@remote.it/core/src/EventRelay.ts

Core remote.it JavasScript/TypeScript library

import { EventEmitter } from 'events'

/**
 * Forward a set of events from one EventEmitter to another.
 */
export class EventRelay {
  constructor(
    events: string[],
    from: EventEmitter,
    to: EventEmitter,
    nameCallback: (name: string) => string = name => name
  ) {
    events.map(event =>
      from.on(event, (...args: any[]) => to.emit(nameCallback(event), ...args))
    )
  }
}