electron/preload/index.ts

import { ipcRenderer, contextBridge, type IpcRendererEvent } from 'electron';

console.debug('start preload.', ipcRenderer);

const ipc = {
  invoke(...args: any[]) {
    return ipcRenderer.invoke('ipcTest', ...args);
  },
  // eslint-disable-next-line @typescript-eslint/no-unsafe-function-type
  on(channel: string, func: Function) {
    const f = (event: IpcRendererEvent, ...args: any[]) => func(...[event, ...args]);
    console.debug('register listener', channel, f);
    ipcRenderer.on(channel, f);

    return () => {
      console.debug('remove listener', channel, f);
      ipcRenderer.removeListener(channel, f);
    };
  },
};

contextBridge.exposeInMainWorld('ipc', ipc);