Electron.NET/ElectronNET.Host/main.js

const { app, BrowserWindow, Notification } = require('electron');
const io = require('socket.io')(3000);
const path = require('path');

let window;
let apiProcess;

app.on('ready', () => {
    const process = require('child_process').spawn;

    //  run server
    // ToDo: The .exe name may vary. The most simple solution would be to locate the first .exe in the given directory
    var apipath = path.join(__dirname, '\\bin\\ElectronNET.WebApp.exe /electronized=true');
    apiProcess = process(apipath);

    apiProcess.stdout.on('data', (data) => {
        var text = data.toString();
        console.log(`stdout: ${data.toString()}`);
    });
});

io.on('connection', (socket) => {
    console.log('ASP.NET Core Application connected...');

    socket.on('createBrowserWindow', (options) => {
        console.log(options);
        options.show = true;

        window = new BrowserWindow(options);
        window.loadURL('http://localhost:5000');

        window.on('closed', function () {
            mainWindow = null;
            apiProcess = null;
        });
    });

    socket.on('createNotification', (options) => {
        const notification = new Notification(options);
        notification.show();
    });
});

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

app.on('activate', () => {
    // 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.
    if (win === null) {
        createWindow();
    }
});