nodejs forever : How to run my npm application

Question

Right now i am runnign my nodejs application as npm start. i want to run it in background. I found forever package for this but dont know how can i run

Answer 1

In 2020

Use forever npm package ( https://www.npmjs.com/package/forever )

forever start -c "npm <command>" /path/to/app/dir/

EXAMPLE

./ means current directory

forever start -c "npm start" ./

Answer 2

For Linux Use terminal and enter in superuser mode, and try these code

$ nohup node <location of of js file> &
$ exit

Note: This '&' is must before you press enter

or for npm command, just goto the location by cd command where your package.json is stored. Then

$ nohup npm start &
$ exit

Note: This '&' is must before you press enter

To stop it

$ top

You can see process id here, then use following code

$ kill -9 <PROCESS_ID>

Answer 3

You are doing it right.

The warnings are just reminding you that some essential information is missing, so it assigns the defaults. To be exact, if your script crashes/exits sooner than a second after start, forever will exit as well.

---

If you would like to get rid of those warnings:

forever start --minUptime 1000 --spinSleepTime 1000 app.js 

---

Furthermore, you can open the package.json file, find the:

  "scripts": {
    "start": "node app.js"
  },

and change it to:

  "scripts": {
    "start": "forever start --minUptime 1000 --spinSleepTime 1000 app.js",
    "stop":  "forever stop app.js"
  },

Now you can use npm start and it will invoke forever automatically.