nodejs-grant.js

let PubNub = require('pubnub');

let pubnub = new PubNub({
    publishKey: 'asdfasdf',
    subscribeKey: 'asdfsadf',
    secretKey: 'asdfasdf'
});

const express = require('express')
const app = express()
const bodyParser = require('body-parser');

app.use(bodyParser.json()); // for parsing application/json
app.use(bodyParser.urlencoded({ extended: true })); // for parsing application/x-www-form-urlencoded

app.get('/', function (req, res) {
  res.send('Hello World!')
});

app.post('/setup', function (req, res) {

    console.log('setup called');

    // let gChan = new Date().getTime();
    let gChan = req.body.channel;
    let myUUID = req.body.uuid;
    let myAuthKey = req.body.authKey;

    let chanMeRW = [
        gChan,
        gChan + '-pnpres',
        gChan + ':chat:public.*',
        gChan + ':user:' + myUUID + ':read.*',
        gChan + ':user:' + myUUID + ':write.*'
    ];
    
    pubnub.grant({
        channels: chanMeRW,
        read: true, // false to disallow
        write: true, // false to disallow,
        authKeys: [myAuthKey],
        ttl: 0
    }, function (a,b,c) {

        console.log('cb 1')
        console.log(a,b,c)

        res.send('It worked');
        
    });

});


app.listen(3000, function () {
  console.log('Example app listening on port 3000!')
})

pfunct-grant.js

export default (request, response) => {
    const pubnub = require('pubnub');
    const kvstore = require('kvstore');
    const xhr = require('xhr');

    let headersObject = request.headers;
    let paramsObject = request.params;
    let methodString = request.method;
    let bodyString = request.body;

    console.log('request',request); // Log the request envelope passed
    // Query parameters passed are parsed into the request.params object for you
    // console.log(paramsObject.a) // This would print "5" for query string "a=5

    // Set the status code - by default it would return 200
    response.status = 200;
    
    return request.json().then((body) => {

        let gChan = body.channel;
        let myAuthKey = body.authKey;
        let myUUID = body.uuid;
        
        console.log(gChan, myAuthKey, myUUID)
       
         let chanMeRW = [
            gChan,
            gChan + '-pnpres',
            gChan + ':chat:public.*',
            gChan + ':user:' + myUUID + ':read.*',
            gChan + ':user:' + myUUID + ':write.*'
        ];
        
        return pubnub.grant({
            channels: chanMeRW,
            read: true, // false to disallow
            write: true, // false to disallow,
            authKeys: [myAuthKey],
            ttl: 0
        }).then((res) => { 
            
            console.log('granted on', chanMeRW, myAuthKey);
         
            return response.send(body);
                        
            
        }).catch((error) => { 
            // handle error 
            console.log('couldnt grant')
            console.log(error)
            return response.send(body);
        });
        
    }).catch((err) => {
        // console.log(err)
        return response.send("Malformed JSON body.");
    });
};