I am trying to run an Express API server with sudo permissions and have it automatically start on boot.
The API needs access to bcm2835 library, and I get the following when trying to run node server.js
bcm2835_init: Unable to open /dev/mem: Permission denied /home/pi/Documents/node_modules/rpio/lib/rpio.js:104
return bindfunc(optarg);Error: Could not initialize bcm2835 library
at bindcall (/home/pi/...) etc.
However it boots up fine running sudo node server.js.
I have created a service file at /etc/systemd/system as follows:
[Unit]
Description=Node API
After=network.target
[Service]
ExecStart=/usr/bin/node /home/pi/Documents/server.js
Restart=always
SyslogIdentifier=controller
User=root
Group=root
Environment=
TimeoutStopSec=30
[Install]
WantedBy=multi-user.target
I found some guidance here and here, but they seem slightly off, since a sub-command needs sudo/root privileges.
When running service controller start
from the command line it prompts for a username and password.
How can I run this service with proper permissions so it boots up with the Pi?
server.js
is my script that calls/home/pi/Documents/node_modules/rpio/lib/rpio.js
– Matthew Nov 1 '18 at 19:48