index.js

'use strict';
const path = require('path');
const {app, BrowserWindow, Menu} = require('electron');
/// const {autoUpdater} = require('electron-updater');
const {is} = require('electron-util');
const unhandled = require('electron-unhandled');
const debug = require('electron-debug');
const contextMenu = require('electron-context-menu');
const {ipcMain} = require('electron');
const isDev = require("electron-is-dev");
const psList = require('ps-list');
const fkill = require('fkill');

unhandled();
debug();
contextMenu();

// Note: Must match `build.appId` in package.json
app.setAppUserModelId('com.company.AppName');

// Uncomment this before publishing your first version.
// It's commented out as it throws an error if there are no published versions.
// if (!is.development) {
// 	const FOUR_HOURS = 1000 * 60 * 60 * 4;
// 	setInterval(() => {
// 		autoUpdater.checkForUpdates();
// 	}, FOUR_HOURS);
//
// 	autoUpdater.checkForUpdates();
// }

// Prevent window from being garbage collected
let mainWindow;

const createMainWindow = async () => {
	const win = new BrowserWindow({
        titleBarStyle: 'hidden',
		show: false,
		width: 600,
		height: 400,
        webPreferences: {
            nodeIntegration: true
        }
	});

	win.on('ready-to-show', () => {
		win.show();
	});

	win.on('closed', () => {
		// Dereference the window
		// For multiple windows store them in an array
		mainWindow = undefined;
	});

    await win.loadURL(
        isDev
            ? "http://localhost:3000"
            : `file://${path.join(__dirname, "./build/index.html")}`
    );

	return win;
};

// Prevent multiple instances of the app
if (!app.requestSingleInstanceLock()) {
	app.quit();
}

app.on('second-instance', () => {
	if (mainWindow) {
		if (mainWindow.isMinimized()) {
			mainWindow.restore();
		}

		mainWindow.show();
	}
});

app.on('window-all-closed', () => {
	if (!is.macos) {
		app.quit();
	}
});

app.on('activate', async () => {
	if (!mainWindow) {
		mainWindow = await createMainWindow();
	}
});

(async () => {
	await app.whenReady();
	mainWindow = await createMainWindow();

    ipcMain.on('request-tasklist-message', async (event) => {
        const processList = await psList();
        event.reply('request-tasklist-reply', processList)
    });

    ipcMain.on('kill-process', async (event, arg) => {
        try {
            await fkill(arg);
            event.reply('kill-process-success');
        } catch (e) {
            event.reply('kill-process-error');
        }

    });
})();