React native and socket.io node not working

Question

Below is my react native component and node server.js code that I am trying to connect to my node websocket backend.

My react code is running on the same computer as the server. I have found so many varying answers on here, and github, none of which I can get working.

I also found this question which was never answered, and this question has an answer, which I cannot get working (was asked over a year ago)

I have found this article and tried to amend my code based on these guidelines but this did not work.

react code

import React from 'react';
import { StyleSheet, Text, View, Image } from 'react-native';

const io = require('socket.io-client/socket.io');
let socket = io('http://localhost:3000');

export default class App extends React.Component {

    constructor(props) {
        super(props);
        console.log(socket);
    }

    render() {
        return (
            <View>
                <Text>Websocket</Text>
            </View>
        );
    }
}

server.js

const express = require('express');
const http = require('http')
const socketio = require('socket.io');

const app = express();
const server = http.Server(app);
const websocket = socketio(server);
server.listen(3000, () => console.log('listening on *:3000'));

console.log(websocket)

// The event will be called when a client is connected.
websocket.on('connection', (socket) => {
  console.log('A client just joined on', socket.id);
});

I am using the following versions of packages

"expo": "^16.0.0",
"react": "16.0.0-alpha.6",
"react-native": "^0.43.4",
"socket.io-client": "^1.7.3"

Answer 1

I believe it should be

const io = require('socket.io-client');

Which does work for me.

I remember running into these sorts of issues when using react native. A lot of socket.io tutorials (including the one on their page) assume you're using an older style of importing JS via script tags in an HTML doc. It looks like socket.io changed the namespace as I do remember it being socket.io-client/socket.io some time ago if memory serves...