Running npm install in another directory through node.js

Question

I'm trying to run npm i in another directory from my node.js application. The reason for this is because there is a child process that is spawned in that directory. The parent app is on user's systems, so they cannot be expected to run npm i when new updates are pushed. I can copy the package.json to each directory where child processes could run, so that running install manually there would install the needed dependencies.

Does this answer your question? [npm - install dependencies for a package in a different folder?](https://stackoverflow.com/questions/13498403/npm-install-dependencies-for-a-package-in-a-different-folder) — Marwi, Oct 29 '20 at 20:23
@MarwanAmireh that is for installing via command line. I need to be able to do it programmatically through code. — Austin, Oct 29 '20 at 20:24

score 0 · Answer 1 · answered Oct 29 '20 at 20:29

Are you attempting something like this?

var cwd = __dirname;

var Proc = require ("child_process").exec (
    "npm i", 
    {
        shell: "/bin/sh",
        stdio: [ 'pipe', 'pipe', 'pipe'],
        cwd
    }
);

Proc.stdout.on ("data", function (data) {
    process.stdout.write (data.toString ());
});

Proc.stderr.on ('data', function (data) {
    process.stderr.write (data.toString ());
});

Proc.on ('close', (code) => {
    console.log (`close: ${code}`);
});

Close, this got on me on the right track. I posted my solution below. — Austin, Oct 30 '20 at 03:50

score 0 · Answer 2 · answered Oct 30 '20 at 03:50

0

Here's what ended up working:

var Proc = child_process.exec ('npm i', {
            cwd: '/path/to/folder/to/run/in'
          }, function(error, stdout, stderr) {

          });

answered Oct 30 '20 at 03:50

Austin

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Running npm install in another directory through node.js

2 Answers2