2020-01-24 14:40:40 +01:00

52 lines
1.1 KiB
JavaScript

/* eslint-disable no-console */
'use strict'
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const Gossipsub = require('libp2p-gossipsub')
const createNode = async () => {
const peerInfo = await PeerInfo.create()
peerInfo.multiaddrs.add('/ip4/0.0.0.0/tcp/0')
const node = await Libp2p.create({
peerInfo,
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [SECIO],
pubsub: Gossipsub
}
})
await node.start()
return node
}
;(async () => {
const topic = 'news'
const [node1, node2] = await Promise.all([
createNode(),
createNode(),
])
await node1.dial(node2.peerInfo)
await node1.pubsub.subscribe(topic, (msg) => {
console.log(`node1 received: ${msg.data.toString()}`)
})
await node2.pubsub.subscribe(topic, (msg) => {
console.log(`node2 received: ${msg.data.toString()}`)
})
// node2 publishes "news" every second
setInterval(() => {
node2.pubsub.publish(topic, Buffer.from('Bird bird bird, bird is the word!'))
}, 1000)
})();