I may have stumbled across another bug with this module.  I believe the htable.dump method isn’t correctly recognizing that a table name is being provided:

[root@server ~]# curl -s --header 'Content-Type: application/json' --data-binary '{"jsonrpc": "2.0", "method": "htable.dump", "name": "callstats"}' http://1.2.3.4:5060/jsonrpc

{"jsonrpc":"2.0","error":{"code":-32000,"message":"Execution Error"}}

Debug log:

2016-04-19T17:42:30.046892+00:00 server /usr/local/sbin/kamailio[21634]: DEBUG: <core> [tcp_main.c:2465]: tcpconn_do_send(): buf=#012HTTP/1.1 500 No htable name given#015#012Sia: SIP/2.0/TCP 1.2.3.4:54912#015#012Content-Type: application/json#015#012Server: kamailio (4.4.0-rc1 (x86_64/linux))#015#012Content-Length: 69#015#012#015#012{"jsonrpc":"2.0","error":{"code":-32000,"message":"Execution Error"}}

Brooks Bridges | Sr. Voice Services Engineer

O¹ Communications

5190 Golden Foothill Pkwy

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email: bbridges@o1.com | web: www.o1.com