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<title>src/Servant/API/Capture.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE DataKinds #-}</span>
<a name="line-2"></a><span class='hs-comment'>{-# LANGUAGE DeriveDataTypeable #-}</span>
<a name="line-3"></a><span class='hs-comment'>{-# LANGUAGE PolyKinds #-}</span>
<a name="line-4"></a><span class='hs-comment'>{-# OPTIONS_HADDOCK not-home #-}</span>
<a name="line-5"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Servant</span><span class='hs-varop'>.</span><span class='hs-conid'>API</span><span class='hs-varop'>.</span><span class='hs-conid'>Capture</span> <span class='hs-layout'>(</span><span class='hs-conid'>Capture</span><span class='hs-layout'>,</span> <span class='hs-conid'>CaptureAll</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-6"></a>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Typeable</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-8"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>GHC</span><span class='hs-varop'>.</span><span class='hs-conid'>TypeLits</span> <span class='hs-layout'>(</span><span class='hs-conid'>Symbol</span><span class='hs-layout'>)</span>
<a name="line-9"></a><span class='hs-comment'>-- | Capture a value from the request path under a certain type @a@.</span>
<a name="line-10"></a><span class='hs-comment'>--</span>
<a name="line-11"></a><span class='hs-comment'>-- Example:</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- >>> -- GET /books/:isbn</span>
<a name="line-14"></a><span class='hs-comment'>-- >>> type MyApi = "books" :> Capture "isbn" Text :> Get '[JSON] Book</span>
<a name="line-15"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Capture</span> <span class='hs-layout'>(</span><span class='hs-varid'>sym</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Symbol</span><span class='hs-layout'>)</span> <span class='hs-varid'>a</span>
<a name="line-16"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-17"></a>
<a name="line-18"></a>
<a name="line-19"></a><span class='hs-comment'>-- | Capture all remaining values from the request path under a certain type</span>
<a name="line-20"></a><span class='hs-comment'>-- @a@.</span>
<a name="line-21"></a><span class='hs-comment'>--</span>
<a name="line-22"></a><span class='hs-comment'>-- Example:</span>
<a name="line-23"></a><span class='hs-comment'>--</span>
<a name="line-24"></a><span class='hs-comment'>-- >>> -- GET /src/*</span>
<a name="line-25"></a><span class='hs-comment'>-- >>> type MyAPI = "src" :> CaptureAll "segments" Text :> Get '[JSON] SourceFile</span>
<a name="line-26"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>CaptureAll</span> <span class='hs-layout'>(</span><span class='hs-varid'>sym</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Symbol</span><span class='hs-layout'>)</span> <span class='hs-varid'>a</span>
<a name="line-27"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-28"></a>
<a name="line-29"></a><span class='hs-comment'>-- $setup</span>
<a name="line-30"></a><span class='hs-comment'>-- >>> import Servant.API</span>
<a name="line-31"></a><span class='hs-comment'>-- >>> import Data.Aeson</span>
<a name="line-32"></a><span class='hs-comment'>-- >>> import Data.Text</span>
<a name="line-33"></a><span class='hs-comment'>-- >>> data Book</span>
<a name="line-34"></a><span class='hs-comment'>-- >>> instance ToJSON Book where { toJSON = undefined }</span>
<a name="line-35"></a><span class='hs-comment'>-- >>> data SourceFile</span>
<a name="line-36"></a><span class='hs-comment'>-- >>> instance ToJSON SourceFile where { toJSON = undefined }</span>
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