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vervis/src/Vervis/BinaryBody.hs

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1.4 KiB
Haskell

{- This file is part of Vervis.
-
- Written in 2016 by fr33domlover <fr33domlover@riseup.net>.
-
- ♡ Copying is an act of love. Please copy, reuse and share.
-
- The author(s) have dedicated all copyright and related and neighboring
- rights to this software to the public domain worldwide. This software is
- distributed without any warranty.
-
- You should have received a copy of the CC0 Public Domain Dedication along
- with this software. If not, see
- <http://creativecommons.org/publicdomain/zero/1.0/>.
-}
-- | Support for working with HTTP request bodies which contain binary
-- serialization, using the @binary@ package.
--
-- TODO add ToContent, ToTypedContent etc. instances with Get and Put support
-- TODO rename module to Yesod.<some>.<thing>.Local
-- TODO maybe split into entirely separate small trivial package?
module Vervis.BinaryBody
( decodeRequestBody
)
where
import Control.Monad.IO.Class (liftIO)
import Control.Monad.Logger (MonadLogger)
import Data.Binary.Get (Get)
import Network.Wai (requestBody)
import Yesod.Core (MonadHandler)
import Yesod.Core.Handler (waiRequest)
import Data.Binary.Local
decodeRequestBody
:: (MonadLogger m, MonadHandler m) => Get a -> m (Either DecodeFail a)
decodeRequestBody decode = do
readBytes <- liftIO . requestBody <$> waiRequest
fmap snd <$> decodeIncremental "DecodeReq" readBytes Nothing decode