How to require Node Events module in React Native

Question

How do I require the events Node module within my React Native project? I ran into some module dependency issues with util and http which I resolved by using Browserify to package.

I try to take the same approach with events:

npm install events

var EventEmitter = require('events').EventEmitter;

After packaging with Browserify, I still get the same error from React Native: "Requiring unknown module 'events'."

It's actually running in React Native's environment: https://facebook.github.io/react-native/docs/javascript-environment.html#content — mdunkle, Jul 23 '15 at 04:10
My guess is because `events` requires the function call as part of the initializer, you're going to run into trouble. Maybe try `var event = require('events'); eventEmitter = event.EventEmitter;`? — brandonscript, Jul 23 '15 at 04:12
Yep, bundle file has been created. Works great with `util` and `http`. — mdunkle, Jul 23 '15 at 04:16
Still no luck with `var event = require('events'); eventEmitter = event.EventEmitter;` — mdunkle, Jul 23 '15 at 04:16
Is the events module actually getting bundled into the bundle file? — Asad Saeeduddin, Jul 23 '15 at 04:18

score 2 · Answer 1 · edited Jan 03 '19 at 10:16

2

This is what you want: https://github.com/facebook/react-native/issues/1058

var EventEmitter = require('EventEmitter');

edited Jan 03 '19 at 10:16

Mosh Feu

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answered Jul 24 '15 at 00:26

Logan

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score 1 · Answer 2 · answered May 12 '21 at 22:46

1

Create a file EventEmitter.js

const EventEmitter = require('events')

const emitter = new EventEmitter()

export default emitter

Import it into your component:

import EventEmitter from '@/lib/EventEmitter'

EventEmitter.on('example', this.do_this)

answered May 12 '21 at 22:46

Andrew

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score 0 · Answer 3 · answered Jul 26 '15 at 18:59

I'm using events and a bunch of other node core modules by using react-native-webpack-server. It takes a bit of setup, but otherwise you're going to be running into the same problem with Buffer, assert, util, crypto, etc. Better take care of them all in one go.

How to require Node Events module in React Native

3 Answers3

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