Hi all!
doing some integrations with RTJson module for Kamailio 5.8.4, calling a REST API to return the RTJson's JSON object with 1 or multiple route elements. Kamailio converts the whole SIP headers to JSON using a Javascript function, executed by APP_JDST module, and POSTing the resulting object to the REST API via http_async module.
I couldn't find a way to get the current selected route, from the RTJson object, once Kamailio iterates through the JSON object (i.e: using rtjson_push_routes or rtjson_next_route).
When the RTJson module iterates through the different routes of the JSON object, is there a way to get the JSON part that defines the route currently being used by RTJson?
The goal is to return some custom properties set in each route element of the route array. Once those properties are returned, Kamailio should process them. For example, RTJson supports From and To headers modification and appending new headers with the "extras" element, but there is no way that I know of to modify other headers or remove headers depending on the route.
Does anyone know how: 1 - to return current route element from the routes array of the RTJson object ? 2 - to modify / remove headers other than the From and To headers, according to the custom values set in the RTJson returned from a REST API ?
Thanks in advance!
Atenciosamente / Kind Regards / Cordialement / Un saludo,
*Sérgio Charrua*
It sounds like your use-case might require going outside the boundaries of the `rtjson` formula, and perhaps retrieving and consuming a JSON route set manually.
On Jun 17, 2025, at 10:06 AM, Sergio Charrua via sr-users sr-users@lists.kamailio.org wrote:
Hi all!
doing some integrations with RTJson module for Kamailio 5.8.4, calling a REST API to return the RTJson's JSON object with 1 or multiple route elements. Kamailio converts the whole SIP headers to JSON using a Javascript function, executed by APP_JDST module, and POSTing the resulting object to the REST API via http_async module.
I couldn't find a way to get the current selected route, from the RTJson object, once Kamailio iterates through the JSON object (i.e: using rtjson_push_routes or rtjson_next_route).
When the RTJson module iterates through the different routes of the JSON object, is there a way to get the JSON part that defines the route currently being used by RTJson?
The goal is to return some custom properties set in each route element of the route array. Once those properties are returned, Kamailio should process them. For example, RTJson supports From and To headers modification and appending new headers with the "extras" element, but there is no way that I know of to modify other headers or remove headers depending on the route.
Does anyone know how: 1 - to return current route element from the routes array of the RTJson object ? 2 - to modify / remove headers other than the From and To headers, according to the custom values set in the RTJson returned from a REST API ?
Thanks in advance!
Atenciosamente / Kind Regards / Cordialement / Un saludo,
Sérgio Charrua __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender!
-- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://evaristesys.com, https://www.csrpswitch.com Tel: +1-706-510-6800
Just having a function that returns the current route from the RTJson object would be enough for me.... once I get it, I can parse the json object, modify/remove headers as needed and then relay the call.
If there is no function/method/static variable available in the module, wouldn't that make sense to have it? just asking....
Atenciosamente / Kind Regards / Cordialement / Un saludo,
*Sérgio Charrua*
On Tue, Jun 17, 2025 at 3:43 PM Alex Balashov via sr-users < sr-users@lists.kamailio.org> wrote:
It sounds like your use-case might require going outside the boundaries of the `rtjson` formula, and perhaps retrieving and consuming a JSON route set manually.
On Jun 17, 2025, at 10:06 AM, Sergio Charrua via sr-users <
sr-users@lists.kamailio.org> wrote:
Hi all!
doing some integrations with RTJson module for Kamailio 5.8.4, calling a
REST API to return the RTJson's JSON object with 1 or multiple route elements.
Kamailio converts the whole SIP headers to JSON using a Javascript
function, executed by APP_JDST module, and POSTing the resulting object to the REST API via http_async module.
I couldn't find a way to get the current selected route, from the RTJson
object, once Kamailio iterates through the JSON object (i.e: using rtjson_push_routes or rtjson_next_route).
When the RTJson module iterates through the different routes of the JSON
object, is there a way to get the JSON part that defines the route currently being used by RTJson?
The goal is to return some custom properties set in each route element
of the route array.
Once those properties are returned, Kamailio should process them. For example, RTJson supports From and To headers modification and
appending new headers with the "extras" element, but there is no way that I know of to modify other headers or remove headers depending on the route.
Does anyone know how: 1 - to return current route element from the routes array of the RTJson
object ?
2 - to modify / remove headers other than the From and To headers,
according to the custom values set in the RTJson returned from a REST API ?
Thanks in advance!
Atenciosamente / Kind Regards / Cordialement / Un saludo,
Sérgio Charrua __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions --
sr-users@lists.kamailio.org
To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to
the sender!
-- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://evaristesys.com, https://www.csrpswitch.com Tel: +1-706-510-6800
Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender!
Hello,
probably you can leverage $T_branch_index in a branch_route (or falure_route).
Cheers, Daniel
On 17.06.25 17:08, Sergio Charrua via sr-users wrote:
Just having a function that returns the current route from the RTJson object would be enough for me.... once I get it, I can parse the json object, modify/remove headers as needed and then relay the call.
If there is no function/method/static variable available in the module, wouldn't that make sense to have it? just asking....
Atenciosamente / Kind Regards / Cordialement / Un saludo,
*Sérgio Charrua*
On Tue, Jun 17, 2025 at 3:43 PM Alex Balashov via sr-users sr-users@lists.kamailio.org wrote:
It sounds like your use-case might require going outside the boundaries of the `rtjson` formula, and perhaps retrieving and consuming a JSON route set manually. > On Jun 17, 2025, at 10:06 AM, Sergio Charrua via sr-users <sr-users@lists.kamailio.org> wrote: > > Hi all! > > doing some integrations with RTJson module for Kamailio 5.8.4, calling a REST API to return the RTJson's JSON object with 1 or multiple route elements. > Kamailio converts the whole SIP headers to JSON using a Javascript function, executed by APP_JDST module, and POSTing the resulting object to the REST API via http_async module. > > I couldn't find a way to get the current selected route, from the RTJson object, once Kamailio iterates through the JSON object (i.e: using rtjson_push_routes or rtjson_next_route). > > When the RTJson module iterates through the different routes of the JSON object, is there a way to get the JSON part that defines the route currently being used by RTJson? > > The goal is to return some custom properties set in each route element of the route array. > Once those properties are returned, Kamailio should process them. > For example, RTJson supports From and To headers modification and appending new headers with the "extras" element, but there is no way that I know of to modify other headers or remove headers depending on the route. > > Does anyone know how: > 1 - to return current route element from the routes array of the RTJson object ? > 2 - to modify / remove headers other than the From and To headers, according to the custom values set in the RTJson returned from a REST API ? > > Thanks in advance! > > Atenciosamente / Kind Regards / Cordialement / Un saludo, > > Sérgio Charrua > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org > To unsubscribe send an email to sr-users-leave@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply only to the sender! -- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://evaristesys.com, https://www.csrpswitch.com Tel: +1-706-510-6800 __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender!
Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender!
Thanks for the suggestion, i will take a look at it.
Meanwhile, I thought doing something like adding following lines in the route block where Kamailio gets a response from the REST API:
# Store the full JSON for later access
$dlg_var(route_json) = $var(rtjson); # Initialize route index tracking $dlg_var(current_route_idx) = 0; # Parse and store route count jansson_get("routing.routes", $var(rtjson), "$var(routes_array)"); if ($var(routes_array) != $null) { jansson_array_size("routes", $var(routes_array),"$var(total_routes)"); $dlg_var(total_routes) = $var(total_routes); xlog("L_INFO", "Total routes available: $var(total_routes)\n"); }
# Use rtjson to process the routes
if (!rtjson_init_routes($var(rtjson))) { xlog("L_ERROR", "Failed to initialize routes from JSON\n"); t_reply("500", "Routing Configuration Error"); exit; }
# Set failure route for handling failed attempts t_on_failure("ROUTE_FAILURE"); t_on_reply("REPLY_HANDLER"); t_on_branch("PER_BRANCH_ROUTE"); # Extract current route info before relay # and do some voodoo ....
.....
# Try the first route
if (!rtjson_push_routes()) { xlog("L_ERROR", "Failed to push routes\n"); t_reply("500", "Routing Error"); exit; }# Relay the INVITE
if (!t_relay()) {
# First route failed immediately route(NOTIFY_ROUTE_FAILURE_ASYNC); # Increment route index $dlg_var(current_route_idx) = $dlg_var(current_route_idx) + 1; if (!rtjson_next_route()) { t_reply("503", "Service Unavailable"); exit;
}
But honestly I would expect some fancy method that could simplify all the above lines, like a RTJson variable returning current route index and (why not?) a method returning the JSON part of the current route being processed. Maybe this could be a nice feature for the next release .... ( my C/C++ experiences stopped +30 years ago..... Borland ruled back then! .... Yeah, i'm that old :) )
Atenciosamente / Kind Regards / Cordialement / Un saludo,
*Sérgio Charrua*
On Tue, Jun 17, 2025 at 9:00 PM Daniel-Constantin Mierla miconda@gmail.com wrote:
Hello,
probably you can leverage $T_branch_index in a branch_route (or falure_route).
Cheers, Daniel On 17.06.25 17:08, Sergio Charrua via sr-users wrote:
Just having a function that returns the current route from the RTJson object would be enough for me.... once I get it, I can parse the json object, modify/remove headers as needed and then relay the call.
If there is no function/method/static variable available in the module, wouldn't that make sense to have it? just asking....
Atenciosamente / Kind Regards / Cordialement / Un saludo,
*Sérgio Charrua*
On Tue, Jun 17, 2025 at 3:43 PM Alex Balashov via sr-users < sr-users@lists.kamailio.org> wrote:
It sounds like your use-case might require going outside the boundaries of the `rtjson` formula, and perhaps retrieving and consuming a JSON route set manually.
On Jun 17, 2025, at 10:06 AM, Sergio Charrua via sr-users <
sr-users@lists.kamailio.org> wrote:
Hi all!
doing some integrations with RTJson module for Kamailio 5.8.4, calling
a REST API to return the RTJson's JSON object with 1 or multiple route elements.
Kamailio converts the whole SIP headers to JSON using a Javascript
function, executed by APP_JDST module, and POSTing the resulting object to the REST API via http_async module.
I couldn't find a way to get the current selected route, from the
RTJson object, once Kamailio iterates through the JSON object (i.e: using rtjson_push_routes or rtjson_next_route).
When the RTJson module iterates through the different routes of the
JSON object, is there a way to get the JSON part that defines the route currently being used by RTJson?
The goal is to return some custom properties set in each route element
of the route array.
Once those properties are returned, Kamailio should process them. For example, RTJson supports From and To headers modification and
appending new headers with the "extras" element, but there is no way that I know of to modify other headers or remove headers depending on the route.
Does anyone know how: 1 - to return current route element from the routes array of the RTJson
object ?
2 - to modify / remove headers other than the From and To headers,
according to the custom values set in the RTJson returned from a REST API ?
Thanks in advance!
Atenciosamente / Kind Regards / Cordialement / Un saludo,
Sérgio Charrua __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions --
sr-users@lists.kamailio.org
To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only
to the sender!
-- Alex Balashov Principal Consultant Evariste Systems LLC Web: https://evaristesys.com, https://www.csrpswitch.com Tel: +1-706-510-6800
Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender!
Kamailio - Users Mailing List - Non Commercial Discussions -- sr-users@lists.kamailio.org To unsubscribe send an email to sr-users-leave@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender!
-- Daniel-Constantin Mierla (@ asipto.com)twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com Kamailio Scalability Training - Online, June 16-19, 2025 -- asipto.com
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Alex Balashov -
Daniel-Constantin Mierla -
Sergio Charrua