main.js

// Modules to control application life and create native browser window
const { app, BrowserWindow } = require('electron');
const path = require('path');
require('./server/app');

const width = 1280;
const height = 800;

process.env.ELECTRON_DISABLE_SECURITY_WARNINGS = 'true';

const isDev = process.env.NODE_ENV === 'development';

let mainWindow;

function createWindow() {
  // Create the browser window.
  mainWindow = new BrowserWindow({
    width,
    height,
    minWidth: width,
    minHeight: height,
    titleBarStyle: 'hiddenInset',
    webPreferences: {
      devTools: true,
      // preload: path.join(__dirname, 'preload.js'),
    },
  });

  // and load the index.html of the app.
  // mainWindow.loadFile(`file://${__dirname}/build/index.html`);
  mainWindow.loadFile(path.join(__dirname, '/build/index.html'));

  mainWindow.webContents.once('dom-ready', () => {
    const args = process.argv.slice(2);
    if (args[0] === 'devtools' && isDev) mainWindow.webContents.openDevTools();
  });
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  createWindow();
  // On macOS it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  app.on('activate', () => {
    if (BrowserWindow.getAllWindows().length === 0) createWindow();
  });
});

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') app.quit();
});

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.