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Interface for communication with parent process.

Process: Utility

parentPort é um EventEmitter. This object is not exported from the 'electron' module. It is only available as a property of the process object in the Electron API.

// Main process
const child = utilityProcess.fork(path.join(__dirname, 'test.js'))
child.postMessage({ message: 'hello' })
child.on('message', (data) => {
console.log(data) // hello world!

// Child process
process.parentPort.on('message', (e) => {
process.parentPort.postMessage(`${} world!`)


O objeto parentPort emite os seguintes eventos:

Event: 'message'


  • messageEvent Object
    • data any
    • ports MessagePortMain[]

Emitted when the process receives a message. Messages received on this port will be queued up until a handler is registered for this event.



  • message any

Sends a message from the process to its parent.