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version: v1.7.2
layout: manpage_v2
title: nng_http_req_del_header(3http)
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<h1>nng_http_req_del_header(3http)</h1>
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<h2 id="_name">NAME</h2>
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<p>nng_http_req_del_header - delete HTTP request header</p>
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<h2 id="_synopsis">SYNOPSIS</h2>
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<pre class="pygments highlight"><code data-lang="c"><span></span><span class="tok-cp">#include</span><span class="tok-w"> </span><span class="tok-cpf">&lt;nng/nng.h&gt;</span>
<span class="tok-cp">#include</span><span class="tok-w"> </span><span class="tok-cpf">&lt;nng/supplemental/http/http.h&gt;</span>

<span class="tok-kt">int</span><span class="tok-w"> </span><span class="tok-nf">nng_http_req_del_header</span><span class="tok-p">(</span><span class="tok-n">nng_http_req</span><span class="tok-w"> </span><span class="tok-o">*</span><span class="tok-n">req</span><span class="tok-p">,</span><span class="tok-w"> </span><span class="tok-k">const</span><span class="tok-w"> </span><span class="tok-kt">char</span><span class="tok-w"> </span><span class="tok-o">*</span><span class="tok-n">key</span><span class="tok-p">);</span></code></pre>
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<h2 id="_description">DESCRIPTION</h2>
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<p>The <code>nng_http_req_del_header()</code> removes all HTTP headers with the
associated <em>key</em> from the request structure <em>req</em>.</p>
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<p>The value of <em>key</em> is case insensitive, and should not include the final
colon in an HTTP header.
For example, specifying <code>Host</code> or <code>hOSt</code> are
equivalent, whereas the value <code>Host:</code> is not a legal header key.</p>
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<h2 id="_return_values">RETURN VALUES</h2>
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<p>This function returns 0 on success, and non-zero otherwise.</p>
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<h2 id="_errors">ERRORS</h2>
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<code>NNG_ENOENT</code>
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<p>No header with the key <em>key</em> was present.</p>
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<code>NNG_ENOTSUP</code>
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<p>No support for HTTP in the library.</p>
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<h2 id="_see_also">SEE ALSO</h2>
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<p><a href="nng_http_req_alloc.3http.html">nng_http_req_alloc(3http)</a>,
<a href="nng_http_req_add_header.3http.html">nng_http_req_add_header(3http)</a>,
<a href="nng_http_req_del_header.3http.html">nng_http_req_del_header(3http)</a>,
<a href="nng_http_req_get_header.3http.html">nng_http_req_get_header(3http)</a>,
<a href="nng.7.html">nng(7)</a></p>
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