how to Open electron app from browser in both windows and mac - reactjs

Question

const { app, BrowserWindow, ipcMain, dialog, screen,Tray } = require('electron');
try {
require('electron-reloader')(module)
} catch (_) { }
const path = require('path')
let deeplinkingUrl;
let mainWindow;
const createWindow = () => {
let { width, height } = screen.getPrimaryDisplay().size
// Create the browser window.
mainWindow = new BrowserWindow({
width: width,
height: height,
minWidth: width,
minHeight: height,
productName: "abc",
copyright: "Copyright © 2022 ${author}",
// mac: {
// icon: "./img/abc_256x256px.ico"
// },
icon: __dirname + "/img/icon.ico",
// icon: "./img/abc_256x256px.ico",
webPreferences: {
preload: path.join(__dirname, 'preload.js'),
nodeIntegration: true,
contextIsolation: false,
devTools: false,
}
})
mainWindow.setClosable(false);
mainWindow.setMenuBarVisibility(false);
mainWindow.maximize();
mainWindow.setMovable(false);
mainWindow.setResizable(false);
if (process.platform == 'win32') {
// Keep only command line / deep linked arguments
deeplinkingUrl = process.argv.slice(1)
}
logEverywhere("createWindow# " + deeplinkingUrl)
// and load the index.html of the app.
mainWindow.loadFile('index.html')
// Open the DevTools.
// mainWindow.webContents.openDevTools()
//tray
let tray = null;
mainWindow.on('minimize', function (event) {
event.preventDefault();
mainWindow.hide();
tray = createTray();
});
mainWindow.on('restore', function (event) {
mainWindow.maximize();
mainWindow.show();
tray.destroy();
});
function createTray() {
let appIcon = new Tray(path.join(__dirname + "/img/icon.ico"));
appIcon.on('click', function (event) {
mainWindow.show();
});
appIcon.setToolTip('abc');
return appIcon;
}
}
app.whenReady().then(() => {
createWindow()
if (isDev && process.platform === 'win32') {
// Set the path of electron.exe and your app.
// These two additional parameters are only available on windows.
// Setting this is required to get this working in dev mode.
app.setAsDefaultProtocolClient('pro', process.execPath, [
resolve(process.argv[1])
]);
} else {
app.setAsDefaultProtocolClient('pro');
}
app.on('activate', () => {
if (BrowserWindow.getAllWindows().length === 0) createWindow()
})
app.on('open-url', function (event, url) {
event.preventDefault();
deeplinkingUrl = url;})
})
const gotTheLock = app.requestSingleInstanceLock();
if (!gotTheLock) {
app.quit();
return;
} else {
app.on('second-instance', (e, argv) => {
if (process.platform !== 'darwin') {
// Find the arg that is our custom protocol url and store it
deeplinkingUrl = argv.find((arg) => arg.startsWith('custom://'));
}
if (myWindow) {
if (myWindow.isMinimized()) myWindow.restore();
myWindow.focus();
}
});
}
app.on('window-all-closed', () => {
if (process.platform !== 'darwin') app.quit()
})
function logEverywhere(s) {
console.log(s)
if (mainWindow && mainWindow.webContents) {
mainWindow.webContents.executeJavaScript(`console.log("${s}")`)
}
}
//to allow self signed certificate
app.on('certificate-error', (event, webContents, url, error, certificate, callback) => {
// Verification logic.
event.preventDefault()
callback(true)
})
ipcMain.handle('download', async (someArgument) => {
const result = await download(someArgument)
return result;
})
const download = async (data) => {
let value = 100;
console.log(data.name)
dialog.showSaveDialog({
title: 'Select the File Path to save',
defaultPath: path.join(__dirname, data.name + '.p12'),
buttonLabel: 'Save',
filters: [
{
name: 'Personal Information Exchnage',
extensions: ['.p12']
}
],
properties: []
}).then((path) => {
value = 1;
console.log('success')
mainWindow.webContents.send('success', path);
}).catch((value) => {
value = 2;
mainWindow.webContents.send('failed', path);
console.log('error')
});
return value;
}
This code throws some error when I type 'pro://something' in the browser.
Erorr description: Error launching app, unable to find Electron app at C:\Windows\system32\pro:\something
I have also tried some other code which opens my app but in a different window.
I want to open the App but in the existing window of my app.