How to monitor Express (Node.js) processes?

Question

System administration

Good afternoon!
I wondered how to monitor my Node.js and in particular Express applications.
Those. I would like to know:
* All process statistics (Env, CPU free, Mem free, etc).
* Http response statistics (200, 500)
* Average response time
* System load
* Possibly letansi to the
base
PS I don't really welcome paid options, it's better if this monitoring can be deployed on a second machine.

Answer 1

pm2.keymetrics.io seems to be the most advanced one out there.

Answer 2

Actually, I used Zabbix for monitoring, but how to tie it to Node is another question.

Answer 3

newrelic