scotty-utils (empty) → 0.1.0.0

raw patch · 3 files changed

+113/−0 lines, 3 filesdep +aesondep +aeson-resultdep +base

Dependencies added: aeson, aeson-result, base, http-types, scotty, text

Files

LICENSE +30/−0
scotty-utils.cabal +30/−0
src/Web/Scotty/Utils.hs +53/−0

+ LICENSE view

@@ -0,0 +1,30 @@+Copyright Li Meng Jun (c) 2017++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * 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.++    * Neither the name of Li Meng Jun nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"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 THE COPYRIGHT+OWNER OR CONTRIBUTORS 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.

+ scotty-utils.cabal view

@@ -0,0 +1,30 @@+name:                scotty-utils+version:             0.1.0.0+synopsis:            Scotty utils library+description:         Scotty utils library.+homepage:            https://github.com/Lupino/yuntan-common/tree/master/scotty-utils#readme+license:             BSD3+license-file:        LICENSE+author:              Li Meng Jun+maintainer:          lmjubuntu@gmail.com+copyright:           MIT+category:            Web, Scotty, Utils+build-type:          Simple+-- extra-source-files:+cabal-version:       >=1.10+++library+  hs-source-dirs:      src+  exposed-modules:     Web.Scotty.Utils+  build-depends:       base >= 4.7 && < 5+                     , http-types+                     , aeson+                     , scotty+                     , text+                     , aeson-result+  default-language:    Haskell2010++source-repository head+  type:     git+  location: https://github.com/Lupino/yuntan-common

+ src/Web/Scotty/Utils.hs view

@@ -0,0 +1,53 @@+{-# LANGUAGE OverloadedStrings #-}++module Web.Scotty.Utils+  ( maybeNotFound+  , eitherNotFound+  , eitherBadRequest+  , err+  , ok+  , errNotFound+  , errBadRequest+  , okListResult+  , safeParam+  ) where++import           Network.HTTP.Types (Status, status400, status404)+import           Web.Scotty.Trans   (ActionT, Parsable, ScottyError, json,+                                     param, rescue, status)++import qualified Data.Aeson.Result  as R (Err, List, err, fromList, fromOk, ok)++import           Data.Aeson         (ToJSON)+import           Data.Text          (Text)+import qualified Data.Text.Lazy     as LT (Text)++maybeNotFound :: (ToJSON a, ScottyError e, Monad m) => String -> Maybe a -> ActionT e m ()+maybeNotFound _ (Just a)  = json a+maybeNotFound obj Nothing = err status404 $ obj ++ " not found."++eitherBadRequest :: (ToJSON a, ScottyError e, Monad m) => Either R.Err a -> ActionT e m ()+eitherBadRequest (Right a) = json a+eitherBadRequest (Left e)  = status status400 >> json e++eitherNotFound :: (ToJSON a, ScottyError e, Monad m) => Either R.Err a -> ActionT e m ()+eitherNotFound (Right a) = json a+eitherNotFound (Left e)  = status status404 >> json e++err :: (ScottyError e, Monad m) => Status -> String -> ActionT e m ()+err st msg = status st >> json (R.err msg)++ok :: (ToJSON a, ScottyError e, Monad m) => Text -> a -> ActionT e m ()+ok key = json . R.fromOk key . R.ok++errNotFound :: (ScottyError e, Monad m) => String -> ActionT e m ()+errNotFound = err status404++errBadRequest :: (ScottyError e, Monad m) => String -> ActionT e m ()+errBadRequest = err status400++okListResult :: (ToJSON a, ScottyError e, Monad m) => Text -> R.List a -> ActionT e m ()+okListResult key = json . R.fromList key++safeParam ::(Parsable a, ScottyError e, Monad m) => LT.Text -> a -> ActionT e m a+safeParam key def = param key `rescue` (\_ -> return def)