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<p class="MsoNormal">I recently successfully used http_async_client for POST. Will try to help you out here -
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> sr-users [mailto:sr-users-bounces@lists.kamailio.org]
<b>On Behalf Of </b>Ramachandran, Agalya (Contractor)<br>
<b>Sent:</b> Tuesday, April 25, 2017 10:17 AM<br>
<b>To:</b> giacomo.vacca@gmail.com; sr-users@lists.kamailio.org<br>
<b>Subject:</b> [SR-Users] Query with regard to http_client and http_async_client<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi Giacomo,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have few questions with regard to rest client in kamailio.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>I see there are two modules in kamailio for rest client. http_client, http_async_client.<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">I hope http_client does the http transfer in synchronous way.<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">http_async_client does the http transfer in asynchronous manner.
<o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in">Correct me if am wrong here. <o:p></o:p></p>
<p class="MsoNormal" style="text-indent:.5in"><span style="background:yellow;mso-highlight:yellow">Correct.</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>I want to achieve https transfers in async way, so choosing http_async_client.<o:p></o:p></p>
<p class="MsoListParagraph">Is there a way that kamailio <b>maintains persistent TCP connection pooling for http transfer</b>.<o:p></o:p></p>
<p class="MsoListParagraph">I see there is a <span style="color:red">“workers”</span> parameter in http_async_client. By increasing this number does it result it more http request’s handling?
<o:p></o:p></p>
<p class="MsoListParagraph"><span style="background:yellow;mso-highlight:yellow">Let the author reply here.</span><o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><![if !supportLists]><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Also, I have some questions regarding documentation for module http_async_client in 5.0 version.<o:p></o:p></p>
<p class="MsoListParagraph">In the API exposure, it says <b><span style="color:red">“http_async_query(url, route_name)”</span></b><span style="color:red">.
</span><o:p></o:p></p>
<p class="MsoListParagraph">But the example if I want to use <b><span style="color:red">POST</span></b>, it says
<b><span style="color:red">“http_async_query("<a href="http://example.com/test.php">http://example.com/test.php</a>", "{'r_uri':'$rU', 'f_uri':'$fU'}", "HTTP_REPLY");”</span></b><o:p></o:p></p>
<p class="MsoListParagraph">There is a parameter mismatch between the example and the actual function.
<o:p></o:p></p>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoListParagraph">If I try to use <b>GET</b> query, kamailio service is starting. But if I try to give the
<b>POST</b> query with payload, kamailio service is not started. <o:p></o:p></p>
<p class="MsoListParagraph"><span style="color:red">It says, sctp_core_destroy(): SCTP API not initialized.<o:p></o:p></span></p>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoListParagraph">Also I have noticed that, functions like http_append_header(),http_set_method() are removed in 5.0 version, whereas we have this API’s is 4.x versions.
<o:p></o:p></p>
<p class="MsoListParagraph">Is there some issue with the documentation for 5.0 ?<o:p></o:p></p>
<p class="MsoListParagraph"><o:p> </o:p></p>
<p class="MsoNormal">I used it like this and it works - http_async_query("http://TEXT_BROKER/api/events/CallAnswered", <br>
"{'CallId':'$ci', 'Time' : '$TF'}", <br>
"HTTP_REPLY");
<o:p></o:p></p>
<p class="MsoNormal"><span style="background:yellow;mso-highlight:yellow">Issue may be with quotes. Make sure you don’t have “ in the second parameter content. If you send Kamailio log it will be easier to debug.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="margin-left:0in"><o:p> </o:p></p>
<p class="MsoNormal">Please let me the know the details for the above queries. <o:p>
</o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<br>
Agalya<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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