paxti/index.js

## index.js
const {BrowserWindow, app, protocol, ipcMain} = require('electron');
const env = require('../env');
const path = require('path')

var mainWindow = null;
function _generateResponse () {
    return `
        <html>
            <head></head>
            <body>
                <h1>Authentication Complete</h1>
                <p>You can close this page now</p>
            </body>
        </html>
    `;
}

const isSecondInstance = app.makeSingleInstance((args, _) => {

    mainWindow.webContents.executeJavaScript(`
        window.handleOpenURL('${args[2]}');
    `);

    if (mainWindow) {
        if (mainWindow.isMinimized()) mainWindow.restore()
            mainWindow.focus()
        }
    }
)

if (isSecondInstance) {
    app.quit()
}

app.on('ready', function() {
    mainWindow = new BrowserWindow({
        height: 600,
        width: 800
    });
    mainWindow.loadURL('file://' + __dirname + '/app/index.html');
    mainWindow.webContents.openDevTools();

    if (process.defaultApp) {
      if (process.argv.length >= 2) {
        app.setAsDefaultProtocolClient(env.packageIdentifier, process.execPath, [path.resolve(process.argv[1])])
      }
    } else {
      app.setAsDefaultProtocolClient(env.packageIdentifier)
    }

    app.on('open-url', function(event, url){
        mainWindow.webContents.executeJavaScript(`
            window.handleOpenURL('${url}');
        `);
    });
});
	const {BrowserWindow, app, protocol, ipcMain} = require('electron');
	const env = require('../env');
	const path = require('path')

	var mainWindow = null;
	function _generateResponse () {
	return `
	<html>
	<head></head>
	<body>
	<h1>Authentication Complete</h1>
	<p>You can close this page now</p>
	</body>
	</html>
	`;
	}

	const isSecondInstance = app.makeSingleInstance((args, _) => {

	mainWindow.webContents.executeJavaScript(`
	window.handleOpenURL('${args[2]}');
	`);

	if (mainWindow) {
	if (mainWindow.isMinimized()) mainWindow.restore()
	mainWindow.focus()
	}
	}
	)

	if (isSecondInstance) {
	app.quit()
	}

	app.on('ready', function() {
	mainWindow = new BrowserWindow({
	height: 600,
	width: 800
	});
	mainWindow.loadURL('file://' + __dirname + '/app/index.html');
	mainWindow.webContents.openDevTools();

	if (process.defaultApp) {
	if (process.argv.length >= 2) {
	app.setAsDefaultProtocolClient(env.packageIdentifier, process.execPath, [path.resolve(process.argv[1])])
	}
	} else {
	app.setAsDefaultProtocolClient(env.packageIdentifier)
	}

	app.on('open-url', function(event, url){
	mainWindow.webContents.executeJavaScript(`
	window.handleOpenURL('${url}');
	`);
	});
	});