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 a application that i usually run as npm start. So how can i run it using forever ?

I follow this SO but getting this error:

ENVIRONMENT=production forever start app.js
warn:    --minUptime not set. Defaulting to: 1000ms
warn:    --spinSleepTime not set. Your script will exit if it does not stay up for at least 1000ms
info:    Forever processing file: app.js

apart of this Is there any other better way to run nodejs in background ?

i don't see an error, just warnings....?

Alex
– Alex

2014-12-03 14:20:54 +00:00
Commented Dec 3, 2014 at 14:20 — Alex
– Alex, Commented Dec 3, 2014 at 14:20

alandarev · Accepted Answer · 2015-12-13 10:50:21Z

30

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.

edited Dec 13, 2015 at 10:50

answered Dec 3, 2014 at 14:57

alandarev

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1 Comment

zephinzer Over a year ago

For anyone seeing this who's using express-generator and starts their application using "npm start", replace "app.js" with "`pwd`/bin/www"

Nisharg Shah · Accepted Answer · 2022-07-09 14:41:27Z

17

In 2022

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" ./

edited Jul 9, 2022 at 14:41

answered Aug 1, 2020 at 20:15

Nisharg Shah

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Comments

Sayan Saha · Accepted Answer · 2017-04-06 10:48:22Z

-1

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>

answered Apr 6, 2017 at 10:48

Sayan Saha

19

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