How to execute 'npm run' command programmatically?

I have some custom testing script, which I can run with npm run test command, which executes some Node script for starting e2e/unit tests. But before it I must start webpack dev server with npm run dev (it's a some custom Node script too, details doesn't matter) in other terminal window. So, I want to omit npm run dev manually executing and move it to custom npm run test script, i.e. I want to execute webpack dev server programmatically in Node script. How can I execute npm run dev programmatically using Node script and stop it then? Thanks in advance!

"dev": "node node_modules/webpack-dev-server/bin/webpack-dev-server.js --host 0.0.0.0 --history-api-fallback --debug --inline --progress --config config/config.js"

Solution 1:

You can use exec to run from script

import {series} from 'async';
const {exec} = require('child_process');

series([
 () => exec('npm run dev'),
 () => exec('npm run test')
]); 

Solution 2:

Just install npm:

npm install npm

Then in your program:

npm.commands.run('dev', (err) => { ... });

See the source for more info. The npm.command object is an unofficial API for npm. Note that using exec or spawn to execute npm is safer, since the API is unofficial.

Solution 3:

Here is a solution that should work reliably across all platforms. It's also very concise. Put this into build.js, then run node build.

const {execSync} = require('child_process')

execSync("npm run clean")
execSync("npm run minify")
execSync("npm run build_assets")

It will immediately abort on abnormal npm termination.