+ , fileGetModified = Nothing+ }+++-- | Serve index.html generated from a Shpadoinkle view, using the static backend, otherwise serve out of a directory.+defaultSPAServerSettings+ :: FilePath+ -- ^ Directory to try files+ -> IO (Html m a)+ -- ^ Get the index.html page+ -> StaticSettings+defaultSPAServerSettings root mhtml = settings { ssLookupFile = orIndex, ssMaxAge = MaxAgeSeconds 0 }+ where++ settings = defaultWebAppSettings root++ orIndex ps = do+ let file ps' = toFile ps' . BS.fromStrict . encodeUtf8 . renderStatic+ res <- ssLookupFile settings ps+ html <- mhtml+ return $ case (res, toPieces ["index.html"]) of+ (LRNotFound, Just [ps']) -> LRFile $ file ps' html+ (_, Just [ps']) | [ps'] == ps || Prelude.null ps -> LRFile $ file ps' html+ _ -> res+++-- | Serve the UI by generating a Servant Server from the SPA URIs+class ServeRouter layout route where+ serveUI+ :: FilePath+ -- ^ Where should we look for static assets?+ -> (route -> IO (Html m a))+ -- ^ How shall we get the page based on the requested route?+ -> layout :>> route+ -- ^ What is the relationship between URIs and routes?+ -> Server layout+++instance (ServeRouter x r, ServeRouter y r)+ => ServeRouter (x :<|> y) r where++ serveUI :: FilePath -> (r -> IO (Html m a)) -> (x :<|> y) :>> r -> Server (x :<|> y)+ serveUI root view (x :<|> y) = serveUI @x root view x :<|> serveUI @y root view y+ {-# INLINABLE serveUI #-}++instance ServeRouter sub r+ => ServeRouter (Capture sym x :> sub) r where++ serveUI :: FilePath -> (r -> IO (Html m a)) -> (x -> sub :>> r) -> Server (Capture sym x :> sub)+ serveUI root view = (serveUI @sub root view .)+ {-# INLINABLE serveUI #-}++instance ServeRouter sub r+ => ServeRouter (QueryParam sym x :> sub) r where++ serveUI :: FilePath -> (r -> IO (Html m a)) -> (Maybe x -> sub :>> r) -> Server (QueryParam sym x :> sub)+ serveUI root view = (serveUI @sub root view .)+ {-# INLINABLE serveUI #-}++instance ServeRouter sub r+ => ServeRouter (QueryParams sym x :> sub) r where++ serveUI :: FilePath -> (r -> IO (Html m a)) -> ([x] -> sub :>> r) -> Server (QueryParams sym x :> sub)+ serveUI root view = (serveUI @sub root view .)+ {-# INLINABLE serveUI #-}++instance ServeRouter sub r+ => ServeRouter (QueryFlag sym :> sub) r where++ serveUI :: FilePath -> (r -> IO (Html m a)) -> (Bool -> sub :>> r) -> Server (QueryFlag sym :> sub)+ serveUI root view = (serveUI @sub root view .)+ {-# INLINABLE serveUI #-}++instance ServeRouter sub r+ => ServeRouter ((path :: Symbol) :> sub) r where++ serveUI :: FilePath -> (r -> IO (Html m a)) -> (path :> sub) :>> r -> Server (path :> sub)+ serveUI = serveUI @sub+ {-# INLINABLE serveUI #-}++instance ServeRouter Raw r where+ serveUI :: FilePath -> (r -> IO (Html m a)) -> Raw :>> r -> Server Raw+ serveUI root view = serveDirectoryWith . defaultSPAServerSettings root . view+ {-# INLINABLE serveUI #-}++#endif