Hi, reusing the same connection to the same url is delegated to liburl, so you can have that when using http_async_client. More workers will increase the capacity at the price of resources (shared memory). I wrote a wrap up about building the request payload here: https://lists.kamailio.org/pipermail/sr-users/2016-December/095454.html - please double check escaping. The function methods have been reviewed in version 5 and removed, replaced by pseudovariable settings which is more common practice in kamailio. Instead of http_append_header() use $http_req(hdr) = "X-theheader: the value";
Instead of http_set_method() use $http_req(method) = "POST"; The latest documentation requires a little review for some mentions of the old functions. Will try to fix as soon as possible. Best Regards, Giacomo On 25 April 2017 at 19:02, Pranathi Venkatayogi <[email protected]> wrote: > I recently successfully used http_async_client for POST. Will try to help > you out here - > > > > *From:* sr-users [mailto:[email protected]] *On Behalf > Of *Ramachandran, Agalya (Contractor) > *Sent:* Tuesday, April 25, 2017 10:17 AM > *To:* [email protected]; [email protected] > *Subject:* [SR-Users] Query with regard to http_client and > http_async_client > > > > Hi Giacomo, > > > > I have few questions with regard to rest client in kamailio. > > > > 1) I see there are two modules in kamailio for rest client. > http_client, http_async_client. > > I hope http_client does the http transfer in synchronous way. > > http_async_client does the http transfer in asynchronous manner. > > Correct me if am wrong here. > > Correct. > > 2) I want to achieve https transfers in async way, so choosing > http_async_client. > > Is there a way that kamailio *maintains persistent TCP connection > pooling for http transfer*. > > I see there is a “workers” parameter in http_async_client. By increasing > this number does it result it more http request’s handling? > > Let the author reply here. > > 3) Also, I have some questions regarding documentation for module > http_async_client in 5.0 version. > > In the API exposure, it says *“http_async_query(url, route_name)”*. > > But the example if I want to use *POST*, it says > *“http_async_query("http://example.com/test.php > <http://example.com/test.php>", "{'r_uri':'$rU', 'f_uri':'$fU'}", > "HTTP_REPLY");”* > > There is a parameter mismatch between the example and the actual function. > > > > If I try to use *GET* query, kamailio service is starting. But if I try > to give the *POST* query with payload, kamailio service is not started. > > It says, sctp_core_destroy(): SCTP API not initialized. > > > > Also I have noticed that, functions like > http_append_header(),http_set_method() > are removed in 5.0 version, whereas we have this API’s is 4.x versions. > > Is there some issue with the documentation for 5.0 ? > > > > I used it like this and it works - http_async_query("http://TEXT_ > BROKER/api/events/CallAnswered", > > "{'CallId':'$ci', 'Time' : '$TF'}", > > "HTTP_REPLY"); > > 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. > > > > Please let me the know the details for the above queries. > > > > Regards, > Agalya > > > > > > >
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