Which events should I use for spawning a child process to ensure I always make a callback

Question

I'm using node to wrap an executable and I'm using the spawn event emitter. See the docs here. There are multiple events to subsribe to.

child = spawn("path/to/exe", args)
child.on('close', exitNormally )
child.on('exit', exitNormally )
child.on('error', exitAbnormally )
child.on('disconnect', exitAbnormally )

Should I be subscribing to all of them or is subscribing to close and error enough? I have a callback that I have to execute regardless of whether the outcome is a success or not. The docs for the events are here but it doesn't seem to say explictly say what I'm asking and I want to confirm that my thinking is correct and I don't miss any exits.

Answer 1

The exit event always will be called if your process ends, so I think it will be enough.