you-died

Decently exit your Node.js application when it is interrupted.

Motivation

I need to do an asynchronous cleanup action on exit, none of the modules worked for me:

• exit-hook
• async-exit-hook
• death
• node-cleanup

So I tried it myself, and finally found this:

process.once('uncaughtException', async () => {
  await cleanup()

  process.exit(0)
})

process.once('SIGINT', () => { throw new Error() })

Install

npm install --save you-died
# or
yarn add you-died

Usage

import youDied from 'you-died'
// or whatever name you feel is decent.

const cancel1 = youDied(async () => {
  await cleanup1()
})

const cancel2 = youDied(async () => {
  await cleanup2()
})

Under the hood

This module listens to these events:

• uncaughtException
• SIGINT
• SIGTERM
• SIGBREAK

Signal event handlers will throw an error named Signal, which is caught by the uncaughtException handler.

API

youDied

function youDied(cleanup: () => void | PromiseLike<void>): () => void

You can call this function multiple times, and the cleanup function will run sequentially.