await-emitter

add finish method on node EventEmitter for waiting all aync listeners to finish.

npm install await-emitter

Usage

Create a emitter instance and put it in the context or inject into modules used it.

import Emitter from 'await-emitter'
 
const emitter = new Emitter()
 

Use emitter.finish to emit an event, you can waiting all listeners finish their work. Then do the next action.

await emitter.finish('flushCache')
await emitter.finish('saveData')
emitter.emit('saveDone')