app.js

const { app, BrowserWindow } = require('electron')
const path = require('path')  

if(handleSquirrelEvent(app))
{
  return;
}

function handleSquirrelEvent(application) {
  if (process.argv.length === 1) {
      return false;
  }

  const ChildProcess = require('child_process');

  const appFolder = path.resolve(process.execPath, '..');
  const rootAtomFolder = path.resolve(appFolder, '..');
  const updateDotExe = path.resolve(path.join(rootAtomFolder, 'Update.exe'));
  const exeName = path.basename(process.execPath);

  const spawn = function(command, args) {
      let spawnedProcess, error;

      try {
          spawnedProcess = ChildProcess.spawn(command, args, {
              detached: true
          });
      } catch (error) {}

      return spawnedProcess;
  };

  const spawnUpdate = function(args) {
      return spawn(updateDotExe, args);
  };

  const squirrelEvent = process.argv[1];
  switch (squirrelEvent) {
      case '--squirrel-install':
      case '--squirrel-updated':
          // Optionally do things such as:
          // - Add your .exe to the PATH
          // - Write to the registry for things like file associations and
          //   explorer context menus

          // Install desktop and start menu shortcuts
          spawnUpdate(['--createShortcut', exeName]);

          setTimeout(application.quit, 1000);
          return true;

      case '--squirrel-uninstall':
          // Undo anything you did in the --squirrel-install and
          // --squirrel-updated handlers

          // Remove desktop and start menu shortcuts
          spawnUpdate(['--removeShortcut', exeName]);

          setTimeout(application.quit, 1000);
          return true;

      case '--squirrel-obsolete':
          // This is called on the outgoing version of your app before
          // we update to the new version - it's the opposite of
          // --squirrel-updated

          application.quit();
          return true;
  }
}

  function createWindow () {
    win = new BrowserWindow({ width: 1366, height: 768,icon:path.join(__dirname,'/src/static/icon.png')})
    win.setMenuBarVisibility(false);
    win.loadFile(path.join(__dirname,'/dist/index.html'))

  }
  
  app.on('ready', createWindow)