RenaiApp/src/main/controllers/api.ts

import { ipcMain } from 'electron';
import nhentai from './../services/nhentai-crawler';

ipcMain.on(IpcChannels.Credentials, (event: IpcEvent, args: ICredentials) => {
  nhentai
    .login(args.name, args.password)
    .then(() => {
      console.log('success');
    })
    .catch(() => {
      console.log('fail');
    });
});