electron-development

// preload.js
const { contextBridge, ipcRenderer } = require('electron');
 
contextBridge.exposeInMainWorld('electronAPI', {
  sendMessage: (channel, data) => {
    const validChannels = ['toMain'];
    if (validChannels.includes(channel)) {
      ipcRenderer.send(channel, data);
    }
  },
  onMessage: (channel, callback) => {
    const validChannels = ['fromMain'];
    if (validChannels.includes(channel)) {
      ipcRenderer.on(channel, (event, ...args) => callback(...args));
    }
  }
});

<meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'">

const { ipcMain } = require('electron');
 
ipcMain.handle('read-file', async (event, filePath) => {
  const content = await fs.promises.readFile(filePath, 'utf-8');
  return content;
});
 
ipcMain.on('save-file', (event, { path, content }) => {
  fs.writeFileSync(path, content);
  event.reply('file-saved', { success: true });
});

// Using exposed API from preload
const content = await window.electronAPI.readFile('/path/to/file');

const { BrowserWindow } = require('electron');
 
function createWindow() {
  const win = new BrowserWindow({
    width: 1200,
    height: 800,
    minWidth: 800,
    minHeight: 600,
    webPreferences: {
      contextIsolation: true,
      preload: path.join(__dirname, 'preload.js')
    }
  });
 
  // Handle window events
  win.on('closed', () => {
    // Cleanup
  });
 
  // Load content
  if (process.env.NODE_ENV === 'development') {
    win.loadURL('http://localhost:3000');
    win.webContents.openDevTools();
  } else {
    win.loadFile('dist/index.html');
  }
}

const { autoUpdater } = require('electron-updater');
 
autoUpdater.on('update-available', () => {
  // Notify user
});
 
autoUpdater.on('update-downloaded', () => {
  autoUpdater.quitAndInstall();
});
 
app.whenReady().then(() => {
  autoUpdater.checkForUpdatesAndNotify();
});