Async Event Emitter

Library that partialy (for now) implements Node.js' events.EventEmitter interface but with asynchronous sugar.

Installation

npm i --save aeventemitter
# or
yarn add aeventemitter

Usage example

import AsyncEventEmitter from 'aeventemitter';

const eventEmitter = new AsyncEventEmitter();
const EVENT_NAME = 'event-name';

eventEmitter.on(EVENT_NAME, async (payload: any) => {
  // Do your staff
});

eventEmitter.on(EVENT_NAME, async (payload: any) => {
  // Do your another staff
});

const { succeeded, noHandlers, errors } = await eventEmitter.emit(EVENT_NAME, { test: 1 });

console.log(succeeded) // True if all handlers were proceeded
console.log(noHandlers) // True if no handlers for event
console.log(errors) // All errors that appears during event handlers execution

Roadmap

1. Implement whole events.EventEmitter's interface to be compatible with it.
2. Collect execution results like Promise.all
3. Add more tests