Updating the event route to:

        event_route[xhttp:request] {

            $var(xhttp_uri) = $(hu{s.tolower});

            xlog("L_INFO", "event_route[xhttp:request] : hu = '$hu'
        var(xhttp_uri) = '$var(xhttp_uri)'");

            if ( $var(xhttp_uri) =~ "^/rpc") {

                jsonrpc_dispatch();

            } else if ( $var(xhttp_uri) =~ "^/http_rpc") {

                dispatch_xhttp_rpc();

            } else {

                xhttp_reply("200", "OK", "text/html",
        "<html><body>Wrong URL
        $hu</body></html>");

            }

            return;

        }

        Fixed the issue, sorry for the noise :)

Hi,

          I performed the following:

          # kamcmd dbg.trace on
# curl --header 'Content-Type: application/json' \

--data-binary '{\

"jsonrpc": "2.0", \

"method": "ul.lookup", \

"params": [ "location",
"user@example.com"
 ], \

"id": 3 }' 
http://registrar.example.com/rpc

          # kamcmd dbg.trace off

          And the following was presented in the log file

          [5843]: ERROR: *** cfgtrace:request_route=[xhttp:request]
          c=[/etc/kamailio/routing_logic.cfg] l=301 a=63 n=assign

          [5843]: ERROR: *** cfgtrace:request_route=[xhttp:request]
          c=[/etc/kamailio/routing_logic.cfg] l=305 a=16 n=if

          [5843]: ERROR: *** cfgtrace:request_route=[xhttp:request]
          c=[/etc/kamailio/routing_logic.cfg] l=303 a=24
          n=jsonrpc_dispatch

          [5843]: ERROR: *** cfgtrace:request_route=[xhttp:request]
          c=[/etc/kamailio/routing_logic.cfg] l=305 a=63 n=assign

          [5843]: ERROR: *** cfgtrace:request_route=[xhttp:request]
          c=[/etc/kamailio/routing_logic.cfg] l=313 a=16 n=if

          [5843]: ERROR: *** cfgtrace:request_route=[xhttp:request]
          c=[/etc/kamailio/routing_logic.cfg] l=314 a=28 n=xhttp_reply

          [5843]: ERROR: <core> [core/data_lump_rpl.c:83]:
          add_lump_rpl2(): LUMP_RPL_BODY already added!

          [5843]: ERROR: xhttp [xhttp_mod.c:410]: xhttp_send_reply():
          Error while adding reply lump

          The relevent request route is as follows:

          # Handling HTTP events

          event_route[xhttp:request] {

                  $var(xhttp_rpc_root) = $(hu{s.substr,0,4});

                  if ($var(xhttp_rpc_root) == "/rpc") {

                          jsonrpc_dispatch();

                  }

                  $var(xhttp_rpc_root) = $(hu{s.substr,0,9});

                  if ($var(xhttp_rpc_root) == "/http_rpc") {

                          dispatch_xhttp_rpc();

                  }

                  #$var(xhttp_rpc_root) = $(hu{s.substr,0,8});

                  #if ($var(xhttp_rpc_root) == "/http_pi") {

                  #        dispatch_xhttp_pi();

                  #}

                  xhttp_reply("200", "OK", "text/html",

                          "<html><body>Wrong URL
          $hu</body></html>");

          }

          Just looking at the above event route, do I need to "exit" the
          if statements above, would the last xhttp_reply be causing
          this error?

          Thanks

this sounds like the body for reply was already set. Can you enable
cfgtrace in debugger module and see what actions are executed in that
situation?
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users

-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference -- www.kamailioworld.com