is it possible to run npm script from Javascript

Question

My unbuild node.js project is on a file server and I want to execute the npm script "build" which should build the application. But I can't find a way to call this command through code. Does anyone know if this should be possible? When I try to search for a result I keep finding tutorials on how npm script work, which is not what I want to know. Is it possble to run an npm script (command?) from code?

You may want to look at the spawn command under the child_process module in nodejs docs. — darklightcode
– darklightcode, Commented Jan 7, 2020 at 13:49

Lord Elrond · Accepted Answer · 2020-01-07 13:51:25Z

8

You can use child_process.exec to execute a script:

var exec = require('child_process').exec;

var cmd = exec("npm build", function(err, stdout, stderr) {
  if (err) {
    // handle error
  }
  console.log(stdout);
});

dir.on('exit', function (code) {
    // return value from "npm build"
});

answered Jan 7, 2020 at 13:51

Lord Elrond

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1 Comment

user2912900 Over a year ago

Unfortunately I can't seem to use the child_process package, in my code completion it shows all its funtions but when I run it I get an error that the module cannot be found. Yet I think this should work if child_process could be found.

ROOT · Accepted Answer · 2020-01-07 13:42:56Z

1

you can use concurrently npm package, it allow managing your npm scripts and provides API to call npm-scripts from inside your Node app project, check programmatic-usage section.

answered Jan 7, 2020 at 13:42

ROOT

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