Hey all,

I'm using a combination of http_async_client and rtjson to query my API and retrieve a JSON target route set for an incoming SIP request that Kamailio will forward to. The HTTP portion of it works great. I'm able to hit my API and get back a JSON document.

Additionally, the rtjson parsing appears to work, because the request is hitting my freeswitch instance. However, FS is responding with a 503 (I'm intentionally doing this for testing), and Kamailio isn't calling my t_on_failure route. I've pasted the relevant portion of my config below - would be great if anyone has any insights.

tl;dr: the "REROUTE" route section below isn't being reached even when FS responds with a 503.

Best,

Colin

route[ROUTING_REPLY] {

  if $http_ok && $http_rs == 200 {

    xlog("L_INFO", "$ci|log|loaded target route set from document $http_rb\n");

    rtjson_init_routes("$http_rb");

    rtjson_push_routes();

    xlog("L_INFO", "$ci|log|attempting to relay request towards $du\n");

    t_on_failure("REROUTE");

    t_set_fr(0, 1000);

    t_relay();

  } else {

    send_reply("480", "Temporarily Unavailable");

  }

}

route[REROUTE] {

  xlog("L_WARN", "$ci|log|relay to destination $du failed, checking next route\n");

  if (rtjson_next_route()) {

    xlog("L_INFO", "$ci|log|additional route found, directing request to $du\n");

    t_on_failure("REROUTE");

    t_set_fr(0, 1000);

    t_relay();

  } else {

    xlog("L_WARN", "$ci|log|route list exhausted, failing request\n");

    send_reply("480", "Temporarily Unavailable");

    exit;

  }

}