documentation/Examples/Debian/Install Node.js.md

About

https://nodejs.org/en

Procedure

1. Sign in as root user

2. Run apt install nodejs

   !!! info "Note"

    This command may install an older version of Node.
   

3. Run node --version to verify the installed version of Node.js

4. Run apt install npm to install the Node package manager

5. Run npm install -g n to globally install the n Node version manager

6. Run n latest to fetch and install the latest version of Node.js

Optional

1. Install the PM2 daemon process manager globally via:

   npm install -g pm2
   

   This package allows daemonizing Node projects or shell scripts without the need to learn System V run levels, "init," or systemd services. For example, if we have a shell script that spawns a Java or Python-written server, you can use PM2 to host it:

   #!/bin/bash
   
   cd /root/myapp
   source ./venv/bin/activate
   python3 -u myapp.py
   

   1. Run cd /root/myapp

   2. Run pm2 start myapp.sh to daemonize myapp.sh with PM2

   3. Run pm2 startup to enable running PM2 at system startup

   4. Run pm2 save to save the current process list

   To view a list of all daemonized processes, run pm2 list. If your application crashes, PM2 will automatically restart your process, but may fail if the application is crashing in rapid succession. To view why, run pm2 log myapp.

About PM2

https://pm2.keymetrics.io/