Wss Ipfs node on Heroku

Clone this repository and create a new Heroku app using the CLI

heroku apps:create my-ws-node-app
heroku git:remote -a my-ws-node-app

Create a persistent peer-id

Create a secret-key of 32 characters and export it to the environmental variables

SECRET=secret-key
export SECRET="$SECRET"
heroku config:set SECRET=secret-key

Then create a new peer id by running the script create_id

// first install deps
yarn
node create_id.js

The script will produce the file encrypted_key and will log the node peer id to the console.

Deploy

At this point the app is almost ready to be deployed. Add the app name to the environmental variables and deploy

git add . 
git commit -m "Deploy"
heroku config:set APPNAME=my-ws-node-app
git push heroku master

Connect to the node

The node is dialable at the multi-address

/dns4/my-ws-node-app.herokuapp.com/tcp/443/wss/p2p/peer-id

//From a browser node:
this.ipfs.swarm.connect("/dns4/my-ws-node-app.herokuapp.com/tcp/443/wss/p2p/peer-id")
this.ipfs.swarm.peers().then((value)=>{console.log(value)}) 
//you should be able to find your node among the peers 

Pubsub

The node subscribes to the Pubsub channel publicRoom and welcome new peers with a message.

From a browser node:

const room = require('ipfs-pubsub-room')
...
this.Id = await this.ipfs.id()
this.peerId = this.Id.id
this.publicRoom = new room(this.ipfs, 'publicRoom')
this.publicRoom.on('peer joined', (peer) => {
  console.log('Peer joined the room', peer)
  this.publicRoom.broadcast('hello from browser node ' + this.peerId)
})
this.publicRoom.on('message', (message) => {
  console.log('message:', message.data.toString())
})
this.publicRoom.on('peer left', (peer) => {
  console.log('Peer left...', peer)
})
// now started to listen to room
this.publicRoom.on('subscribed', () => {
  console.log('Now connected!')
})
this.publicRoom.broadcast('Hello from hello from browser node ' + this.peerId)