mirror of
https://github.com/fluencelabs/js-libp2p
synced 2025-03-16 15:40:49 +00:00
feat: add createLibp2p to generate a PeerInfo instance (#367)
createLibp2p is a new exported helper function that allows users to create a libp2p instance without worrying about creating a PeerInfo instance first.
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35
src/index.js
35
src/index.js
@ -10,8 +10,10 @@ const errCode = require('err-code')
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const each = require('async/each')
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const series = require('async/series')
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const parallel = require('async/parallel')
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const nextTick = require('async/nextTick')
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const PeerBook = require('peer-book')
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const PeerInfo = require('peer-info')
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const Switch = require('libp2p-switch')
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const Ping = require('libp2p-ping')
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const WebSockets = require('libp2p-websockets')
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@ -34,14 +36,14 @@ const notStarted = (action, state) => {
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}
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/**
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* @fires Node#error Emitted when an error occurs
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* @fires Node#peer:connect Emitted when a peer is connected to this node
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* @fires Node#peer:disconnect Emitted when a peer disconnects from this node
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* @fires Node#peer:discovery Emitted when a peer is discovered
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* @fires Node#start Emitted when the node and its services has started
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* @fires Node#stop Emitted when the node and its services has stopped
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* @fires Libp2p#error Emitted when an error occurs
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* @fires Libp2p#peer:connect Emitted when a peer is connected to this node
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* @fires Libp2p#peer:disconnect Emitted when a peer disconnects from this node
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* @fires Libp2p#peer:discovery Emitted when a peer is discovered
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* @fires Libp2p#start Emitted when the node and its services has started
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* @fires Libp2p#stop Emitted when the node and its services has stopped
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*/
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class Node extends EventEmitter {
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class Libp2p extends EventEmitter {
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constructor (_options) {
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super()
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// validateConfig will ensure the config is correct,
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@ -547,4 +549,21 @@ class Node extends EventEmitter {
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}
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}
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module.exports = Node
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module.exports = Libp2p
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/**
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* Like `new Libp2p(options)` except it will create a `PeerInfo`
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* instance if one is not provided in options.
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* @param {object} options Libp2p configuration options
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* @param {function(Error, Libp2p)} callback
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* @returns {void}
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*/
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module.exports.createLibp2p = (options, callback) => {
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if (options.peerInfo) {
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return nextTick(callback, null, new Libp2p(options))
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}
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PeerInfo.create((err, peerInfo) => {
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if (err) return callback(err)
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options.peerInfo = peerInfo
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callback(null, new Libp2p(options))
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})
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}
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@ -7,8 +7,15 @@ const expect = chai.expect
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const series = require('async/series')
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const createNode = require('./utils/create-node')
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const sinon = require('sinon')
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const { createLibp2p } = require('../src')
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const WS = require('libp2p-websockets')
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const PeerInfo = require('peer-info')
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describe('libp2p creation', () => {
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afterEach(() => {
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sinon.restore()
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})
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it('should be able to start and stop successfully', (done) => {
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createNode([], {
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config: {
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@ -101,4 +108,34 @@ describe('libp2p creation', () => {
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node._switch.emit('error', error)
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})
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})
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it('createLibp2p should create a peerInfo instance', (done) => {
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createLibp2p({
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modules: {
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transport: [ WS ]
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}
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}, (err, libp2p) => {
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expect(err).to.not.exist()
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expect(libp2p).to.exist()
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done()
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})
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})
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it('createLibp2p should allow for a provided peerInfo instance', (done) => {
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PeerInfo.create((err, peerInfo) => {
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expect(err).to.not.exist()
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sinon.spy(PeerInfo, 'create')
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createLibp2p({
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peerInfo,
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modules: {
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transport: [ WS ]
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}
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}, (err, libp2p) => {
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expect(err).to.not.exist()
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expect(libp2p).to.exist()
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expect(PeerInfo.create.callCount).to.eql(0)
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done()
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})
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})
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})
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})
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