generator-oxy-gen/generators/app/templates/_electron-wait-react.js

Yeoman generator for Electron app with React and Rust (WASM).

const net = require('net');

const port = process.env.PORT ? (process.env.PORT - 100) : 3000;

process.env.ELECTRON_START_URL = `http://localhost:${port}`;

const client = new net.Socket();

let startedElectron = false;

const tryConnection = () => client.connect({port: port}, () => {

  client.end();

  if(!startedElectron) {
    console.log('starting electron');
    startedElectron = true;

    const exec = require('child_process').exec;
    exec('npm run electron');
  }
});

tryConnection();

client.on('error', (error) => {
  setTimeout(tryConnection, 1000);
});