-
Notifications
You must be signed in to change notification settings - Fork 436
/
1.js
53 lines (44 loc) · 1.25 KB
/
1.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
/* eslint-disable no-console */
'use strict'
const { Buffer } = require('buffer')
const Libp2p = require('../../')
const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const { NOISE } = require('libp2p-noise')
const SECIO = require('libp2p-secio')
const Gossipsub = require('libp2p-gossipsub')
const createNode = async () => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP],
streamMuxer: [Mplex],
connEncryption: [NOISE, SECIO],
pubsub: Gossipsub
}
})
await node.start()
return node
}
;(async () => {
const topic = 'news'
const [node1, node2] = await Promise.all([
createNode(),
createNode()
])
// Add node's 2 data to the PeerStore
node1.peerStore.addressBook.set(node2.peerId, node2.multiaddrs)
await node1.dial(node2.peerId)
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)
})()