generator-react-webpack-base/generators/app/templates/scripts/serve.js

A base template for a fullstack react webpack application

/*
* From React Starter Kit (http://www.reactstarterkit.com/)
*/
var path = require('path');
var cp = require('child_process');
var watch = '
import cp from 'child_process';
import watch from './lib/watch';

/**
 * Launches Node.js/Express web server in a separate (forked) process.
 */
function start() {
	const server = cp.spawn(
	'node',
	[path.join(__dirname, '../build/server.js')],
	{
	  env: Object.assign({ NODE_ENV: 'development' }, process.env),
	  silent: false,
	}
	);
	server.stdout.on('data', data => {
	let time = new Date().toTimeString();
	time = time.replace(/.*(\d{2}:\d{2}:\d{2}).*/, '$1');
	process.stdout.write(`[${time}] `);
	process.stdout.write(data);
	if (data.toString('utf8').includes('The server is running at')) {
	  resolve();
	}
	});
	server.stderr.on('data', data => process.stderr.write(data));
	process.on('exit', () => server.kill('SIGTERM'));
	return server;
}

let server = start();

if (global.WATCH) {
  watch('build/server.js').then(watcher => {
	watcher.on('changed', () => {
	  server.kill('SIGTERM');
	  server = start();
	});
  });
}