22 lines
642 B
Haskell
22 lines
642 B
Haskell
{-# LANGUAGE DataKinds #-}
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{-# LANGUAGE DeriveDataTypeable #-}
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{-# LANGUAGE PolyKinds #-}
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module Servant.API.Capture (Capture) where
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import Data.Typeable (Typeable)
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import GHC.TypeLits (Symbol)
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-- | Capture a value from the request path under a certain type @a@.
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--
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-- Example:
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-- >>> -- GET /books/:isbn
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-- >>> type MyApi = "books" :> Capture "isbn" Text :> Get '[JSON] Book
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data Capture (sym :: Symbol) a
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deriving (Typeable)
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-- $setup
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-- >>> import Servant.API
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-- >>> import Data.Aeson
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-- >>> import Data.Text
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-- >>> data Book
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-- >>> instance ToJSON Book where { toJSON = undefined }
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