Pigpio startup error

[Abasz]

Sometimes when I do frequent restart of the app I get pigpio initialize error. ˙

2023-01-01 17:40:12 initInitialise: Can't lock /var/run/pigpio.pid
/opt/openrowingmonitor/node_modules/pigpio/pigpio.js:54
    pigpio.gpioInitialise();
           ^

Error: pigpio error -1 in gpioInitialise
    at initializePigpio (/opt/openrowingmonitor/node_modules/pigpio/pigpio.js:54:12)
    at new Gpio (/opt/openrowingmonitor/node_modules/pigpio/pigpio.js:158:5)
    at createGpioTimerService (file:///opt/openrowingmonitor/app/gpio/GpioTimerService.js:40:18)
    at file:///opt/openrowingmonitor/app/gpio/GpioTimerService.js:69:1

Based on some research this may be due to pigpio not shutting down cleanly. The recommendation is add a listener to the process exit codes where the pigpio.terminate() should be called:

process.on('SIGHUP', shutdown)
process.on('SIGINT', shutdown)
process.on('SIGCONT', shutdown)
process.on('SIGTERM', shutdown)

function shutdown () {
  pigpio.terminate()
  process.exit(0)
}

Has anyone encountered this issue?