vale crec que si

/*
This file is used to configure and run a public node.
The public node is used to listen/accept incoming connections.
This public node can be reached by other nodes behind a NAT.
 */

import { createLibp2p } from 'libp2p'
import { webSockets } from '@libp2p/websockets'
import { noise } from '@chainsafe/libp2p-noise'
import { mplex } from '@libp2p/mplex'
import {publicIpv4} from 'public-ip';

var myNode;

async function startNode ()
{
    let publicIP = await publicIpv4();
    let localIP = "127.0.0.1";
    myNode = await createLibp2p({
        addresses: { listen: ['/ip4/' + publicIP + '/tcp/0/ws', '/ip4/' + localIP + '/tcp/0/ws'] },
        transports: [ webSockets() ],
        connectionEncryption: [ noise() ],
        streamMuxers: [ mplex() ]
    })

    await myNode.start()
            .then(() =>
            {
                console.log("Node ID: " + myNode.peerId.toString())
            })
            .then(() =>
            {
                console.log("Listening:") // Display the listening addresses.
                myNode.getMultiaddrs().forEach((ma) => console.log("\t" + ma.toString()))
            })
            .catch((err) => console.error(err))
}

function connectToNode(addr)
{
    // Try to connect to the node and return if the connection was successful.
    try
    {
        myNode.dial(addr)
        console.log("Connected to " + addr)
        return true
    }
    catch (e)
    {
        console.log("Failed to connect to " + addr)
        return false
    }
}

async function sendMsg(msg, toAddr) {
    // Send a message to the specified node.
    try {
        const {stream} = await myNode.dialProtocol(toAddr, '/echo/1.0.0')
        await pipe(
            [msg],
            stream,
            async function (source) {
                for await (const msg of source) {
                    console.log('Received:', msg.toString())
                }
            }
        )
        return true
    } catch (e) {
        console.log("Failed to send message to " + toAddr)
        return false
    }
}

startNode()
    .then(() => connectToNode("/ip4/90.167.86.174/tcp/40189/ws/p2p/12D3KooWNxtRr8TRfD3tzE8M6De74bYk4UKivCUzb8LbbYMZ1KG2"))
    .catch((err) => console.error(err))