MI_HTTP module

Admin Guide

Overview

This module provides a HTTP transport layer implementation for OpenSIPS’s Management Interface.

Dependencies

External Libraries or Applications

None

OpenSIPS Modules

The following modules must be loaded before this module:

httpd module.

Exported Parameters

root(string)

Specifies the root path for HTTP requests: http://[opensips_IP]:[opensips_httpd_port]/[root]

The default value is “mi”.

...
modparam("mi_http", "root", "opensips_mi")
...

trace_destination (string)

Trace destination as defined in the tracing module. Currently the only tracing module is proto_hep. This is where traced mi messages will go.

**WARNING:**A tracing module must be loaded in order for this parameter to work. (for example proto_hep).

Default value is none(not defined).

...
modparam("proto_hep", "trace_destination", "[hep_dest]10.0.0.2;transport=tcp;version=3")

modparam("mi_http", "trace_destination", "hep_dest")
...

trace_bwlist (string)

Filter traced mi commands based on a blacklist or a whitelist. trace_destination must be defined for this parameter to have any purpose. Whitelists can be defined using ‘w’ or ‘W’, blacklists using ‘b’ or ‘B’. The type is separate by the actual blacklist by ’:’. The mi commands in the list must be separated by ’,’.

Defining a blacklists means all the commands that are not blacklisted will be traced. Defining a whitelist means all the commands that are not whitelisted will not be traced. WARNING: One can’t define both a whitelist and a blacklist. Only one of them is allowed. Defining the parameter a second time will just overwrite the first one.

Default value is none(not defined).

...
## blacklist ps and which mi commands
## all the other commands shall be traced
modparam("mi_http", "trace_bwlist", "b: ps, which")
...
## allow only sip_trace mi command
## all the other commands will not be traced
modparam("mi_http", "trace_bwlist", "w: sip_trace")
...

Exported Functions

No function exported to be used from configuration file.

Known Issues

Commands with large responses (like ul_dump) will fail if the configured size of the httpd buffer is to small (or if there isn’t enough pkg memory configured).

Future realeases of the httpd module will address this issue.

Examples

This is an example showing the JSON-RPC request and reply over HTTP for the “ps” MI command.

POST /mi HTTP/1.1
Accept: application/json
Content-Type: application/json
Host: example.net

{"jsonrpc":"2.0","method":"ps","id":10}

HTTP/1.1 200 OK
Content-Length: 317
Content-Type: application/json
Date: Fri, 01 Nov 2013 12:00:00 GMT

{"jsonrpc":"2.0","result":{"Processes":[{"ID":0,"PID":9467,"Type":"attendant"},{"ID":1,"PID":9468,"Type":"HTTPD127.0.0.1:8008"},{"ID":3,"PID":9470,"Type":"time_keeper"},{"ID":4,"PID":9471,"Type":"timer"},{"ID":5,"PID":9472,"Type":"SIPreceiverudp:127.0.0.1:5060"},{"ID":7,"PID":9483,"Type":"Timerhandler"},]},"id":10}

This is an example showing the JSON-RPC request with params and reply over HTTP for the “get_statistics” MI command.

POST /mi HTTP/1.1
Accept: application/json
Content-Type: application/json
Host: example.net

{"jsonrpc":"2.0","method":"get_statistics","params":[["dialog:","tm:"]],"id":10}

HTTP/1.1 200 OK
Content-Length: 317
Content-Type: application/json
Date: Fri, 01 Nov 2013 12:00:00 GMT

{"jsonrpc":"2.0","result":{"dialog:active_dialogs":0,"dialog:early_dialogs":0,"dialog:processed_dialogs":2,"dialog:expired_dialogs":0,"dialog:failed_dialogs":2,"dialog:create_sent":0,"dialog:update_sent":0,"dialog:delete_sent":0,"dialog:create_recv":0,"dialog:update_recv":0,"dialog:delete_recv":0,"tm:received_replies":49252,"tm:relayed_replies":49220,"tm:local_replies":370,"tm:UAS_transactions":49584,"tm:UAC_transactions":0,"tm:2xx_transactions":12004,"tm:3xx_transactions":0,"tm:4xx_transactions":37580,"tm:5xx_transactions":0,"tm:6xx_transactions":0,"tm:inuse_transactions":60},"id":10}

Contributors

By Commit Statistics

Top contributors by DevScore⁽¹⁾, authored commits⁽²⁾ and lines added/removed⁽³⁾

#	Name	DevScore	Commits	Lines++	Lines—
1.	Vlad Patrascu (@rvlad-patrascu)	42	5	1006	1650
2.	Stephane Alnet	20	5	1270	238
3.	Razvan Crainea (@razvancrainea)	17	13	219	82
4.	Ionut Ionita (@ionutrazvanionita)	14	10	280	59
5.	Bogdan-Andrei Iancu (@bogdan-iancu)	11	6	204	138
6.	Liviu Chircu (@liviuchircu)	9	7	31	37
7.	Stefan Darius (@dariusstefan)	7	4	212	28
8.	Vlad Paiu (@vladpaiu)	5	3	9	4
9.	Peter Lemenkov (@lemenkov)	3	1	1	1
10.	Ovidiu Sas (@ovidiusas)	2	1	24	0

(1) DevScore = author_commits + author_lines_added / (project_lines_added / project_commits) + author_lines_deleted / (project_lines_deleted / project_commits)

(2) including any documentation-related commits, excluding merge commits

(3) ignoring whitespace edits, renamed files and auto-generated files

By Commit Activity

#	Name	Commit Activity
1.	Stefan Darius (@dariusstefan)	Jun 2026 - Jul 2026
2.	Razvan Crainea (@razvancrainea)	Dec 2013 - Jun 2026
3.	Ovidiu Sas (@ovidiusas)	Mar 2020 - Mar 2020
4.	Vlad Patrascu (@rvlad-patrascu)	May 2017 - Apr 2019
5.	Bogdan-Andrei Iancu (@bogdan-iancu)	Jul 2014 - Apr 2019
6.	Peter Lemenkov (@lemenkov)	Jun 2018 - Jun 2018
7.	Liviu Chircu (@liviuchircu)	Jul 2014 - Jun 2018
8.	Ionut Ionita (@ionutrazvanionita)	May 2016 - Feb 2017
9.	Vlad Paiu (@vladpaiu)	Nov 2013 - Jan 2016
10.	Stephane Alnet	Oct 2013 - Nov 2013

(1) including any documentation-related commits, excluding merge commits

Documentation

Contributors

Last edited by: Razvan Crainea (@razvancrainea), Ovidiu Sas (@ovidiusas), Vlad Patrascu (@rvlad-patrascu), Peter Lemenkov (@lemenkov), Liviu Chircu (@liviuchircu), Ionut Ionita (@ionutrazvanionita), Bogdan-Andrei Iancu (@bogdan-iancu), Stephane Alnet.

License

All documentation files (i.e. .md extension) are licensed under the Creative Common License 4.0