forgot this one too

main.ts

+import { app, BrowserWindow, screen, ipcMain, IpcMainEvent } from 'electron';
+import * as path from 'path';
+import * as url from 'url';
+import * as fs from 'fs';
+import * as YAML from 'yaml';
+import * as child from 'child_process';
+import * as temp from 'tmp';
+
+let win: BrowserWindow = null;
+const args = process.argv.slice(1),
+  serve = args.some(val => val === '--serve');
+let lastUrl: string = null;
+console.log('resources path', __dirname );
+var config: any;
+let configPath = path.join(app.getPath('userData'),'localConfig.yml');
+try {
+  config = YAML.parse(fs.readFileSync(configPath).toString());
+} catch {
+  console.log(`please create a config file at ${configPath}`)
+
+}
+//let config = YAML.parse(fs.readFileSync(path.join(__dirname,'localConfig.yml')).toString())
+function createWindow(): BrowserWindow {
+
+  const electronScreen = screen;
+  const size = electronScreen.getPrimaryDisplay().workAreaSize;
+
+  // Create the browser window.
+  win = new BrowserWindow({
+    x: 0,
+    y: 0,
+    width: size.width,
+    height: size.height,
+    webPreferences: {
+      nodeIntegration: true,
+      allowRunningInsecureContent: (serve) ? true : false,
+      contextIsolation: false,  // false if you want to run 2e2 test with Spectron
+      enableRemoteModule : true // true if you want to run 2e2 test  with Spectron or use remote module in renderer context (ie. Angular)
+    },
+  });
+
+  if (serve) {
+
+    win.webContents.openDevTools();
+
+    require('electron-reload')(__dirname, {
+      electron: require(`${__dirname}/node_modules/electron`)
+    });
+    win.loadURL('http://localhost:4200');
+
+  } else {
+    win.loadURL(url.format({
+      pathname: path.join(__dirname, 'dist/index.html'),
+      protocol: 'file:',
+      slashes: true
+    }));
+  }
+
+  // Emitted when the window is closed.
+
+  win.on('closed', () => {
+    // Dereference the window object, usually you would store window
+    // in an array if your app supports multi windows, this is the time
+    // when you should delete the corresponding element.
+    win = null;
+  });
+
+  const redirectUri = 'http://localhost:4200/sshauthz_callback'
+  const filter = {
+     urls: [redirectUri + '*']
+  };
+  win.webContents.session.webRequest.onBeforeRequest(filter, function(details, callback) {
+   
+      win.loadURL(url.format({
+        pathname: path.join(__dirname, 'dist/index.html'),
+        protocol: 'file:',
+        slashes: true
+      }));
+      
+      win.webContents.on('did-finish-load', () => {
+        if (lastUrl != details.url) {
+          console.log('sending oauth2-redirect with ',details.url);
+          console.log(details);
+          win.webContents.send('oauth2-redirect',details.url);
+          lastUrl = details.url;
+        }
+      })
+      callback({ cancel: false });
+  });
+
+
+  return win;
+}
+
+try {
+  // This method will be called when Electron has finished
+  // initialization and is ready to create browser windows.
+  // Some APIs can only be used after this event occurs.
+  // Added 400 ms to fix the black background issue while using transparent window. More detais at https://github.com/electron/electron/issues/15947
+  app.on('ready', () => setTimeout(createWindow, 400));
+
+  // Quit when all windows are closed.
+  app.on('window-all-closed', () => {
+    // On OS X 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();
+    }
+  });
+  ipcMain.on('addCert', async (event: IpcMainEvent,data: any) => await addCert(event, data))
+  console.log('ipcMain on set');
+  app.on('activate', () => {
+    // On OS X 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();
+
+    }
+  });
+  
+
+} catch (e) {
+  // Catch Error
+  // throw e;
+}
+
+async function addCert(event: IpcMainEvent, data: any) {
+
+  console.log('adding Cert', data)
+  let tmpfile = temp.fileSync();
+  let path = tmpfile.path;
+  fs.writeFileSync(`${path}`,data.key, {encoding: 'utf8', mode: 0o600 });
+  fs.writeFileSync(`${path}-cert.pub`,data.cert, {encoding: 'utf8', mode: 0o600 });
+  let sa = child.execSync(`${config['ssh-add']} ${path}`);
+  event.reply('addCertResponse',null);
+  fs.unlinkSync(`${path}`);
+  fs.unlinkSync(`${path}-cert.pub`);
+
+}
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