js-libp2p/examples/pnet/libp2p-node.js

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'use strict'
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const { NOISE } = require('libp2p-noise')
const Protector = require('libp2p/src/pnet')
/**
* privateLibp2pNode returns a libp2p node function that will use the swarm
* key with the given `swarmKey` to create the Protector
*
* @param {Uint8Array} swarmKey
* @returns {Promise<libp2p>} Returns a libp2pNode function for use in IPFS creation
*/
const privateLibp2pNode = async (swarmKey) => {
const node = await Libp2p.create({
addresses: {
listen: ['/ip4/0.0.0.0/tcp/0']
},
modules: {
transport: [TCP], // We're only using the TCP transport for this example
streamMuxer: [MPLEX], // We're only using mplex muxing
// Let's make sure to use identifying crypto in our pnet since the protector doesn't
// care about node identity, and only the presence of private keys
connEncryption: [NOISE],
// Leave peer discovery empty, we don't want to find peers. We could omit the property, but it's
// being left in for explicit readability.
// We should explicitly dial pnet peers, or use a custom discovery service for finding nodes in our pnet
peerDiscovery: [],
connProtector: new Protector(swarmKey)
}
})
return node
}
module.exports = privateLibp2pNode