Error: "GOOGLE_APPLICATION_CREDENTIALS" environment variable must be set to path of the file containing service account json key about drachtio-freeswitch-modules HOT 2 OPEN

That log means that the environment variable has not been set -- at least not for the freeswitch process.

The best place to set the environment variable -- where I set it -- is in the systemd config file that manages freeswitch:

[Unit]
Description=freeswitch
After=syslog.target network.target local-fs.target

[Service]
; service
Type=forking
PIDFile=/usr/local/freeswitch/run/freeswitch.pid
EnvironmentFile=-/etc/default/freeswitch
Environment="LD_LIBRARY_PATH=/usr/local/lib"
Environment="GOOGLE_APPLICATION_CREDENTIALS=/home/admin/credentials/gcp.json"
ExecStart=/usr/local/freeswitch/bin/freeswitch -nc -nonat

from drachtio-freeswitch-modules.

That log means that the environment variable has not been set -- at least not for the freeswitch process.

The best place to set the environment variable -- where I set it -- is in the systemd config file that manages freeswitch:

[Unit]
Description=freeswitch
After=syslog.target network.target local-fs.target

[Service]
; service
Type=forking
PIDFile=/usr/local/freeswitch/run/freeswitch.pid
EnvironmentFile=-/etc/default/freeswitch
Environment="LD_LIBRARY_PATH=/usr/local/lib"
Environment="GOOGLE_APPLICATION_CREDENTIALS=/home/admin/credentials/gcp.json"
ExecStart=/usr/local/freeswitch/bin/freeswitch -nc -nonat

Thanks for your help .it work on my freeswitch too.

from drachtio-freeswitch-modules.