libp2p pubsub setup

libp2p-pubsub-setup.js

const Libp2p = require('libp2p')
const Gossipsub = require('libp2p-gossipsub')

const node = await Libp2p.create({
  modules: {
    // … other required modules
    pubsub: Gossipsub
  }
})

await node.start()

const topic = 'kickoff-your-application-with-js-libp2p'

node.pubsub.subscribe(topic)
node.pubsub.on(topic, (message) => {
 // Handle message
})
// Publish a new message each second
setInterval(() => {
  libp2p.pubsub.publish(topic, new Uint8Array([21, 31]))
}, 1000)