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POAccess the HTTP Response from xdmp:http-get()
 

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    <p>Using MarkLogic to pull in data from a web service with <code>xdmp:http-get()</code> or <code>xdmp:http-post()</code>, I'd like to be able to check the headers that come back before I attempt to process the data. In DQ I can do this:</p> <pre><code>let $result := xdmp:http-get($query,$options) (: $query and $options are fine, I promise. :) return $result </code></pre> <p>And the result I get back looks like this:</p> <pre><code>&lt;v:results v:warning="more than one node"&gt; &lt;response&gt; &lt;code&gt;200&lt;/code&gt; &lt;message&gt;OK&lt;/message&gt; &lt;headers&gt; &lt;server&gt;(actual server data was here)&lt;/server&gt; &lt;date&gt;Thu, 07 Jun 2012 16:53:24 GMT&lt;/date&gt; &lt;content-type&gt;application/xml;charset=UTF-8&lt;/content-type&gt; &lt;content-length&gt;2296&lt;/content-length&gt; &lt;connection&gt;close&lt;/connection&gt; &lt;/headers&gt; &lt;/response&gt; </code></pre> <p>followed by the actual response. the problem is that I can't seem to XPath into this response node. If I change my return statement to <code>return $result/response/code</code> I get the empty sequence. If I could check that code to make sure I got a 200 back before attempting to process the actual data that came back it would be much better than using try-catch blocks to see if the data exists and is sane.</p> <p>So, if anyone knows how to access those response codes I would love to see your solution.</p> <p>For the record, I have tried <code>xdmp:get-response-code()</code>, but it doesn't take any parameters, so I don't don't know what response code it's looking at.</p>
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