How to execute command from node application

I need to call to CMD command from my node JS application , is it possible ?

I try with the following (POC) and I got error

var express = require('express');
var app = express();

app.get('/', function (req, res) {
    function cmd_exec(cmd, args, cb_stdout, cb_end) {
        var spawn = require('child_process').spawn,
            child = spawn(cmd, args),
            me = this;
        me.exit = 0;  // Send a cb to set 1 when cmd exits
        child.stdout.on('data', function (data) {
            cb_stdout(me, data)
        });
        child.stdout.on('end', function () {
            cb_end(me)
        });
    }
    foo = new cmd_exec('npm', 'install glob --save',
        function (me, data) {
            me.stdout += data.toString();
        },
        function (me) {
            me.exit = 1;
        }
    );

    setTimeout(
        // wait 0.25 seconds and print the output
        log_console,
        250);


    function log_console() {
        console.log(foo.stdout);
    }
    res.send("Hello world");
});

I saw this code in the following link

node.js shell command execution

The error is : TypeError: Incorrect value of args option in line child = spawn(cmd, args),

what am I doing wrong here ?Currnlty I just use the npm install command(just for testing) but any other command that I can execute and run will be sufficient