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<title>Network/Wai/Middleware/MethodOverride.hs</title>
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<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE OverloadedStrings #-}</span>
<a name="line-2"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>Wai</span><span class='hs-varop'>.</span><span class='hs-conid'>Middleware</span><span class='hs-varop'>.</span><span class='hs-conid'>MethodOverride</span>
<a name="line-3"></a> <span class='hs-layout'>(</span> <span class='hs-varid'>methodOverride</span>
<a name="line-4"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-5"></a>
<a name="line-6"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Network</span><span class='hs-varop'>.</span><span class='hs-conid'>Wai</span>
<a name="line-7"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>join</span><span class='hs-layout'>)</span>
<a name="line-8"></a>
<a name="line-9"></a><a name="methodOverride"></a><span class='hs-definition'>methodOverride</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Middleware</span>
<a name="line-10"></a><span class='hs-definition'>methodOverride</span> <span class='hs-varid'>app</span> <span class='hs-varid'>req</span> <span class='hs-keyglyph'>=</span>
<a name="line-11"></a> <span class='hs-varid'>app</span> <span class='hs-varid'>req'</span>
<a name="line-12"></a> <span class='hs-keyword'>where</span>
<a name="line-13"></a> <span class='hs-varid'>req'</span> <span class='hs-keyglyph'>=</span>
<a name="line-14"></a> <span class='hs-keyword'>case</span> <span class='hs-varid'>join</span> <span class='hs-varop'>$</span> <span class='hs-varid'>lookup</span> <span class='hs-str'>"_method"</span> <span class='hs-varop'>$</span> <span class='hs-varid'>queryString</span> <span class='hs-varid'>req</span> <span class='hs-keyword'>of</span>
<a name="line-15"></a> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>req</span>
<a name="line-16"></a> <span class='hs-conid'>Just</span> <span class='hs-varid'>m</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>req</span> <span class='hs-layout'>{</span> <span class='hs-varid'>requestMethod</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>m</span> <span class='hs-layout'>}</span>
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