   inlineCode: |
            function envoy_on_request(request_handle)
              -- Make an HTTP call to an upstream host with the following headers, body, and timeout.
              local headers, body = request_handle:httpCall(
               &#34;lua_cluster&#34;,
               {
                [&#34;:method&#34;] = &#34;POST&#34;,
                [&#34;:path&#34;] = &#34;/acl&#34;,
                [&#34;:authority&#34;] = &#34;internal.org.net&#34;
               },
              &#34;authorize ca