span> <span class="nx">BeforeAPIUpdate</span><span class="p">(</span><span class="nx">res</span> <span class="nx">http</span><span class="p">.</span><span class="nx">ResponseWriter</span><span class="p">,</span> <span class="nx">req</span> <span class="o">*</span><span class="nx">http</span><span class="p">.</span><span class="nx">Request</span><span class="p">)</span> <span class="kt">error</span> <span class="p">{</span>
    <span class="k">return</span> <span class="kc">nil</span>
<span class="p">}</span