electron/lib/renderer/api/ipc-renderer.ts

const { ipc } = process.electronBinding('ipc')
const v8Util = process.electronBinding('v8_util')

// Created by init.js.
const ipcRenderer = v8Util.getHiddenValue<Electron.IpcRenderer>(global, 'ipc')
const internal = false

ipcRenderer.send = function (channel, ...args) {
  return ipc.send(internal, channel, args)
}

ipcRenderer.sendSync = function (channel, ...args) {
  return ipc.sendSync(internal, channel, args)[0]
}

ipcRenderer.sendToHost = function (channel, ...args) {
  return ipc.sendToHost(channel, args)
}

ipcRenderer.sendTo = function (webContentsId, channel, ...args) {
  return ipc.sendTo(internal, false, webContentsId, channel, args)
}

ipcRenderer.invoke = async function (channel, ...args) {
  const { error, result } = await ipc.invoke(internal, channel, args)
  if (error) {
    throw new Error(`Error invoking remote method '${channel}': ${error}`)
  }
  return result
}

ipcRenderer.postMessage = function (channel: string, message: any, transferables: any) {
  return ipc.postMessage(channel, message, transferables)
}

export default ipcRenderer