[Home](./index.md) > [@empathyco/x-components](./x-components.md) > [XPriorityBus](./x-components.xprioritybus.md) > [emit](./x-components.xprioritybus.emit.md) ## XPriorityBus.emit() method Emits an event. See [XBus.emit](./x-components.xbus.emit.md). **Signature:** ```typescript emit(event: SomeEvent, payload?: EventPayload, metadata?: SomeEventMetadata): Promise>; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | event | SomeEvent | Event to be emitted. | | payload | [EventPayload](./x-components.eventpayload.md)<SomeEvents, SomeEvent> | _(Optional)_ Event payload. | | metadata | SomeEventMetadata | _(Optional)_ Extra event data. | **Returns:** Promise<[EmittedData](./x-components.emitteddata.md)<SomeEvents, SomeEvent, SomeEventMetadata>> A promise that is resolved the moment the event is emitted.