error establishing presence subscription:

[thejasvi-ks]

I'm getting the below error while trying to authenticate the user. I have searched for the solutions and changed the code according to that but nothing seems to be working. A quick help would be much appreciated.

And here is my code,

const express = require('express')
const bodyParser = require('body-parser')
const cors = require('cors')
const Chatkit = require('@pusher/chatkit-server')

const app = express()

const chatkit = new Chatkit.default({

instanceLocator: 'Pusher Locator Key',
key:'Pusher Secret Key'

})

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

app.post('/users', ( req, res ) => {

const { username } = req.body

chatkit.createUser({
name: username,
id: username
})
.then(() => res.sendStatus(201))
.catch(error => {
if(error.error_type === 'services/chatkit/user_already_exists'){
res.sendStatus(200)
}
else{
res.status(error.statusCode).json(error)
}
})
})

app.post('/authenticate', ( req, res ) => {

const { grant_type } = req.body
res.json(chatkit.authenticate({ grant_type, userId : req.query.user_id }))

})

const PORT = 3001
app.listen(PORT, err => {
if (err) {
console.error(err)
} else {
console.log(Running on port ${PORT})
}
})

Thanks in advance..!

[dhairyadwivedi]

I'm getting the same error, any luck?

[precious-adeyinka]

Hello, guys, has anyone found a fix, I have been searching for days please help??? @dhairyadwivedi @thejasvi-ks

[Michaelvons]

Solved !!
[Fix] Try restarting your emulator.