Simple proof of concept for nodejs SIGINT capture

index.js

let waiting = false
process.on('SIGINT', () => {
    console.log('CTRL+C detected!')
    if (!waiting) {
        waiting = true
    } else {
        console.log('Was waiting, so exiting now')
        process.exit(0)
    }
    setTimeout(() => process.exit(0), 2000)
})

setTimeout(() => {
    console.log('WAITING FINISHED')
}, 100000)