[SR-Users] Error in parse json documents in kamailio with jansson module

Hello, I used ndbmongo module in kamailio, I used mongodb_find command to get some data from mongo, like this: if(mongodb_find("sermongo", "Asterisk", "user", "{ \"number\" : \"$fU\" }", "res")) { xlog("L_INFO", "Data from mongodb is \" $mongodb(res=>value) \" \n"); $var(data) = $mongodb(res=>value); } The result in syslog is like this: Jan 8 07:23:36 ubuntu14 /usr/local/sbin/kamailio[12127]: {1 2 INVITE MDRlMjRlNGVjZGY1Y2JkYjA5OGM2ZTg1ZTFjZTk0Nzg.} INFO: <script>: user Data from mongodb is " { "_id" : { "$oid" : "5916def36803fa48468b456b" }, "user_type" : "SIP", "context" : "main_routing", "deny" : "0.0.0.0/0.0.0.0", "call_record" : "no", "dtmfmode" : "rfc2833", "canreinvite" : "no", "directmedia" : "no", "host" : "dynamic", "type" : "friend", "nat" : "force_rport,comedia", "port" : "5060", "qualify" : "yes", "callgroup" : "1", "pickupgroup" : "1", "permit" : "0.0.0.0/0.0.0.0", "callcounter" : "yes", "faxdetect" : "no", "call_limit" : "", "name" : "1000", "number" : "1000", "cid_number" : "1000", "secret" : "123123", "date" : { "$date" : 1494671091612 }, "more_options" : "" } " Now i need to get just some keys like "context" from json and save them in PV, i used jansson2.10 for doing this job, like this: jansson_get("user.context", $var(jdata), "$var(context)"); but i have this error in syslog: Jan 8 07:23:36 ubuntu14 /usr/local/sbin/kamailio[12127]: {1 2 INVITE MDRlMjRlNGVjZGY1Y2JkYjA5OGM2ZTg1ZTFjZTk0Nzg.} ERROR: <core> [core/pvapi.c:903]: pv_parse_spec2(): error searching pvar "oid" Jan 8 07:23:36 ubuntu14 /usr/local/sbin/kamailio[12127]: {1 2 INVITE MDRlMjRlNGVjZGY1Y2JkYjA5OGM2ZTg1ZTFjZTk0Nzg.} ERROR: <core> [core/pvapi.c:1107]: pv_parse_spec2(): wrong char [d/100] in [$oid] at [3 (0)] Jan 8 07:23:36 ubuntu14 /usr/local/sbin/kamailio[12127]: {1 2 INVITE MDRlMjRlNGVjZGY1Y2JkYjA5OGM2ZTg1ZTFjZTk0Nzg.} ERROR: <core> [core/sr_module.c:1268]: fix_param(): bad PVE format: "{ "_id" : { "$oid" : "5916def36803fa48468b456b" }, "user_type" : "SIP", "context" : "main_routing", "deny" : "0.0.0.0/0.0.0.0", "call_record" : "no", "dtmfmode" : "rfc2833", "canreinvite" : "no", "directmedia" : "no", "host" : "dynamic", "type" : "friend", "nat" : "force_rport,comedia", "port" : "5060", "qualify" : "yes", "callgroup" : "1", "pickupgroup" : "1", "permit" : "0.0.0.0/0.0.0.0", "callcounter" : "yes", "faxdetect" : "no", "call_limit" : "", "name" : "1000", "number" : "1000", "cid_number" : "1000", "secret" : "123123", "date" : { "$date" : 1494671091612 }, "more_options" : "" }" Jan 8 07:23:36 ubuntu14 /usr/local/sbin/kamailio[12127]: {1 2 INVITE MDRlMjRlNGVjZGY1Y2JkYjA5OGM2ZTg1ZTFjZTk0Nzg.} ERROR: <core> [core/mod_fix.c:564]: fixup_spve_null(): Cannot convert function parameter 1 to spve Jan 8 07:23:36 ubuntu14 /usr/local/sbin/kamailio[12127]: {1 2 INVITE MDRlMjRlNGVjZGY1Y2JkYjA5OGM2ZTg1ZTFjZTk0Nzg.} ERROR: <core> [core/action.c:1139]: do_action(): runtime fixup failed for jansson_get param 2 Jan 8 07:23:36 ubuntu14 /usr/local/sbin/kamailio[12127]: {1 2 INVITE MDRlMjRlNGVjZGY1Y2JkYjA5OGM2ZTg1ZTFjZTk0Nzg.} ERROR: <core> [core/action.c:1518]: do_action(): run action error at: /usr/local/etc/kamailio/kamailio.cfg:990 Jan 8 07:23:36 ubuntu14 /usr/local/sbin/kamailio[12127]: {1 2 INVITE MDRlMjRlNGVjZGY1Y2JkYjA5OGM2ZTg1ZTFjZTk0Nzg.} ERROR: <script>: Send SIP message to Simotel <192.168.122.1:36854> Let me know how i could fixed this Error in regard of [$oid]? Thanks with regards. -- --Mojtaba Esfandiari.S