TypeError: PUBNUB.init is not a function

Question

I am using Node.js and I'm trying to get PubNub integrated to get my chatroom up and running. I have been following numerous tutorials and they all seem to have PubNub executing from their client-side. However, to ensure the security of my publish-key and subscribe-key I want to have PubNub execute from my server-side (Nodejs). However the problem is occurs exactly when I try to do just that. Here is my server:

var express = require('express');

var path = require('path');

var bodyParser = require('body-parser');

var request = require('request');

var pubnub = require('pubnub');



  pubnub = pubnub.init({

  subscribe_key: 'sub-c-demo',

  publish_key: 'pub-c-demo',

  ssl: true

});

//Defining routes

var routes = require('./routes/index');



//Init express 

var app = express();



app.use(bodyParser.json());

app.use(bodyParser.urlencoded({extended:false}));



//View Engine

app.set('view engine', 'ejs');



//Set Static Folder

app.use(express.static(path.join(__dirname, 'public')));



//Get route

app.use('/', routes);







//Set Port

app.set('port', (process.env.PORT || 3000));



app.listen(app.get('port'), function(){

    console.log('3000 is the magic port!!');

});

Why do I get a

TypeError: pubnub.init is not a function

when I try to initialize pubnub?

$ node server

/Users/macbookpro/Desktop/project007/server.js:8

var pubnub = pubnub.init({

                    ^



TypeError: pubnub.init is not a function

    at Object.<anonymous> (/Users/macbookpro/Desktop/project007/server.js:8:21)

    at Module._compile (module.js:573:32)

    at Object.Module._extensions..js (module.js:582:10)

    at Module.load (module.js:490:32)

    at tryModuleLoad (module.js:449:12)

    at Function.Module._load (module.js:441:3)

    at Module.runMain (module.js:607:10)

    at run (bootstrap_node.js:382:7)

    at startup (bootstrap_node.js:137:9)

    at bootstrap_node.js:497:3

I followed what seemed to be all the necessary steps:

npm i pubnub --save

var pubnub = require('pubnub');

https://cdn.pubnub.com/sdk/javascript/pubnub.4.4.2.min.js

(Included the latest sdk in my header)

But there seems to be an error somewhere which has lead to me to be confused about the error as well as a few other things.

1). I have been piecing things together from all three but which of these tutorials should i really be following?

https://vimeo.com/35557579

https://www.pubnub.com/docs/nodejs/pubnub-javascript-sdk-v4

https://www.pubnub.com/docs/javascript/pubnub-javascript-sdk-v4

2). Does my publish-key and subscribe-key need be secured or can I simply run PubNub from my client-side like shown in most tutorials?

3). Forget about the server-side and client, should I be executing PubNub as a javascript file and linking the script?

<script src="js/pubnubchatroom.js"></script>

I am new to this stuff and im just trying to wrap my head around it all. Thanks in advance!

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Answer 1

PubNub V4 SDK NodeJS new Init

There is a new way to initialize your PubNub SDK. See the following example. v4 SDKs are not drop-in compatible. You can mix v4 and v3 SDKs between environments successfully.

const PubNub = require('pubnub');
const pubnub = new PubNub({
    publishKey : 'demo',
    subscribeKey : 'demo'
})

Follow https://www.pubnub.com/docs/nodejs/pubnub-javascript-sdk-v4
pub/sub keys can be exposed. never expose your secret key.
PubNub is compatible with any strategy in this regard.

TypeError: PUBNUB.init is not a function

PubNub V4 SDK NodeJS new Init

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