How to enable ARI and Connect with WebSocket on Asterisk on Oracle Linux 9.3

To Enable ARI And Connect With WebSocket On Asterisk On Oracle Linux 9.3

Introduction:

ARI is an asynchronous API that allows developers to build communications applications by exposing the raw primitive objects in Asterisk - channels, bridges, endpoints, media, etc. - through an intuitive REST interface. The state of the objects the user controls is conveyed via JSON events over a WebSocket.

Procedure Steps:

Step 1: Check the OS version by using the below command

[root@linuxhelp ~]# cat /etc/os-release
NAME="Oracle Linux Server"
VERSION="9.3"
ID="ol"
ID_LIKE="fedora"
VARIANT="Server"
VARIANT_ID="server"
VERSION_ID="9.3"
PLATFORM_ID="platform:el9"
PRETTY_NAME="Oracle Linux Server 9.3"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:9:3:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://github.com/oracle/oracle-linux"
ORACLE_BUGZILLA_PRODUCT="Oracle Linux 9"
ORACLE_BUGZILLA_PRODUCT_VERSION=9.3
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=9.3

Step 2: Now check the status of the Asterisk service by using the below command

[root@linuxhelp ~]# systemctl status asterisk.service
● asterisk.service - LSB: Asterisk PBX
     Loaded: loaded (/etc/rc.d/init.d/asterisk; generated)
     Active: active (running) since Mon 2024-02-19 04:02:05 IST; 2 months 23 days ago
       Docs: man:systemd-sysv-generator(8)
    Process: 1001 ExecStart=/etc/rc.d/init.d/asterisk start (code=exited, status=0/SUCCESS)
   Main PID: 1062
      Tasks: 37 (limit: 21739)
     Memory: 63.3M
        CPU: 6.710s
     CGroup: /system.slice/asterisk.service
             ├─1056 /bin/sh /usr/sbin/safe_asterisk
             └─5831 /usr/sbin/asterisk -f -vvvg -c

Feb 19 04:02:05 linuxhelp systemd[1]: Starting LSB: Asterisk PBX...
Feb 19 04:02:05 linuxhelp asterisk[1001]: Starting asterisk:
Feb 19 04:02:05 linuxhelp systemd[1]: asterisk.service: Can't open PID file /run/asterisk/asterisk.pid (yet?) after start: Operation not permitted
Feb 19 04:02:05 linuxhelp systemd[1]: asterisk.service: Supervising process 1062 which is not our child. We'll most likely not notice when it exits.
Feb 19 04:02:05 linuxhelp systemd[1]: Started LSB: Asterisk PBX.

Step 3: For enabling ARI, First move to the Asterisk directory by using the below command

[root@linuxhelp ~]# cd /etc/asterisk/
[root@linuxhelp asterisk]#

Step 4: Edit ari.conf file by using the below command

[root@linuxhelp asterisk]# vim ari.conf
Check for the following line 
enabled=yes
Add the following lines in the ari.conf file
[asterisk]
type=user
read_only=no
password=Linuxc#4
password_format=plain

Step 5: Now ARI has been enabled, need to configure http on asterisk, edit http.conf file in the asterisk directory by using the below command

[root@linuxhelp asterisk]# vim http.conf
Check the following lines in the http.conf file and enter the values like below lines
[general]
enabled=yes
bindaddr=0.0.0.0
bindport=8088

Step 6: Now Login to the Asterisk CLI Mode by using the below command

[root@linuxhelp asterisk]# asterisk -rvvvvvvvvvvvvv
Asterisk 20.5.0, Copyright (C) 1999 - 2022, Sangoma Technologies Corporation and others.
Created by Mark Spencer <markster@digium.com>
Asterisk comes with ABSOLUTELY NO WARRANTY; type 'core show warranty' for details.
This is free software, with components licensed under the GNU General Public
License version 2 and other licenses; you are welcome to redistribute it under
certain conditions. Type 'core show license' for details.
=========================================================================
Connected to Asterisk 20.5.0 currently running on linuxhelp (pid = 6223)
linuxhelp*CLI> 

Step 7: Check the ARI status by using the below command

linuxhelp*CLI> module load res_stasis.so
Loaded res_stasis.so
  == Message handler 'ari' registered.
 Loaded res_stasis.so => (Stasis application support)
linuxhelp*CLI> module load res_ari
Loaded res_ari
 Loaded res_ari.so => (Asterisk RESTful Interface)
linuxhelp*CLI> ari show status
ARI Status:
Enabled: Yes
Output format: compact
Auth realm: Asterisk REST Interface
Allowed Origins:
User count: 1

Step 8: Check the http status by using the below command

linuxhelp*CLI> http show status
HTTP Server Status:
Prefix:
Server: Asterisk
Server Disabled

Enabled URI's:
/httpstatus => Asterisk HTTP General Status
/ari/... => Asterisk RESTful API
/ws => Asterisk HTTP WebSocket

Enabled Redirects:
  None.